阅读说明：本技术 环境适应型数码仿造迷彩瓷砖伪装方法及其应用 (environment-adaptive digital imitation camouflage ceramic tile camouflage method and application thereof ) 是由 苏洪涛 苏彦齐 吴光耀 于 2019-09-12 设计创作，主要内容包括：本发明公开一种环境适应型数码仿造迷彩瓷砖伪装方法及其应用,其方法是先进行目标建筑背景颜色的采集与聚类,确定主要特征色,然后进行伪装斑点的确定与图案设计,再建立目标建筑数码仿造迷彩瓷砖定位编码坐标系,通过二维图形码、四位坐标定位码和十二位包装仓储运输管理码结合的三级编码技术,将设计图纸信息与生产、包装、仓储、运输、现场管理各环节有机衔接,实现按图精准定位铺贴施工。其应用是通过该伪装方法将数码仿造迷彩瓷砖使用于目标建筑外墙面和屋面,实现目标建筑最大程度与周围环境相融合,显著降低目标建筑人眼可视距离观测和卫星可见光学侦察的识别度,有效降低目标建筑的暴露症候,并具有红外伪装效果。(The invention discloses an environment-adaptive digital imitation camouflage color ceramic tile camouflage method and application thereof. The application of the camouflage method is that the digital imitation camouflage color ceramic tile is used for the outer wall surface and the roof of the target building, so that the target building is fused with the surrounding environment to the maximum extent, the recognition degree of the visible distance observation of human eyes and the visible optical reconnaissance of satellites of the target building is obviously reduced, the exposure symptom of the target building is effectively reduced, and the camouflage method has an infrared camouflage effect.)

1. The environment-adaptive digital imitation camouflage color tile camouflage method is characterized by comprising the following steps:

(1) Adopting a mode that a rotor unmanned aerial vehicle simulates a satellite to carry out aerial detection or a field chromatometer to carry out ground detection, collecting color coordinate values of corresponding ground features and landforms in a target building background, then carrying out color clustering, and analyzing and determining the characteristic color of the target building background, wherein the specific process comprises the following steps:

(1-1) selecting a background area eight times of the area of a target building area around the target building as a target building background data acquisition area by taking the target building as a center;

(1-2) with a target building as a center, dividing a target building background data acquisition area into eight area units, calculating average color coordinate values of the area units according to acquired background color data, and taking colors corresponding to the obtained average color coordinate values of the eight area units as background reference colors of the target building for implementing digital imitation camouflage ceramic tile camouflage;

(1-3) dividing each area unit into a plurality of subarea units, collecting data, calculating the average color coordinate value of each subarea unit, and taking the color corresponding to the average color coordinate value of each subarea unit in one area unit as the reference base color of the target building digital imitation camouflage ceramic tile camouflage adjacent to the area unit;

(1-4) calculating and counting the color difference between any two adjacent subarea units in each area unit, and counting through a color difference counter when the calculated value of the color difference is larger than a set value of the color difference; when the calculated value of the chromatic aberration does not exceed the set value of the chromatic aberration, counting by a similar color recorder;

(1-5) respectively aiming at the eight area units, comparing numerical values recorded by the same type of color recorders, and sequencing the main colors according to the numerical values from large to small;

(1-6) calculating the frequency and frequency corresponding to each numerical value recorded by the color recorder of the same type by adopting a permutation map method, sequencing accumulated frequencies from high to low, selecting the color corresponding to the numerical value with the accumulated frequency ratio of 0-80% as the main characteristic color of the background area unit, and taking the corresponding frequency as the basic reference of the ratio of each characteristic color in the pattern design stage;

(2) determining the shape of the digital imitation camouflage spots and designing the patterns:

(2-1) extracting the outline of a background pattern spot after pixel homogenization treatment is carried out on the image of the background of the target building;

(2-2) simulating and drawing the outline of the camouflage spots of the outer vertical surface and the roof of the target building through a computer, so that the camouflage spots become natural continuations of adjacent spots in the background of the target building, and the spot size meets the camouflage requirement under the conditions of human eye visible distance observation and satellite aerial detection;

(2-3) carrying out gridding treatment on the camouflage spot patterns of the outer vertical surface and the roof of the target building, wherein two levels of grid lines are adopted, the first level control grid corresponds to the paving unit, and the second level encryption grid corresponds to a single piece of digital imitation camouflage ceramic tile;

(2-4) drawing a digital imitation camouflage color tile camouflage design drawing of the outer wall and the roof of the target building: designing spot patterns and characteristic colors of digital imitation camouflage ceramic tiles of the outer facades and roofs of the target buildings according to the characteristic colors of spots in regional units adjacent to the target buildings, the proportion of the characteristic colors and the composition relation, drawing characteristic color boundary lines, wherein the characteristic color boundary lines need to be accurate to a secondary encryption grid, and simulating color filling by a computer according to the design;

(3) coding of the digital imitation camouflage ceramic tile:

(3-1) building a tile positioning coding coordinate system according to the digital imitation camouflage tile camouflage design drawing of the outer wall of the target building and the two-stage grid control network determined in the step (2);

(3-2) coding each unit cell in the grid by adopting a three-level coding technology combining a two-dimensional graphic code, a four-position coordinate positioning code and a twelve-position packaging bin storage, transportation and management code;

(4) the model selection, design and manufacture of the digital imitation camouflage ceramic tile are as follows:

(4-1) selecting a tile material: adopting ceramic glazed tiles;

(4-2) designing the tile plane dimension specification: the basic specifications for a single tile include at least one or more of the following three: 73mm is multiplied by 73mm, 95mm is multiplied by 95mm or 45mm is multiplied by 95mm, and the number of the corresponding combinations of each paving unit is as follows: 16 blocks of 73mm multiplied by 73mm, 9 blocks of 95mm multiplied by 95mm or 18 blocks of 45mm multiplied by 95 mm;

(4-3) designing the surface of the ceramic tile: adopting a pitted surface;

(4-4) designing the material composition and the tank casting formula of the main raw materials of the ceramic tile with the characteristic color: taking ten kinds of selected characteristic colors of brown color series and green color series respectively representing the earth and vegetation as sample colors, and developing main components and component feeding ratios of the pitted ceramic glazed tile materials with the characteristic colors through tests;

(4-5) manufacturing the digital imitation camouflage ceramic tile: according to the background characteristic color of a target building area and the tile material formula of each characteristic color, single-color tiles corresponding to each characteristic color are manufactured by a ceramic factory, according to the composition scheme corresponding to the two-dimensional graphic code of each paving and pasting unit, puzzle splicing, kraft paper pasting and positioning code identification of the digital imitation camouflage color tiles are carried out in an assembly shop, boxes are boxed according to the coding sequence, and twelve boxed storage and transportation management code labels are pasted on the box body;

(5) Construction application and effect detection of environment-adaptive digital imitation camouflage tile camouflage:

(5-1) according to a digital imitation camouflage ceramic tile camouflage design drawing, respectively establishing a plane-vertical surface coordinate system of a roof and an outer wall surface of a target building, arranging bricks on the roof and the outer wall surface which are qualified through acceptance and setting out and drawing out positioning grid lines, using a first row and a first column of the positioning coordinate system as reference units, and paving a vertical and horizontal coordinate positioning reference code by using two ceramic tiles marked by chalk;

(5-2) selecting the ceramic tiles corresponding to the codes according to the paving sequence, firstly carrying out template paving construction, carrying out formal paving operation according to the requirements of the template after the template is qualified, and carrying out pointing by adopting joint filling materials of the same color system; the conventional paving operation requirements are the same as the traditional external wall tile paving operation;

And (5-3) after the construction of the digital imitation camouflage color ceramic tile is completed, detecting and verifying the target building camouflage effect by adopting a mode of simulating a satellite with multiple rotors for aerial detection or field chromatometer ground detection or combining two detection methods for the target building and the target building background.

2. The method as claimed in claim 1, wherein the average color coordinate value of each cell is calculated in the step (1-2) by the following formula:

wherein L, a and b are the average color coordinate values of one cell, respectively;

m is a pixel value corresponding to the transverse size of one unit image, n is a pixel value corresponding to the longitudinal size of one unit image, and mxn is the total number of the whole pixels of one unit;

L_i,jColor coordinate L components corresponding to the ith row and the jth column of pixels of the unit;

a_i,jcolor coordinate a components corresponding to ith row and jth column pixels of the unit;

b_i,jthe color coordinate b component corresponding to the ith row and the jth column of the unit pixel;

3. the method as claimed in claim 1, wherein the average color coordinate value of each sub-area unit is calculated in the step (1-3) by:

Selecting a unit in the background of the target building, and assuming that the resolution unit is L_Resolutionthen the corresponding dimension of the cell is L_Resolution＝m_resolution×n_resolution；m_Resolution×n_Resolutionrepresenting the cell in the transverse direction m_Resolutionone pixel, vertical n_Resolutiondividing each pixel into sub-region units;

calculating the average color coordinate value of one of the sub-area units obtained by segmentation as follows:

wherein L, a and b are the average color coordinate values of one subregion unit respectively;

m_Resolutionpixel value, n, corresponding to the lateral dimension of a sub-area unit image_resolutionPixel value, m, corresponding to the longitudinal dimension of a subregion unit image_resolution×n_resolutionThe total number of the whole pixels of one sub-area unit;

L_i,jcolor coordinate L components corresponding to the ith row and the jth column of pixels of the sub-area unit;

a_i,jcolor coordinate a components corresponding to the ith row and the jth column of pixels of the sub-area unit;

b_i,jthe color coordinate b component corresponding to the ith row and the jth column of pixels of the sub-area unit.

4. the method as claimed in claim 1, wherein the color difference statistics in the step (1-4) is performed by:

(1-4a) selecting a first sub-area unit in a first unit in the background of the target building, assuming i₁＝0,j₁＝0；

(1-4b) selecting a sub-area unit adjacent to the first sub-area unit, assuming that i₁＝1,j₁the color difference between the two sub-region units is calculated as 0:

wherein: Δ x ═ x₁-x₂X represents three components of color component coordinates L, a and b, x₁,x₂Testing values for L, a and b of two adjacent area pixels;

setting the rated color difference value of the subarea units as delta, and when delta E is larger than delta, indicating that obvious color difference exists between two adjacent subarea units, increasing 1 in a color difference counter and recording as: s is S +1, and the coordinate value of the color is recorded; otherwise, indicating that the two adjacent subarea units do not have obvious color difference, increasing 1 in the similar color recorders of the corresponding colors of the two subarea units at the moment, and recording color coordinate values;

(1-4c) similarly, calculate i₁＝0,j₁1 and i₁＝0,j₁0 color difference between two adjacent subregion units;

(1-4d) similarly, calculate i₁＝1,j₁0 and i₁＝0,j₁1, color difference between two adjacent subarea units;

(1-4e) similarly, calculate i₁＝1,j₁1 and i₁＝0,j₁when the color difference between two adjacent subarea units is 0, the color difference between four adjacent subarea units is obtained;

(1-4f) selecting a second one of the first cells in the background of the target buildingsub-region unit, let i₁＝i₁+1,j₁＝j₁+1, and then repeating the steps (1-4b) to (1-4e) until the color difference calculation of all the sub-area units in the first unit is completed;

(1-4g) repeating the steps (1-4a) to (1-4f) until the color difference calculation of all the sub-area units in the target building background is completed.

5. The method of claim 1, wherein in the step (1-5), the dominant colors mainly comprise two color systems, the first color system is a brown color system representing the earth, and the second color system is a green color system representing the vegetation on the earth; wherein, the characteristic colors of the brown system mainly comprise khaki, light brown, medium brown, grey brown and dark grey brown, and the characteristic colors of the green system mainly comprise light green, medium green, grass green, brown green and dark green.

6. the method as claimed in claim 1, wherein in the step (2-1), when the pixel homogenization process and the background pattern spot extraction are performed on the image of the background of the target building, the process is as follows:

(2-1a) preprocessing the pattern pixels of the target building background: after the color pattern of the target building background is extracted, converting the color pattern into a gray level image, and calculating the gray level value of each pixel in the gray level image by adopting the following formula:

r, G, B are the original RGB values of the image pixels respectively;

(2-1b) homogenizing the gray values of all pixels of the background gray image of the target building, enhancing the contrast of the whole image, and enabling the probability of occurrence of various pixels of the background image to be basically the same, thereby facilitating the next contour extraction;

At this time, the gray values and ranges of all pixels of the target building background gray image need to be calculated, wherein the gray values correspond to the L component of the color coordinate, and the specific steps are as follows:

counting the number of pixels in each gray level of the image to obtain the number of gray values of each pixel in the imagei.e., the total number of pixels having a gray level of i, i ∈ [0,255 [ ]]；

Counting the accumulated number of pixels smaller than each gray level in the background gray level image of the target building;

establishing a gray level mapping rule according to a histogram homogenization principle, and drawing a pixel histogram after gray level homogenization treatment;

fourthly, mapping the gray level of each pixel point of the gray level image of the background of the target building to a new image to obtain a background gray level image after homogenization treatment;

(2-1c) obtaining derivative G of gray scale in X, Y direction in gray scale image by derivative calculation method_x、G_yAnd calculating the gradient size:

calculating the gradient direction:

After the edge direction is solved, the gradient size and the gradient direction of the gray level image after the target background homogenization treatment in the horizontal direction, the vertical direction, the 45-degree direction and the 135-degree direction are respectively calculated by adopting the same method, so that adjacent pixels in the gradient direction of the pixel are obtained;

traversing the image, and if the gray value of a certain pixel is not the maximum compared with the gray values of the front and the back pixels in the gradient direction, setting the pixel value as 0, namely not the contour edge; otherwise, setting the pixel value of the corresponding position as 1 for the maximum value; thereby extracting the outline of the background pattern blob.

7. The method as claimed in claim 1, wherein in (2-2), when the computer simulates the contour of the camouflage spots on the facade and roof of the target building, firstly considering the camouflage effect of the spot pattern under the observation condition of the visible distance of human eyes, secondly considering the camouflage effect of the spot pattern under the satellite detection condition, and then arranging the digital camouflage spots.

8. the method as claimed in claim 1, wherein in the step (4-4), when the digital imitation camouflage color tile is manufactured, the main raw materials used for the characteristic colors correspondingly comprise the following components in parts by weight:

Light green: 11 parts of calcined talc, 48 parts of albite, 11 parts of argil, 6 parts of quartz, 5 parts of double-flying powder, 6 parts of alumina, 6 parts of barium carbonate, 1 part of zirconium silicate, 1 part of frit, 3.3 parts of chromium green, 1.2 parts of orange and 2.2 parts of praseodymium yellow;

middle green: 10 parts of calcined talc, 47 parts of albite, 10 parts of argil, 5 parts of quartz, 4 parts of double-flying powder, 5 parts of alumina, 5 parts of barium carbonate, 2 parts of zirconium silicate, 3 parts of frit, 3.1 parts of malachite green and 7.2 parts of chromium green;

Grass green: 11 parts of calcined talc, 47 parts of albite, 9 parts of argil, 6 parts of quartz, 3 parts of double-flying powder, 7 parts of alumina, 5 parts of barium carbonate, 2 parts of zirconium silicate, 3 parts of frit, 4 parts of chromium green, 2.9 parts of zirconium iron red and 1.8 parts of praseodymium yellow;

Brown green: 10 parts of calcined talc, 37 parts of albite, 10 parts of argil, 5 parts of quartz, 4 parts of fly ash, 7 parts of alumina, 5 parts of barium carbonate, 3 parts of frit, 10 parts of orange, 2.5 parts of brilliant black and 7 parts of chromium green;

Green black: 11 parts of calcined talc, 40 parts of albite, 10 parts of argil, 5 parts of quartz, 3 parts of fly ash, 6 parts of alumina, 6 parts of barium carbonate, 2.5 parts of frit, 6.5 parts of chrome green, 3.5 parts of brilliant black, 2.9 parts of peacock blue and 4.8 parts of cobalt blue;

And (4) earthy yellow: 10 parts of calcined talc, 51 parts of albite, 10 parts of white clay, 5 parts of quartz, 3 parts of double-flying powder, 7 parts of alumina, 5 parts of barium carbonate, 3 parts of frit, 5 parts of orange, 0.3 part of brilliant black and 1 part of praseodymium yellow;

light brown: 10 parts of calcined talc, 44 parts of albite, 10 parts of white clay, 5 parts of quartz, 3 parts of double-flying powder, 7 parts of alumina, 5 parts of barium carbonate, 2 parts of zirconium silicate, 2 parts of frit, 1.9 parts of ferrozirconium red, 0.8 part of cobalt blue and 9.5 parts of praseodymium yellow;

Medium brown: 10 parts of calcined talc, 50 parts of albite, 10 parts of argil, 5 parts of quartz, 3 parts of fly ash, 7 parts of alumina, 5 parts of barium carbonate, 3 parts of frit, 7 parts of orange, 0.4 part of brilliant black and 0.9 part of malachite green;

Grey brown: 10 parts of calcined talc, 46 parts of albite, 10 parts of argil, 5 parts of quartz, 3 parts of double-flying powder, 7 parts of alumina, 5 parts of barium carbonate, 2 parts of zirconium silicate, 2 parts of frit, 1.5 parts of ferrozirconium red, 1 part of cobalt blue and 8 parts of praseodymium yellow;

dark grey brown: 10 parts of calcined talc, 46 parts of albite, 10 parts of argil, 5 parts of quartz, 3 parts of fly ash, 7 parts of alumina, 5 parts of barium carbonate, 3 parts of frit, 9.5 parts of orange, 0.4 part of brilliant black and 1.3 parts of malachite green.

9. use of the method for camouflaging an environmentally adapted digital imitation camouflage tile according to any one of claims 1 to 8, wherein the digital imitation camouflage tile is applied to the exterior wall surface and roof of a target building by the camouflaging method, so that the target building is organically integrated with the surrounding environment in terms of color pattern, brightness distribution and the like.

Technical Field

the invention relates to the technical field of appearance camouflage of ground buildings and structures, in particular to an environment-adaptive digital imitation camouflage ceramic tile camouflage method and application thereof.

background

at present, a large amount of battlefield facilities of our army expose the sign obviously, current building outer wall generally adopts the mode of camouflage coating to disguise, nevertheless after long-term the use, this disguise mode exists that the durability is poor, it is serious to warp the camouflage vestige, military totem is too showing etc. seriously not enough, can't realize the battlefield facility and peripheral natural environment in the color pattern, the coordination in aspects such as bright and dark distribution, actual camouflage effect is relatively poor, consequently, need to study the camouflage scheme that has real realistic meaning and have the novel material of corresponding camouflage function urgently.

disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides an environment-adaptive digital imitation camouflage color ceramic tile camouflage method based on the imitation camouflage color camouflage theory, which can effectively improve the camouflage effect of the building outer wall, improve the harmony of battlefield facilities and the surrounding natural environment in the aspects of color patterns, brightness distribution and the like, and reduce the visual distance observation of human eyes and the recognition degree of visible optical reconnaissance of a satellite on a target building.

another object of the present invention is to provide an application of the above-mentioned environment-adaptive digital camouflage pattern ceramic tile camouflage method.

the technical scheme of the invention is as follows: an environment-adaptive digital imitation camouflage ceramic tile camouflage method comprises the following steps:

(1) collecting and clustering the background color of the target building: the method comprises the following steps of adopting a mode that a rotor unmanned aerial vehicle simulates a satellite to carry out aerial detection or a field color difference instrument to carry out ground detection, collecting color coordinate values of corresponding ground features and landforms in a target building background, then carrying out color clustering, and analyzing and determining the characteristic color of the target building background, wherein the specific method comprises the following steps:

(1-1) selecting a background area eight times of the area of a target building area around the target building as a target building background data acquisition area by taking the target building as a center;

(1-2) with a target building as a center, dividing a target building background data acquisition area into eight area units, calculating average color coordinate values of the area units according to acquired background color data, and taking colors corresponding to the obtained average color coordinate values of the eight area units as background reference colors of the target building for implementing digital imitation camouflage ceramic tile camouflage;

(1-3) dividing each area unit into a plurality of subarea units, collecting data, calculating the average color coordinate value of each subarea unit, and taking the color corresponding to the average color coordinate value of each subarea unit in one area unit as the reference base color of the target building digital imitation camouflage ceramic tile camouflage adjacent to the area unit;

(1-4) calculating and counting the color difference between any two adjacent subarea units in each area unit, and counting through a color difference counter when the calculated value of the color difference is larger than a set value of the color difference; when the calculated value of the chromatic aberration does not exceed the set value of the chromatic aberration, counting by a similar color recorder;

(1-5) respectively aiming at the eight area units, comparing numerical values recorded by the same type of color recorders, and sequencing the main colors according to the numerical values from large to small;

(1-6) calculating the frequency and frequency corresponding to each numerical value recorded by the color recorder of the same type by adopting a permutation map method, sequencing accumulated frequencies from high to low, selecting the color corresponding to the numerical value with the accumulated frequency ratio of 0-80% as the main characteristic color of the background area unit, and taking the corresponding frequency as the basic reference of the ratio of each characteristic color in the pattern design stage;

(2) Determining the shape of the digital imitation camouflage spots and designing the patterns:

(2-1) carrying out pixel homogenization treatment on the acquired background image of the target building, and extracting the outline of a background pattern spot;

(2-2) simulating and drawing the outline of the camouflage spots of the outer vertical surface and the roof of the target building through a computer, so that the camouflage spots become natural continuations of adjacent spots in the background of the target building, and the spot size meets the camouflage requirement under the conditions of human eye visible distance observation and satellite aerial detection;

(2-3) carrying out gridding treatment on the camouflage spot patterns of the outer vertical surface and the roof of the target building, wherein two levels of grid lines are adopted, the first level control grid corresponds to the paving unit, and the second level encryption grid corresponds to a single piece of digital imitation camouflage ceramic tile;

(2-4) drawing a digital imitation camouflage color tile camouflage design drawing of the outer wall and the roof of the target building: designing spot patterns and characteristic colors of digital imitation camouflage ceramic tiles of the outer facades and roofs of the target buildings according to the characteristic colors of spots in regional units adjacent to the target buildings, the proportion of the characteristic colors and the composition relation, drawing characteristic color boundary lines, wherein the characteristic color boundary lines need to be accurate to a secondary encryption grid, and simulating color filling by a computer according to the design;

(3) The coding of the digital imitation camouflage ceramic tile mainly comprises the following steps:

(3-1) building a tile positioning coding coordinate system according to the digital imitation camouflage tile camouflage design drawing of the outer wall of the target building and the two-stage grid control network determined in the step (2);

(3-2) coding each unit cell in the grid by adopting a three-level coding technology combining a two-dimensional graphic code, a four-position coordinate positioning code and a twelve-position packaging bin storage, transportation and management code;

Through a coding technology, design drawing information is organically linked with links of production, packaging, storage, transportation and field management, exclusive customization of a target building digital imitation camouflage color tile camouflage scheme from design, production, transportation to field construction is realized, the target building after camouflage is fused with a background to the maximum extent, the visible optical reconnaissance recognition degree of a target building satellite is obviously reduced, and the camouflage effect is achieved;

(4) the model selection, design and manufacture of the digital imitation camouflage ceramic tile are as follows:

(4-1) selecting a tile material: the ceramic glazed tile is adopted, and the requirement of the conventional performance index meets the requirement of GB/T4100-2015 (ceramic tile) appendix J;

(4-2) designing the tile plane dimension specification: according to the requirement of visible optical reconnaissance of a satellite on the size of a target building camouflage spot, considering the appearance of the outer facade of the building, the size module matching of the outer wall of the building and the setting of the width of a brick joint, the basic specifications of a single tile of the invention include but are not limited to three basic specifications of 73mm multiplied by 73mm, 95mm multiplied by 95mm and 45mm multiplied by 95mm, and each paving unit (300mm multiplied by 300mm) corresponding to the three basic specifications of 73mm multiplied by 73mm, 95mm multiplied by 95mm and 45mm multiplied by 95mm is combined according to 16 blocks of 73mm multiplied by 73mm or 9 blocks of 95mm multiplied by 95mm or 18 blocks of 45mm multiplied by 95 mm;

(4-3) designing the surface of the ceramic tile: the rough surface is adopted to imitate the concave-convex feeling of leaves and the ground, the light scattering effect is achieved, the light reflectivity is reduced, the surface glossiness is controlled to be 2-10 degrees, the surface glossiness is determined according to the peripheral landform glossiness, and the planar tile is not adopted due to the fact that the difference between the glossiness and the peripheral landform glossiness is large;

(4-4) designing the material composition and the tank casting formula of the main raw materials of the ceramic tile with the characteristic color: the method comprises the following steps of taking 10 selected characteristic colors of brown color systems and green color systems which respectively represent the earth and vegetation as sample colors, and developing the material composition of the rough-surface ceramic glazed tile with each characteristic color and the tank-casting proportioning scheme of each component through a large number of tests;

(4-5) manufacturing the digital imitation camouflage ceramic tile: according to the background characteristic color of a target building area and the tile material formula of each characteristic color, which are determined by design, a ceramic factory is used for manufacturing single-color tiles corresponding to each characteristic color, according to the composition scheme corresponding to the two-dimensional graphic code of each paving and pasting unit, puzzles, kraft paper pasting and positioning code identification of the digital imitation camouflage color tiles are carried out in an assembly shop, the tiles are boxed (22 tiles in each box) according to the coding sequence, and twelve boxed warehousing and transportation management code labels are pasted on the box body;

(5) Construction application and effect detection of environment-adaptive digital imitation camouflage tile camouflage:

(5-1) according to a digital imitation camouflage ceramic tile camouflage design drawing, respectively establishing a plane-vertical surface coordinate system of a roof and an outer wall surface of a target building, arranging bricks on the roof and the outer wall surface which are qualified through acceptance and setting out and drawing out positioning grid lines, using a first row and a first column of the positioning coordinate system as reference units, and paving a vertical and horizontal coordinate positioning reference code by using two ceramic tiles marked by chalk;

(5-2) selecting the ceramic tiles corresponding to the codes according to the paving sequence, firstly carrying out template paving construction, carrying out formal paving operation according to the requirements of the template after the template is qualified, and carrying out pointing by adopting joint filling materials of the same color system; the conventional paving operation requirements are the same as the traditional external wall tile paving operation;

and (5-3) after the construction of the digital imitation camouflage color ceramic tile is completed, detecting and verifying the target building camouflage effect by adopting a mode of simulating a satellite with multiple rotors for aerial detection or field chromatometer ground detection or combining two detection methods for the target building and the target building background.

In the step (1-2), when the average color coordinate value of each cell is calculated, the calculation formula is as follows:

wherein L, a and b are the average color coordinate values of one cell, respectively;

m is a pixel value corresponding to the transverse size of one unit image, n is a pixel value corresponding to the longitudinal size of one unit image, and mxn is the total number of the whole pixels of one unit;

L_i,jColor coordinate L components corresponding to the ith row and the jth column of pixels of the unit;

a_i,jColor coordinate a components corresponding to ith row and jth column pixels of the unit;

b_i,jthe color coordinate b component corresponding to the ith row and the jth column of the unit pixel;

in the step (1-3), when the average color coordinate value of each sub-area unit is calculated, the calculation method is as follows:

Selecting a unit in the background of the target building, and assuming that the resolution unit is L_resolutionthen the corresponding dimension of the cell is L_resolution＝m_Resolution×n_resolution；m_resolution×n_ResolutionRepresenting the cell in the transverse direction m_ResolutionOne pixel, vertical n_resolutionDividing each pixel into sub-region units;

Calculating the average color coordinate value of one of the sub-area units obtained by segmentation as follows:

Wherein L, a and b are the average color coordinate values of one subregion unit respectively;

m_resolutionpixel value, n, corresponding to the lateral dimension of a sub-area unit image_ResolutionPixel value, m, corresponding to the longitudinal dimension of a subregion unit image_Resolution×n_resolutionThe total number of the whole pixels of one sub-area unit;

L_i,jcolor coordinate L components corresponding to the ith row and the jth column of pixels of the sub-area unit;

a_i,jColor coordinate a components corresponding to the ith row and the jth column of pixels of the sub-area unit;

b_i,jColor coordinate b components corresponding to the ith row and the jth column of pixels of the sub-area unit;

in the step (1-4), the color difference statistics is performed, and the specific process is as follows:

(1-4a) selecting a first sub-area unit in a first unit in the background of the target building, assuming i₁＝0,j₁＝0；

(1-4b) selecting a sub-area unit adjacent to the first sub-area unit, assuming that i₁＝1,j₁The color difference between the two sub-region units is calculated as 0:

wherein: Δ x ═ x₁-x₂x represents three components of color component coordinates L, a and b, x₁and x₂respectively representing the test values of three components of color component coordinates L, a and b of the unit pixels of two adjacent subregions;

Setting the rated color difference value as delta, when delta E is larger than delta, indicating that obvious color difference exists between two adjacent subarea units, and increasing 1 in a color difference counter, and recording as: s is S +1, and the coordinate value of the color is recorded; otherwise, indicating that the two adjacent subarea units do not have obvious color difference, increasing 1 in the similar color recorders of the corresponding colors of the two subarea units at the moment, and recording color coordinate values;

(1-4c) similarly, calculate i₁＝0,j₁1 and i₁＝0,j₁0 color difference between two adjacent subregion units;

(1-4d) similarly, calculate i₁＝1,j₁0 and i₁＝0,j₁1, color difference between two adjacent subarea units;

(1-4e) similarly, calculate i₁＝1,j₁1 and i₁＝0,j₁when the color difference between two adjacent subarea units is 0, the color difference between four adjacent subarea units is obtained;

(1-4f) selecting a second sub-area unit in the first unit in the background of the target building, assuming i₁＝i₁+1,j₁＝j₁+1, and then repeating the steps (1-4b) to (1-4e) until the color difference calculation of all the sub-area units in the first unit is completed;

(1-4g) repeating the steps (1-4a) to (1-4f) until the color difference calculation of all the sub-area units of all the units in the target building background is completed;

in the step (1-5), the main color mainly comprises two color systems, wherein the first color system is a brown color system representing the earth, and the second color system is a green color system representing the earth vegetation;

In the step (1-6), the determined main characteristic colors are selected to mainly comprise five characteristic colors of a brown system and a green system, wherein the characteristic colors of the brown system comprise five colors of khaki, light brown, medium brown, grey brown and dark grey brown, and the characteristic colors of the green system mainly comprise five colors of light green, medium green, grass green, brown green and dark green.

In the step (2-1), when pixel homogenization processing is performed on the image of the target building background and background pattern spots are extracted, the processing process specifically comprises the following steps:

(2-1a) preprocessing the pattern pixels of the target building background: after the color pattern of the target building background is extracted, converting the color pattern into a gray image, and calculating the gray value of each pixel in the gray image by adopting an average value method:

R, G, B are the original RGB values of the image pixels respectively;

(2-1b) homogenizing the gray values of all pixels of the background gray image of the target building, enhancing the contrast of the whole image, and enabling the probability of occurrence of various pixels of the background image to be basically the same, thereby facilitating the next contour extraction; at this time, the gray values (corresponding to the L components of the color coordinates) and ranges of all pixels of the target building background gray image need to be calculated, and the specific steps are as follows:

counting the number of pixels in each gray level of the image to obtain the number of gray values of each pixel in the imagei.e., the total number of pixels having a gray level of i (i ∈ [0,255 ])])；

Counting the accumulated number of pixels smaller than each gray level in the background gray level image of the target building;

establishing a gray level mapping rule according to a histogram homogenization principle, and drawing a pixel histogram after gray level homogenization treatment;

fourthly, mapping the gray level of each pixel point of the gray level image of the background of the target building to a new image to obtain a background gray level image after homogenization treatment;

(2-1c) obtaining derivative G of gray scale in X, Y direction in gray scale image by derivative calculation method_x、G_ythe magnitude of the gradient is found:

Calculate the direction of the gradient:

after the edge direction is solved, the gradient size and the gradient direction of the gray level image after the target background homogenization treatment in the horizontal direction, the vertical direction, the 45-degree direction and the 135-degree direction are respectively calculated in the same way, so that adjacent pixels in the gradient direction of the pixel are obtained;

Traversing the image, and if the gray value of a certain pixel is not the maximum compared with the gray values of the front and the back pixels in the gradient direction, setting the pixel value as 0, namely not the contour edge; otherwise, setting the pixel value of the corresponding position as 1 for the maximum value; thereby extracting the outline of the background pattern blob.

In the step (2-2), the computer simulates and draws the contours of the camouflage spots of the outer vertical surface and the roof of the target building, and the requirements are as follows:

(2-2a) first, the camouflage effect of the speckle pattern under the observation condition of the visual distance of human eyes is considered. In order to make the camouflage spots on the surface of the building target have the effect of dividing the original regular contour of the target surface, the size (D, unit: meter) of the camouflage spots is ensured to meet the following requirement, so that the camouflage spots on the surface of the target building can be observed by a detector (human eyes) at a certain distance (D, unit: meter) to play a camouflage effect,

in the formula, k represents the brightness contrast between adjacent spots on the target, and the formula is established under the condition that k is more than or equal to 0.4;

d is the size of the camouflage spots, and the numerical value is equal to the sum of the radiuses of the inscribed circle and the circumscribed circle of the spot outline;

And D is the distance between the human eyes and the observation target building.

(2-2b) the disguising effect of the speckle pattern under satellite detection conditions is secondarily considered. The digital camouflage is formed by combining a plurality of rectangular or square monochromatic color blocks, and the size of the monochromatic color blocks of the digital camouflage is not less than 0.1m in view of the fact that the theoretical value of the imaging resolution of a satellite is about 0.1m, and when the size of a target spot is less than 0.1m, the target spot is difficult to image and discover.

(2-2c) the arrangement of the digital camouflage spots should meet the following requirements:

Firstly, the digital camouflage spots cannot be symmetrically configured on the target building so as to avoid exposing the original shape outline.

secondly, spots at the edge of the contour of the target building cannot be broken at the edge of the contour, and the spots are extended to the adjacent surface.

And thirdly, when the spot pattern extends, in order to prevent the repeated three-dimensional shape of the target, the axis of the spot and the intersecting line of two adjacent surfaces on the target building form an angle of 30 degrees.

In the step (2-3), the gridding treatment is performed on the simulated camouflage spot patterns of the outer vertical surface and the roof of the target building, which means that the drawn simulated camouflage patterns of the outer vertical surface of the target building are digitally treated according to the block-shaped characteristic of the tile paving on the outer wall of the target building, and the specific method comprises the following steps:

And (2-3a) drawing an initial first-level grid line of 300mm multiplied by 300mm of an external wall surface development drawing of the target building by taking the intersection point of the leftmost corner line of the facade drawing of the target building and the lower edge of the cornice as a coordinate zero point and respectively taking the right direction and the downward direction as positive directions according to the specification (adopting a general specification of 300mm multiplied by 300mm) of the tile paving and pasting unit. Each primary grid corresponds to one tile laying unit.

(2-3b) locally aligning the initial primary grid lines. In addition to the coordinate system baseline, each wall cylinder surface capable of forming an independent plane is taken as a plane paving unit in the expanded view, the left side line or the external corner line of each plane paving unit is taken as a relay alignment datum line of the primary grid line longitudinally, each initial primary grid line longitudinally on the right side of the paving plane unit is aligned to the left side, the initial line of each primary grid line longitudinally of each plane paving unit is made to coincide with each longitudinal alignment datum line, and the positioning of the primary grid line is completed.

And (2-3c) drawing a secondary encrypted grid line by taking the primary grid after alignment and positioning as a reference and the geometric dimension of a single tile as a unit according to the design of a brick joint when the tile is laid, wherein the secondary grid line takes a coordinate system baseline and a primary grid alignment baseline as initial lines in the longitudinal direction. Each grid of the secondary encrypted grid lines corresponds to a tile.

(2-3d) drawing a first-stage grid line expansion diagram and a second-stage grid line expansion diagram of the side surfaces of the external wall column and the door and window opening according to the aligned and positioned first-stage grid and the encrypted second-stage grid lines and in combination with a target building external elevation diagram, and making the joints of the tile paved on the whole building external elevation neat and beautiful by using the principle that more than one non-integral tile does not appear on each relatively independent paving elevation, and meanwhile, the construction is convenient, and the cutting of the non-integral tile is reduced.

In the step (2-4), drawing a digital imitation camouflage color ceramic tile camouflage design drawing of the outer wall and the roof of the target building, wherein the total requirements of color filling simulated by a computer are as follows:

(2-4a) with the secondary encryption grid as a basic unit, on the premise that the size of each basic color block is not small, and the calculated size d of the camouflage color spots, drawing the boundary of each characteristic color block to enable the boundary to be basically matched with the outline of each spot pattern.

(2-4b) configuring dark colors at the convex positions on the target building as much as possible, and configuring light color spots at the concave positions as much as possible. The top of the target should be configured with dark spots, a backlight surface and shadow parts as much as possible, and more bright spots can be configured properly.

(2-4c) because the door and window opening has the black hole effect, the door and window opening part should adopt dark green or dark green, the window frame should also adopt medium green or dark green, should not adopt bright color window frames such as white, silver white, should adopt coated glass simultaneously, reduce the discernment degree of door and window opening, reduce and expose the symptom.

(2-4d) the roof is used as a key object for satellite detection, a large number of medium-green colors are adopted in combination with partial light green, brown green and a small part of dark green to simulate the natural growth state of earth surface vegetation during high-altitude satellite detection under the illumination condition, and if necessary, parts of the roof can be supplemented with earthy yellow, light brown and the like to simulate road crossing, so that the purposes of reducing building appearance recognition degree and exposure symptom are achieved together, and the camouflage effect is achieved.

In the step (3-1), the ceramic tile positioning coding coordinate system is established by the specific method:

(3-1a) according to the digital imitation camouflage ceramic tile camouflage design drawing (the outer wall surface development drawing) of the outer wall of the target building and the two-stage grid control net established in the step (2), a ceramic tile positioning coding coordinate system is established by taking the intersection point (the paving initial point) of the leftmost side line of the positive vertical surface of the target building and the lower edge of the cornice as the coordinate zero point, the horizontal right side of the lower edge of the cornice as the positive direction of the transverse coordinate axis and the vertical downward side of the leftmost side line (the external angle line) of the positive vertical surface as the positive direction of the vertical coordinate axis.

(3-1b) taking one standard grid of the primary grid lines of the design drawing and one primary grid which is more than one half of the standard grid as a coding counting unit (corresponding to one paving unit); according to the rounding principle, the area of the grid cells of the next level after the local alignment positioning is less than one half of the area of the standard cells, and the counting is zero, namely the coding counting is not involved.

(3-1c) taking the paving starting point as a coordinate zero point, and taking the plane operation sequence to the right as a positive direction of a horizontal coordinate and taking the plane operation retreat as a positive direction of a vertical coordinate according to the ceramic tile paving operation habit.

in the step (3-2), the three-level coding method combining the two-dimensional graphic code, the four-position coordinate positioning code and the twelve-position packaging bin storage, transportation and management code specifically comprises the following steps:

And (3-2a) using four-digit codes formed by the counted primary grid positioning coordinates as codes of the corresponding digital imitation camouflage ceramic tile paving units. The first two digits are longitudinal positioning coordinates of the paving unit and represent that the paving unit is positioned in the second row of a target building vertical face coordinate system; the last two digits are the lateral positioning coordinates of the paving unit, which indicate that the paving unit is located in the second row of the target building facade coordinate system.

and (3-2b) carrying out digital coding processing on each characteristic color block of the secondary grid included in the coded primary grid, representing corresponding characteristic color by a number, and representing the composition of the digital imitation camouflage pattern of the paving unit by the formed two-dimensional digital graphic code.

(3-2c) the twelve packaging bin storage, transportation and management codes represent the items, building numbers, engineering parts and coordinate intervals corresponding to each box of ceramic tiles. The first four digits are project information and project position codes, the first letter is project codes (distinguishing different project projects), the second and third digits are target building codes (distinguishing different buildings of the same project and numbering by Arabic numerals), the fourth letter is project position codes (representing that an application part is an outer wall or a roof), the middle four digits are coordinate positioning codes of the box of tile numbers in the front, the last four digits are coordinate positioning codes of the box of tile numbers in the back, and the last eight digits jointly form positioning interval codes when the box of tile is laid and pasted.

and (3-2d) organically linking the design drawing information with the links of production, packaging, storage, transportation and field management through a coding technology, and realizing the exclusive customization of the target building digital imitation camouflage color tile camouflage scheme from design, production, transportation to field construction, so that the camouflage target building is fused with the background to the maximum extent.

(3-2e) the codes of the digital imitation camouflage ceramic tiles, small-area irregular paving units such as the side faces of external wall columns, window sill eaves, door and window holes and the like, and first-level grids with the area smaller than one-half paving units and without participating in counting of the first-level grid codes, wherein the first-level grid codes are not participated in, the required ceramic tiles at the part are processed by adopting a mode of matching colors and composing plates on site according to design drawings, and cutting and waste of the ceramic tiles are reduced.

In the step (4-2), in order to reduce the eye visual observation and satellite visible optical reconnaissance identification degree of the target building camouflage spots, small-area irregular paving units such as windowsill eaves, door and window openings and the like are adopted, and more than two monochromatic tiles are adopted to form a monochromatic camouflage spot when the digital camouflage tiles are subjected to field color matching and plate combination processing.

In the step (4-4), ten characteristic colors of green series and brown series of surface vegetation and the land are represented respectively, and the main raw materials and the components adopted by each characteristic digital camouflage ceramic tile are as follows (the components are calculated by weight parts):

(4-4a) greenish color: 11 parts of calcined talc, 48 parts of albite, 11 parts of argil, 6 parts of quartz, 5 parts of double-flying powder, 6 parts of alumina, 6 parts of barium carbonate, 1 part of zirconium silicate, 1 part of frit, 3.3 parts of chromium green, 1.2 parts of orange and 2.2 parts of praseodymium yellow;

Green in (4-4 b): 10 parts of calcined talc, 47 parts of albite, 10 parts of argil, 5 parts of quartz, 4 parts of double-flying powder, 5 parts of alumina, 5 parts of barium carbonate, 2 parts of zirconium silicate, 3 parts of frit, 3.1 parts of malachite green and 7.2 parts of chromium green;

(4-4c) grass green: 11 parts of calcined talc, 47 parts of albite, 9 parts of argil, 6 parts of quartz, 3 parts of double-flying powder, 7 parts of alumina, 5 parts of barium carbonate, 2 parts of zirconium silicate, 3 parts of frit, 4 parts of chromium green, 2.9 parts of zirconium iron red and 1.8 parts of praseodymium yellow;

(4-4d) brownish green: 10 parts of calcined talc, 37 parts of albite, 10 parts of argil, 5 parts of quartz, 4 parts of fly ash, 7 parts of alumina, 5 parts of barium carbonate, 3 parts of frit, 10 parts of orange, 2.5 parts of brilliant black and 7 parts of chromium green;

(4-4e) greenish black: 11 parts of calcined talc, 40 parts of albite, 10 parts of argil, 5 parts of quartz, 3 parts of fly ash, 6 parts of alumina, 6 parts of barium carbonate, 2.5 parts of frit, 6.5 parts of chrome green, 3.5 parts of brilliant black, 2.9 parts of peacock blue and 4.8 parts of cobalt blue;

(4-4f) earthy yellow: 10 parts of calcined talc, 51 parts of albite, 10 parts of white clay, 5 parts of quartz, 3 parts of double-flying powder, 7 parts of alumina, 5 parts of barium carbonate, 3 parts of frit, 5 parts of orange, 0.3 part of brilliant black and 1 part of praseodymium yellow;

(4-4g) light brown: 10 parts of calcined talc, 44 parts of albite, 10 parts of white clay, 5 parts of quartz, 3 parts of double-flying powder, 7 parts of alumina, 5 parts of barium carbonate, 2 parts of zirconium silicate, 2 parts of frit, 1.9 parts of ferrozirconium red, 0.8 part of cobalt blue and 9.5 parts of praseodymium yellow;

Brown in (4-4 h): 10 parts of calcined talc, 50 parts of albite, 10 parts of argil, 5 parts of quartz, 3 parts of fly ash, 7 parts of alumina, 5 parts of barium carbonate, 3 parts of frit, 7 parts of orange, 0.4 part of brilliant black and 0.9 part of malachite green;

(4-4i) grayish brown: 10 parts of calcined talc, 46 parts of albite, 10 parts of argil, 5 parts of quartz, 3 parts of double-flying powder, 7 parts of alumina, 5 parts of barium carbonate, 2 parts of zirconium silicate, 2 parts of frit, 1.5 parts of ferrozirconium red, 1 part of cobalt blue and 8 parts of praseodymium yellow;

(4-4j) dark grayish brown: 10 parts of calcined talc, 46 parts of albite, 10 parts of argil, 5 parts of quartz, 3 parts of fly ash, 7 parts of alumina, 5 parts of barium carbonate, 3 parts of frit, 9.5 parts of orange, 0.4 part of brilliant black and 1.3 parts of malachite green.

The invention also provides an application of the environment-adaptive digital imitation camouflage ceramic tile camouflage method, and the digital imitation camouflage ceramic tile is used on the surface of the outer wall of a military building by the camouflage method, so that the military building is fused with the surrounding environment. Through exclusive customized design and construction of digital imitation camouflage ceramic tile camouflage of the roof and the outer wall of the target building, organic integration of the target building and the surrounding environment is realized, the recognition degree of satellite visible optical reconnaissance of the target building is obviously reduced, and a better camouflage effect is achieved. The ceramic tile material with the characteristic colors of the digital imitation camouflage color has different components and colors, and has different heat absorption capacities under the sunshine condition, so that the ceramic tile material has a certain infrared camouflage function.

compared with the prior art, the invention has the following beneficial effects:

the invention develops a digital imitation camouflage color ceramic tile building roof and outer wall camouflage method with strong environmental adaptability based on the imitation camouflage color camouflage theory. Collecting the characteristic color of a background area of a target building by adopting a mode of simulating satellite reconnaissance detection by an unmanned aerial vehicle, field detection by a field color difference meter or a combination of two detection modes; analyzing and processing the data through a computer, simulating and making the colors and patterns of the digital imitation camouflage of the outer wall and the roof of the target building, the percentage of tiles of various colors and other camouflage schemes, and drawing the digital imitation camouflage tile camouflage construction drawing of the roof and the outer wall surface of the target building; then, the organic connection of design, production and construction is realized through a coding technology, and the production and the construction are carried out according to a design drawing; the building outer wall surface after being camouflaged by the digital imitation camouflage color ceramic tiles has excellent quality characteristics of good durability, waterproofness and the like, and simultaneously forms a novel building outer wall veneering material camouflaging system which is highly integrated with the surrounding environment and has lower satellite visible optical reconnaissance recognition degree and a certain infrared camouflage function, thereby solving the series problems and the defects of the existing camouflage color coating and the common camouflage color ceramic tile camouflaging.

The environment-adaptive digital imitation camouflage ceramic tile camouflage method and the application thereof can effectively improve the camouflage effect of military facility buildings and structures, improve the harmony between battlefield facilities and surrounding natural environments in the aspects of color patterns, brightness distribution and the like, enable the military buildings to be highly fused with the surrounding environment, landforms, vegetation and the like, and achieve good camouflage effect.

Drawings

fig. 1 is a schematic diagram of a target during aerial detection.

Fig. 2 is a schematic diagram of dividing a background area of a target building during ground detection.

Fig. 3 is a pixel histogram of the homogenized gray scale image of the target building background.

Fig. 4 is a schematic diagram of the homogenized gray scale image of the target building background.

Fig. 5 is a schematic diagram of the target building background pattern after the speckle contour extraction process.

Fig. 6 is an illustration diagram of four-digit encoding adopted when the digital imitation camouflage color tile is laid.

fig. 7 is an illustration of twelve coding steps used in packaging and warehousing of the digital imitation camouflage color ceramic tiles.

FIG. 8 is a schematic view of the design of the digital camouflage pattern on the outer wall of the target building when the method is applied.

FIG. 9 is a gray-scale image of a thermal image of a target building, which is an application example of the environment-adaptive digital camouflage color ceramic tile camouflage method.

Detailed Description

the present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.