阅读说明：本技术 一种用于实时采集膳食摄入信息的方法 (A method of for acquiring dietary int ake information in real time ) 是由 成果 段若男 冯萍 于 2019-08-26 设计创作，主要内容包括：本发明公开了一种实时采集膳食摄入信息的方法：在光线充足的地方将网格背景图平铺于水平桌面；将调查对象平常摄入量的食物放入到标准餐具内,再将盛有食物的标准餐具摆放在网格背景图；进餐前、后用智能摄像设备分别从正上方、侧方、前斜上方和后斜上方四个方向对膳食进行摄像；通过“膳食助手”微信小程序,向后台专业评估人员传送调查对象的基本信息和进餐膳食信息；由后台专业人员根据膳食图像和食物原料及烹调方法对调查对象膳食中各种食物的摄入情况进行估量。本发明能节约被调查人群的时间、提高被调查人群的配合度,同时能保证所采集膳食信息的及时性、完整性和准确性。(The invention discloses a kind of methods of dietary int ake information of acquisition in real time: grid Background being laid in horizontal table top in bright and clear place；The food of the usual intake of respondent is put into standard tableware, then the standard tableware for filling food is placed in grid Background；Have meal it is forward and backward with intelligent camera apparatus respectively from surface, side, preceding oblique upper and retread top four direction diet is imaged；By " diet assistant " wechat small routine, Xiang Houtai expert panelist transmits the essential information and dining dietary information of respondent；The intake situation of various foods in respondent's diet is estimated according to diet image and food material and cooking method by backstage professional.The present invention can save the time of respondent group, improve the fitness of respondent group, while can guarantee the timeliness, integrality and accuracy of acquired dietary information.)

1. a kind of method of the dietary int ake information of acquisition in real time, it is characterised in that the following steps are included:

(1) bright and clear place is selected, horizontal table top, the net will be laid in by the grid Background of scale of length unit Label has the station location marker of standard tableware on lattice Background；

(2) food of the usual intake of respondent is put into standard tableware, then the standard tableware for filling food is put The standard tableware placement location marked on the grid Background；

(3) before respondent has meal and starts, with intelligent camera apparatus respectively from surface, side, preceding oblique upper and on retreading Square four direction images diet food, shoots the image for making tableware and food all enter mirror；

(4) after respondent has meal, shooting image is carried out according to the method for step (3)；

(5) by " diet assistant " wechat small routine, Xiang Houtai expert panelist transmit respondent include name, the age, Essential information including gender；Corresponding food material and cooking method in meal time and end time and each tableware； Preceding at least 8 images with 4 angles after dining of dining；

(6) after backstage professional receives diet image, according to diet image and food material and cooking method, in conjunction with preparatory system Fixed evaluation of food reference map, estimates the intake situation of various foods in respondent's diet, and for the later period Dietary Assessment and guidance.

2. the method for real-time acquisition dietary int ake information according to claim 1, which is characterized in that from surface, camera shooting is adopted Taking keeps picture pick-up device camera lens parallel with desktop, and apart from desktop about 40~45cm, grid Background is made all to enter mirror.

3. the method for real-time acquisition dietary int ake information according to claim 1, which is characterized in that from positive side, camera shooting is adopted Taking makes picture pick-up device camera lens and vertical, and apart from grid Background outline border about 25~30cm, guarantees that tableware and food are whole Enter mirror.

4. the method for real-time acquisition dietary int ake information according to claim 1 in the past, which is characterized in that top of retreading is taken the photograph Make picture pick-up device lens axis and as the table plane of X-Y plane and with the table vertical plane as X-Z plane at 40~50 as taking⁰ Angle makes tableware and food all enter mirror apart from desktop about 40~45cm.

5. according to claim 1 to the method for real-time acquisition dietary int ake information described in one of 4, which is characterized in that the net Lattice Background is the rectangular mesh Background of papery.

6. the method for real-time acquisition dietary int ake information according to claim 5, which is characterized in that the grid Background There are two types of specifications, the first is the grid Background of 50cm × 40cm standard edition, second of net for 22cm × 22cm portable version Lattice Background.

7. the method for real-time acquisition dietary int ake information according to claim 6, which is characterized in that the net of the standard edition Label has the station location marker for placing tableware on lattice Background, and heel row is marked with both sides and places placement dinnerware cup among tableware bowl Station location marker, front row label there are two place plate-rack station location marker；There is label on the grid Background of the portable version The mark of plate-rack, bowl, cup can be placed respectively in the same position.

8. according to claim 1 to the method for real-time acquisition dietary int ake information described in one of 4, which is characterized in that work as investigation It when the type of object food is more than the tableware station location marker quantity marked on grid Background, takes and images in batches, until by institute There is the food of type all to image, uploads together.

9. according to claim 1 to the method for real-time acquisition dietary int ake information described in one of 4, which is characterized in that " the meals Food assistant " wechat small routine composition includes, for fill in include at least name, the age, gender essential information login interface；With In filling in dietary information circle of corresponding food material and cooking method in meal time and end time and each tableware Face；Upload at least 8 images before having meal with 4 angle shots after dining；" submission " is clicked to complete.

10. according to claim 1 to the method for real-time acquisition dietary int ake information described in one of 4, which is characterized in that real-time Following preparation is carried out before acquisition dietary int ake information:

Intelligent image for diet image picture being imaged, being obtained striograph picture acquires equipment；

For collecting respondent's essential information and corresponding dietary information, to " the meals for obtaining image picture progress real-time Transmission Eat assistant " wechat small routine；

For containing the standard tableware of food；

For it is that tableware diameter and prey size are labeled, using length unit as the grid Background of scale；

For instructing respondent to record the video and specification of dietary information；

The reference map assessed for the intake to various foods in diet image.

Technical field

The invention belongs to novel dietary survey method and technology fields, and in particular to one kind for acquiring dietary int ake in real time The method of information.

Background technique

With the transformation of socio-economic development and life style, hypertension, diabetes, cardiovascular disease chronic diseases are As the main problem for threatening China's residents ' health.Existing research show diet structure it is unreasonable be that chronic disease is caused to be sent out One important risk factor of exhibition.It is quasi- to reach prevention disease, sanatory purpose for balanced diet, adequate nutrition Really, the dietary int ake information and then science for efficiently collecting people comprehensively evaluate its Dietary Quality, for the pre- of various diseases Prevent and controls particularly critical.

Currently, for crowd's dietary information acquisition method mainly have weight method, book keeping operation method, 24 hours dietary recall methods, Food Frequency method, chemical analysis etc..Wherein, weight method is most accurate method in crowd's dietary survey, but this method needs It takes a substantial amount of time and energy, is not easy to be received by respondent；In addition, weight method is also possible to meeting to surveyee's Eating habit impacts, and generates bias.24 hours dietary recall methods are the most frequently used in dietary survey in current large sample crowd Method, but this method needs the memory by surveyee to describe diet, is easy to exist and fails to report, reports by mistake or estimate error Larger problem.Food Frequency method is mainly used for collecting the intake frequency that respondent goes over various foods in longer period of time Rate and intake further obtain the average intake of individual long-term food and nutrient according to intake frequency and each amount Situation, but since the food entry in Food frequency questionnaire is mostly representative of the researcher according to its research purpose subjective selection Property food, therefore when calculating using Food Frequency method the daily ingestion of energy and nutrient of respondent, over-evaluate or underestimates Phenomenon is more serious.It is worth noting that, 24 hours dietary recall methods and Food Frequency method belong to retrospective dietary survey side Method, needs the memory capability by investigator, and most of surveyee is due to lacking the cognition to food weight, is difficult pair Its food weight taken in makes accurate estimation.Therefore, when carrying out retrospective dietary survey, it is often necessary to by having received The professional investigation person of training completes, while also needing that respondent is assisted by some INVENTIONFood molds or food map to return Recall the title and quantity of various foods, this increases the difficulty and complexity of dietary survey work to a certain extent.Cause This, develops a kind of easy, efficient dietary information acquisition method, to realize that the time for saving respondent group, raising are investigated The fitness of crowd, while guaranteeing the timeliness, integrality and accuracy of acquired dietary information, further to its diet matter Amount carries out science, objective assessment, is the critical issue that current field of nutrition needs to solve.

In conclusion the dietary information acquisition method of the prior art there are the problem of, not only to expend a large amount of manpower and Material resources, targeted crowd is relatively limited, and (cognition of children and the elderly or memory capability are limited, need the side by other people Helping could complete), the phenomenon that being also frequently accompanied by dietary int ake wrong report and fail to report, cause dietary information collected to lack complete Property and accuracy, be easy influence later period dietary int ake assessment and guidance.

Summary of the invention

Status and deficiency, the purpose of the present invention for the dietary information acquisition technique of the prior art are intended to provide one kind The new method for acquiring crowd's dietary int ake information, to realize the time for saving respondent group, raising respondent group Fitness, while guaranteeing the timeliness, integrality and accuracy of acquired dietary information, so as to further to its diet matter Amount carries out science, objective assessment.

Method provided by the present invention for acquiring dietary int ake information in real time, mainly comprises the steps that

(1) bright and clear place is selected, horizontal table top will be laid in by the grid Background of scale of length unit, Label has the station location marker of standard tableware on the grid Background；

(2) food of the usual intake of respondent is put into standard tableware, then the standard tableware that food will be filled It is placed in the standard tableware placement location marked on the grid Background；Standard tableware includes the disk, bowl, cup of standard.

(3) respondent have meal start before, with intelligent camera apparatus respectively from surface, side, preceding oblique upper and after Oblique upper four direction images diet, shoots the image for making tableware and food all enter mirror；Intelligent camera apparatus is preferential Using smart phone.

(4) after respondent has meal, shooting image is carried out according to the method for step (3).

(5) by " diet assistant " wechat small routine, it includes its surname that Xiang Houtai expert panelist, which transmits respondent, Essential information including name, age, gender；In meal time and end time and each tableware corresponding food material and Cooking method；At least 8 images shot before having meal and after having meal in 4 directions.

(6) after backstage professional receives diet image, according to diet image and food material and cooking method, in conjunction with The evaluation of food reference map pre-established, estimates the intake situation of various foods in respondent's diet, and be used for The Dietary Assessment and guidance in later period.

It in above-mentioned technical proposal of the invention, is imaged from surface, preferably taking keeps picture pick-up device camera lens and desktop flat Row, and apart from desktop about 40~45cm, so that grid Background is all entered mirror；It is imaged from positive side, preferentially taking makes picture pick-up device Camera lens and vertical, and apart from grid Background outline border about 25~30cm, guarantee that tableware and food all enter mirror；From front and back Oblique upper camera shooting, preferentially take make picture pick-up device lens axis with as X-Y plane table plane and with as X-Z plane Table vertical plane makes tableware and food all enter mirror at 40~50 ° of angles apart from desktop about 40~45cm.It is imaged from preceding oblique upper With from top camera shooting of retreading, the two is respectively using parallel not deskmate vertical plane as measuring basis.

In above-mentioned technical proposal of the invention, in order to reduce cost of manufacture, the grid Background preferentially selects papery Rectangular mesh Background.Certainly, in order to improve reusability, the rectangular mesh background of plastic film material can also be used The rectangular mesh Background of figure or other materials.

In above-mentioned technical proposal of the invention, in order to adapt to varying environment condition, the grid Background be may be designed to Two kinds of specifications, the first specification are the grid Background of 50cm × 40cm standard edition, and second of specification is that 22cm × 22cm is portable The grid Background of version.

It is regular in order to place standard tableware in above-mentioned technical proposal of the invention, convenient for shooting image, for institute The grid Background of standard edition is stated, label has the station location marker for placing tableware, the station location marker of heel row on grid Background It is the mark that both sides are placement tableware bowl, centre is the mark for placing dinnerware cup, and front-seat station location marker is two placement tablewares The mark of disk；For the grid Background of the portable version, on grid Background, position is identified as goes out in the same position mark The mark of plate-rack, bowl, cup can be placed respectively.

It is more for the type of respondent's diet food in above-mentioned technical proposal of the invention, and carried on the back more than grid The tableware station location marker quantity marked on scape figure, can take and image in batches, and the food of all kinds is all imaged, together on It passes.

In above-mentioned technical proposal of the invention, " diet assistant " the wechat small routine, composition includes: for filling out Write including at least name, the age, gender essential information login interface；For filling in meal time and end time, and it is every The dietary information interface of corresponding food material and cooking method in a tableware；Upload 4 angle shots after having meal preceding and dining At least 8 images；" submission " is clicked to complete.

Acquisition dietary int ake information need to carry out following preparation in real time:

Intelligent image for diet image picture being imaged, being obtained striograph picture acquires equipment, general to select Smart phone；

For collecting respondent's essential information and corresponding dietary information, real-time Transmission is carried out to image picture is obtained " diet assistant " wechat small routine；

For containing the standard tableware of food, the disk, bowl and cup of standard are generally comprised；

For it is that tableware diameter and prey size are labeled, using length unit as the grid Background of scale；

For instructing respondent to record the video and specification of dietary information；Preferentially use papery specification；

The reference map assessed for the intake to various foods in diet image.

Method provided by the present invention for acquiring dietary int ake information in real time, has the advantages that:

(1) present invention utilizes now widely used smart phone, can carry out high quality note to the dietary int ake of crowd Record, and dietary information real-time Transmission can be given to backstage professional, dietary information acquisition is very convenient, improves diet Information collection efficiency and accuracy.

(2) method of real-time acquisition dietary int ake information provided by the invention, the collection in worksite of dietary int ake information can be by It is completed by respondent oneself, this can not only mitigate the memory burden of respondent, the fitness of respondent is improved, The time and efforts that investigator goes to scene can also be saved simultaneously.In addition, objectively diet image picture can reduce it is traditional Phenomenon is failed to report and reported by mistake present in retrospective dietary survey method, keeps the dietary information obtained more true, reliable.

(3) traditional dietary survey method only collects investigation due to that need to expend a large amount of human and material resources and time mostly Dietary information in object short-term (acquires the continuous one week dietary information of respondent, 24 hours diets as weight method Retrospective studies generally acquires the dietary information of respondent for three days on end), it cannot reflect that seasonal variations, eating habit change etc. cause Dietary int ake change, and the present invention can record the meals in respondent's longer period of time due to its convenience and high efficiency Food intake situation, thus its collected dietary information has stronger representativeness.

Detailed description of the invention

Fig. 1 is for diet Image Real-time Transmission " diet assistant " wechat small routine figure；

Fig. 2 is the standard tableware figure for containing food；

Fig. 3-1 is standard edition grid Background, and Fig. 3-2 is portable version grid Background；

Fig. 4-1 to Fig. 4-4 is the specification for instructing respondent to record dietary information；

Fig. 5-1 to Fig. 5-4 is to instruct respondent from the demonstration graph of four direction shooting diet, on wherein Fig. 5-1 is positive Side's shooting, Fig. 5-2 are side shooting, and Fig. 5-3 is the shooting of 40~50 ° of preceding oblique upper；Fig. 5-4 is 40~50 ° of top bat of retreading It takes the photograph；

Fig. 6 is the reference map citing assessed for the intake to various foods in diet image.

Fig. 7-1 to Fig. 7-4 is the image that embodiment shoots the diet before respondent's dining from four direction；

Fig. 8-1 to Fig. 8-4 is the image that embodiment shoots the diet after respondent's dining from four direction；

Fig. 9 is " diet assistant " login interface.

Figure 10 is embodiment dietary information User Interface.

Specific embodiment

The present invention is specifically described below by embodiment, but it is necessarily pointed out that, embodiment is only used In invention is further explained, it should not be understood as limiting the scope of the invention, person skilled in art's root Making some nonessential modifications and adaptations to carry out specific implementation according to the content of aforementioned present invention is to be not required to make the creative labor , protection scope of the present invention should be still fallen within.