阅读说明：本技术 一种像素级多光谱与像素级多偏振态探测分辨率增强技术 (Pixel-level multispectral and pixel-level multi-polarization detection resolution enhancement technology ) 是由 孟森 李冯帆 杨丹丹 李丹 于 2020-05-19 设计创作，主要内容包括：本发明涉及光学多光谱、多偏振态探测领域领域,具体公开了一种像素级多光谱与像素级多偏振态探测分辨率增强技术,包括标准光学系统、安装有可动光学镜头的二维压电高速高精度微扫描平台或FSM系统、可动光学镜头数据连接的探测器、上位机、高频信号控制器和图像算法处理器。本发明在原有像素级多光谱与多偏振光学探测系统中,引入一个高精度平面微扫描平台,将光学系统中某一透镜或将探测器直接固定于微动平台上,微扫描平台带动透镜运动在像面上产生1个整像素的位移,扫描模式依据滤光片宏像素确定,微扫描平台到达稳定位置,探测器开始曝光并输出多通道光谱或偏振态低分辨率图像,周期循环,获取多通道光谱或偏振态低分辨率图像序列。(The invention relates to the field of optical multi-spectrum and multi-polarization detection, and particularly discloses a pixel-level multi-spectrum and pixel-level multi-polarization detection resolution enhancement technology. The invention introduces a high-precision plane micro-scanning platform in the original pixel-level multispectral and multi-polarization optical detection system, a certain lens in the optical system or a detector is directly fixed on a micro-motion platform, the micro-scanning platform drives the lens to move to generate 1 whole pixel displacement on an image surface, the scanning mode is determined according to an optical filter macro-pixel, the micro-scanning platform reaches a stable position, the detector starts to expose and outputs a multi-channel spectrum or polarization state low-resolution image, and the multi-channel spectrum or polarization state low-resolution image sequence is obtained through periodic circulation.)

1. A pixel-level multispectral and pixel-level multi-polarization state detection resolution enhancement technology comprises a standard optical system, a two-dimensional piezoelectric high-speed high-precision micro-scanning platform or an FSM system provided with a movable optical lens, a detector in data connection with the movable optical lens, an upper computer, a high-frequency signal controller and an image algorithm processor, and is characterized in that the two-dimensional piezoelectric high-speed high-precision micro-scanning platform is a two-dimensional horizontal displacement or two-axis rotating mechanism based on piezoelectric drive, and the movable optical lens is physically connected with the two-dimensional piezoelectric high-speed high-precision micro-scanning platform; the movable optical lens is in data connection with the detector, and refracts light rays emitted by the standard optical system, so that imaging on the detector is deviated; the detector is connected with a data interface of the image algorithm processor, original data image data obtained by the detector are transmitted into the image algorithm processor through a transmission link, and the image algorithm processor restores the resolution of the image data; the image algorithm processor is in data connection with a display, and transmits image data to the display through a data transmission link for image data output; the control end of the two-dimensional piezoelectric high-speed high-precision micro scanning platform is in data connection with the high-frequency signal controller, and the control end of the upper computer is in data connection with the high-frequency signal controller.

2. The pixel-level multispectral and pixel-level multi-polarization detection resolution enhancement technique of claim 1, wherein: the detector is integrated with a pixel-level multispectral optical filter or a pixel-level multi-polarization optical filter.

3. A pixel-level multispectral and pixel-level multi-polarization detection resolution enhancement technique according to claim 1 or 2, wherein: the scanning mode of the two-dimensional piezoelectric high-speed high-precision micro scanning platform needs to be synchronously executed with the exposure time of a detector and is matched with the frame frequency of the detector; the specific operation steps for enhancing the multispectral and pixel-level multi-polarization detection resolution are as follows:

s1: starting and controlling an upper computer to generate a micro-scanning command signal waveform;

s2: the upper computer sends a command signal to the high-frequency signal controller;

s3: the high-frequency signal controller receives a command signal from an upper computer, inputs and amplifies the command signal, and outputs the command signal to the two-dimensional piezoelectric high-speed high-precision micro scanning platform through data transmission, and the two-dimensional piezoelectric high-speed high-precision micro scanning platform performs micro-displacement motion to generate integral displacement of 1 pixel on an image plane;

s4: after the two-dimensional piezoelectric high-speed high-precision micro scanning platform finishes scanning and reaches a stable position, the detector starts exposure;

s5: after exposure is finished, the camera outputs a multi-channel spectrum or a polarization state low-resolution image;

s6: and repeating the steps S1-S5, and periodically circulating to acquire a multi-channel spectrum or polarization state low-resolution image sequence.

4. The pixel-level multispectral and pixel-level multi-polarization detection resolution enhancement technique of claim 4, wherein: the micro-scanning mode of the scanning platform is matched with the number of multispectral or multi-polarization channels, for example, 4 channels, and the micro-scanning mode is 2 multiplied by 2; 9 channels, wherein the micro scanning mode is 3 multiplied by 3; 16 channels, wherein the micro scanning mode is 4 multiplied by 4, and so on; each micro-scan step is 1 pixel.

5. The pixel-level multispectral and pixel-level multi-polarization detection resolution enhancement technique of claim 4, wherein: the original resolution of the detector is restored by the image processing mode, and micro scanning is carried out through a two-dimensional piezoelectric high-speed high-precision micro scanning platform, so that pixels of different channels of the detector sample the same spatial position for multiple times at a high speed, and a multi-channel image of the same object point is constructed; the pixels of a certain channel of the image plane detector are subjected to multiple sequence sampling at different integral pixel spatial positions through micro scanning, so that the resolution image of the original detector of the same channel can be reconstructed, and the original resolution of the detector is restored; and re-projecting the low-resolution original image sequence into a detector original resolution grid according to the frame sequence and the sampling position, reconstructing a detector original resolution multispectral image and a multi-polarization state image to obtain an image with high resolution of each channel, and performing disassembly and recombination on each macropixel according to the spectrum or the polarization state to form a plurality of images under the same spectrum or the same polarization state.

Technical Field

The invention relates to the technical field of optical multispectral and multi-polarization detection, in particular to a pixel-level multispectral and pixel-level multi-polarization detection resolution enhancement technology.

Background

Since the end of the last century, in order to further improve the integration and real-time performance of multispectral and multi-polarization optical detection systems, a multispectral and multi-polarization optical detection system technology based on a pixel-level optical filter technology appears, and the multispectral and multi-polarization optical detection system technology mainly comprises a pixel-level multispectral or multi-polarization state matrix optical filter, an optical detector, an optical system and a display system. On the basis of not changing an optical system, multispectral multi-polarization state detection can be realized by only encapsulating a pixel-level multispectral or multi-polarization state matrix filter in front of a detector (as shown in fig. 5).

The pixel-level multispectral or multi-polarization matrix filter technology can enable each pixel to have independent spectrum or polarization state detection capability, so that the optical detection system has multispectral or multi-polarization state imaging capability. The number of detectable spectral channels or the number of multi-polarization state channels is the same as the number of unit Micro-filter structures contained in a macro-pixel (Micro-pixel) of the detector, namely the number of spectral or polarization state channels contained in the macro-pixel.

Description of pixel-level multispectral or multi-polarization state matrix filters:

1: one filter typically consists of multispectral or multi-polarized macropixels made up of a set of 2X2, 3X3, 4X4 pixel-level microstructures that replicate the planar 2D structure made up in the plane X-direction, the Y-direction. Each macro-pixel comprises a micro-filter structure with 4 units, 9 units, 16 units or more, and each micro-filter structure unit is an independent spectrum or polarization channel. The spectrum and polarization performance of each channel are independent.

2: the size of each micro-filtering structure is the same as that of a pixel of the detector, and the distance between each micro-filtering structure forming the independent channel is the same as that of the pixel.

3: the pixel-level multispectral or multi-polarization state matrix optical filter is required to be directly and tightly arranged in front of a detector pixel, the optical filter corresponds to the pixel significance, and light is ensured to be directly received by the detector unit pixel behind the optical filter after passing through each micro optical filter structural unit which is an independent spectrum or polarization channel.

After the detector is combined with the pixel-level multispectral or multi-polarization state matrix optical filter, the detection pixel matrix is covered by the optical filter macropixel, so that the resolution of the spectral detection image of a single channel is the original pixel number of the detector/the spectral channel number or the polarization channel number in the unit matrix.

If the original detector resolution of the detector is 100 ten thousand pixels, that is, 1000 x 1000, and after a 4-channel pixel-level multispectral or optical filter technology with 2x2 macro pixels is adopted, the image resolution of the detection system for a single spectral channel or a single polarization state channel is 25 ten thousand pixels, that is, 500x500, and the resolution capability is reduced by 4 times. Therefore, the pixel-level multispectral and multi-polarization optical detection technology is essentially a detection technology which sacrifices the spatial resolution of the detector and improves the number of spectral channels and polarization channels. For a detector with lower original resolution, the pixel-level multispectral and multi-polarization optical detection technology is adopted, so that the image resolution is greatly reduced, and the multispectral and multi-polarization detection efficiency cannot be exerted.

In addition, the spectral channels and the pixel channels in the pixel-level multispectral or multi-polarization state matrix filter macropixel have one-to-one spatial relationship, so that when the number of the channels is large, the spatial interval between the channels is easy to reproduce and is large. When a pixel-level multispectral and multi-polarization optical detection system is used for long-distance observation or large-field observation, since different channels may detect different objects, there is a possibility that the multispectral or multi-polarization state of the same object may be distorted when the multispectral or multi-polarization state is detected.

Disclosure of Invention

The present invention provides a pixel-level multispectral and pixel-level multi-polarization detection resolution enhancement technique to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a pixel-level multispectral and pixel-level multi-polarization state detection resolution enhancement technology comprises a standard optical system, a two-dimensional piezoelectric high-speed high-precision micro-scanning platform or an FSM (finite state machine) system (the scanning platform can be divided into a translation platform and a rotation platform, and the FSM is a device specifically realized by the rotation platform), a detector in data connection with a movable optical lens (the detector is not physically connected with the micro-scanning platform, the micro-scanning platform is only used for moving a certain lens, the optical axis can be deflected through the moved lens, the position of the center of the optical axis on the detector is changed, and a figure 2 can be referred to), an upper computer, a high-frequency signal controller and an image algorithm processor; the two-dimensional piezoelectric high-speed high-precision micro-scanning platform is a two-dimensional horizontal displacement or two-axis rotating mechanism based on piezoelectric driving, and the movable optical lens is physically connected with the two-dimensional piezoelectric high-speed high-precision micro-scanning platform (a lens is clamped in the middle of the two-dimensional displacement platform and is fixed through glue or screws); the movable optical lens is in data connection with the detector, and refracts light rays emitted by the standard optical system, so that imaging on the detector is deviated; the detector is connected with a data interface of the image algorithm processor, original data image data obtained by the detector is transmitted to the image algorithm processor through a transmission link (the detector is physically connected with the image algorithm processor through a professional video data transmission interface, including but not limited to DVI, Cameralink, PCIE and SDI), and the image algorithm processor is used for carrying out resolution reduction on the image data; the image algorithm processor is connected with a display through data, and the image algorithm processor (the control box of the image algorithm processor is a PROD184TX-1K embedded image processor self-developed by Shanghai -realty Co., Ltd.) transmits image data to the display through a data transmission link for image data output; the control end of the two-dimensional piezoelectric high-speed high-precision micro-scanning platform is in data connection with a high-frequency signal controller (a control box of the two-dimensional piezoelectric high-speed high-precision micro-scanning platform is a high-frequency signal controller which is a PROD185XY-CCBU miniaturized high-frequency controller self-developed by Shanghai -realty Co., Ltd.), and the control end of the upper computer is in data connection with the high-frequency signal controller.

As a preferred embodiment of the present invention, the two-dimensional piezoelectric high-speed high-precision micro scanning platform drives the movable optical lens to generate a displacement of 1 whole pixel on the image plane.

As a preferred aspect of the present invention, the detector is a detector integrated with a pixel-level multispectral filter or a pixel-level multispectral filter.

As a preferred scheme of the invention, the scanning mode of the two-dimensional piezoelectric high-speed high-precision micro scanning platform needs to be synchronously executed with the exposure time of a detector and is matched with the frame frequency of the detector; the specific operation steps for enhancing the multispectral and pixel-level multi-polarization detection resolution are as follows:

s1: starting and controlling an upper computer to generate a micro-scanning command signal waveform (as shown in fig. 4);

s2: the upper computer sends a command signal to the high-frequency signal controller;

s3: the high-frequency signal controller receives a command signal from an upper computer, inputs and amplifies the command signal, and outputs the command signal to the two-dimensional piezoelectric high-speed high-precision micro scanning platform through data transmission, and the two-dimensional piezoelectric high-speed high-precision micro scanning platform performs micro-displacement motion to generate integral displacement of 1 pixel on an image plane;

s4: after the two-dimensional piezoelectric high-speed high-precision micro scanning platform finishes scanning and reaches a stable position, the detector starts exposure;

s5: after exposure is finished, the camera outputs a multi-channel spectrum or a polarization state low-resolution image;

s6: and repeating the steps S1-S5, and periodically circulating to acquire a multi-channel spectrum or polarization state low-resolution image sequence.

As a preferred embodiment of the present invention, the micro-scanning mode of the scanning platform matches the number of multispectral or multi-polarization channels, for example, 4 channels, and the micro-scanning mode is 2 × 2; 9 channels, wherein the micro scanning mode is 3 multiplied by 3; 16 channels, wherein the micro scanning mode is 4 multiplied by 4, and so on; each micro-scanning step is 1 pixel (as shown in fig. 2 and 3).

As a preferred scheme of the invention, the original resolution of the detector is restored by the image processing mode, and micro scanning is carried out by a two-dimensional piezoelectric high-speed high-precision micro scanning platform, so that pixels of different channels of the detector sample the same spatial position for multiple times at a high speed, and a multi-channel image of the same object point is constructed; the pixels of a certain channel of the image plane detector are subjected to multiple sequence sampling at different integral pixel spatial positions through micro scanning, so that the resolution image of the original detector of the same channel can be reconstructed, and the original resolution of the detector is restored; and (3) re-projecting the low-resolution original image sequence into a detector original resolution grid according to the frame sequence and the sampling position, reconstructing a detector original resolution multispectral image and a multi-polarization state image to obtain an image with high resolution of each channel, and performing disassembly and recombination on each macropixel according to the spectrum or the polarization state to form a plurality of images under the same spectrum or polarization state (the image processing mode is as shown in the following figure 6).

Compared with the prior art, the invention has the beneficial effects that:

the invention introduces a high-precision plane micro-scanning (displacement) platform in the original pixel-level multispectral and multi-polarization optical detection system, fixes a certain lens in the optical system on a micro-motion platform or directly fixes a detector on the micro-motion platform, drives the lens to move through the micro-scan platform to generate the displacement of 1 whole pixel on an image surface, the scanning mode is determined according to an optical filter macro-pixel (the scanning mode refers to that the scanning platform moves up and down, left and right, drives the lens arranged on the scanning platform to move up and down, left and right, and simultaneously the imaging point of a light path on the target surface of the detector also moves up and down, left and right, wherein the displacement of each step of the imaging point on the target surface of the detector is 1 pixel), and the detector starts to expose after the scanning of the two-dimensional piezoelectric high-; after exposure is finished, the camera outputs a multi-channel spectrum or polarization state low-resolution image, and the multi-channel spectrum or polarization state low-resolution image sequence is obtained through periodic circulation, so that multi-spectrum or multi-polarization state detection is realized under the condition that the original resolution of the detector is not reduced; the multispectral and multi-polarization detection efficiency is greatly improved; the distortion caused by insufficient resolution of the detector during long-distance observation or large-field observation is eliminated.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a side view of a micro-sweep pattern of the present invention;

FIG. 3 is a front view of a micro-sweep pattern of the present invention;

FIG. 4 is a schematic diagram of a micro-scanning command signal waveform generated by the host computer according to the present invention;

FIG. 5 is a schematic diagram of a prior art multi-spectral and multi-polarization optical detection system based on pixel-level filter technology;

fig. 6 is a schematic diagram of a high resolution image structure of multiple spectra or multiple polarization state channels according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-6, the present invention provides a technical solution: a pixel-level multispectral and pixel-level multi-polarization state detection resolution enhancement technology comprises a standard optical system, a two-dimensional piezoelectric high-speed high-precision micro-scanning platform or FSM system provided with a movable optical lens, a detector in data connection with the movable optical lens, an upper computer, a high-frequency signal controller and an image algorithm processor; the two-dimensional piezoelectric high-speed high-precision micro-scanning platform is a two-dimensional horizontal displacement or two-axis rotating mechanism based on piezoelectric drive, and the movable optical lens is physically connected with the two-dimensional piezoelectric high-speed high-precision micro-scanning platform; the movable optical lens is in data connection with the detector, and refracts light rays emitted by the standard optical system, so that imaging on the detector is deviated; the detector is connected with a data interface of the image algorithm processor, original data image data obtained by the detector is transmitted to the image algorithm processor through a transmission link (the detector is physically connected with the image algorithm processor through a professional video data transmission interface, including but not limited to DVI, Cameralink, PCIE and SDI), and the image algorithm processor is used for carrying out resolution reduction on the image data; the image algorithm processor is connected with a display through data, and the image algorithm processor (the control box of the image algorithm processor is a PROD184TX-1K embedded image processor self-developed by Shanghai -realty Co., Ltd.) transmits image data to the display through a data transmission link for image data output; the control end of the two-dimensional piezoelectric high-speed high-precision micro scanning platform is in data connection with the high-frequency signal controller, and the control end of the upper computer is in data connection with the high-frequency signal controller.

Furthermore, the two-dimensional piezoelectric high-speed high-precision micro-scanning platform drives the movable optical lens to generate displacement of 1 whole pixel on the image surface.

Furthermore, the detector is integrated with a pixel-level multispectral optical filter or a pixel-level multi-polarization optical filter.

Furthermore, the scanning mode of the two-dimensional piezoelectric high-speed high-precision micro scanning platform needs to be synchronously executed with the exposure time of the detector and is matched with the frame frequency of the detector; the specific operation steps for enhancing the multispectral and pixel-level multi-polarization detection resolution are as follows:

s1: starting and controlling an upper computer to generate a micro-scanning command signal waveform (as shown in fig. 4);

s2: the upper computer sends a command signal to the high-frequency signal controller;

s3: the high-frequency signal controller receives a command signal from an upper computer, inputs and amplifies the command signal, and outputs the command signal to the two-dimensional piezoelectric high-speed high-precision micro scanning platform through data transmission, and the two-dimensional piezoelectric high-speed high-precision micro scanning platform performs micro-displacement motion to generate integral displacement of 1 pixel on an image plane;

s4: after the two-dimensional piezoelectric high-speed high-precision micro scanning platform finishes scanning and reaches a stable position, the detector starts exposure;

s5: after exposure is finished, the camera outputs a multi-channel spectrum or a polarization state low-resolution image;

s6: and repeating the steps S1-S5, and periodically circulating to acquire a multi-channel spectrum or polarization state low-resolution image sequence.

Furthermore, the micro-scanning mode of the scanning platform is matched with the number of multispectral or multi-polarization channels, for example, 4 channels, and the scanning mode is 2 × 2; 9 channels, the scanning mode is 3 multiplied by 3; 16 channels, the scanning mode is 4 multiplied by 4, and so on; each scan step is 1 pixel (as shown in fig. 2 and 3).

Furthermore, the original resolution of the detector is restored in an image processing mode, and micro scanning is carried out through a two-dimensional piezoelectric high-speed high-precision micro scanning platform, so that pixels of different channels of the detector sample the same spatial position for multiple times at a high speed in sequence, and a multi-channel image of the same object point is constructed; the pixels of a certain channel of the image plane detector are subjected to multiple sequence sampling at different integral pixel spatial positions through micro scanning, so that the resolution image of the original detector of the same channel can be reconstructed, and the original resolution of the detector is restored; and (3) re-projecting the low-resolution original image sequence into a detector original resolution grid according to the frame sequence and the sampling position, reconstructing a detector original resolution multispectral image and a multi-polarization state image to obtain an image with high resolution of each channel, and performing disassembly and recombination on each macropixel according to the spectrum or the polarization state to form a plurality of images under the same spectrum or polarization state (the image processing mode is as shown in the following figure 6).

The working principle is as follows: a high-precision plane micro-scanning (displacement) platform is introduced into an original pixel-level multispectral and multi-polarization optical detection system, and a certain lens in the optical system is fixed on a micro-motion platform or a detector is directly fixed on the micro-motion platform. The micro scanning platform drives the lens to move to generate displacement of 1 whole pixel on the image surface, the scanning mode is determined according to the optical filter macro pixel, for example, a 2x2, 3x3 and 4x4 mode is adopted, and each micro scanning step is 1 whole pixel size (as shown in fig. 2 below).

For a reflection imaging system, a high-precision angle swinging micro-scanning Mirror (FSM) can also be introduced into the original pixel-level multispectral and multi-polarization optical detection system, the FSM performs high-speed scanning motion to generate displacement of 1 whole pixel on an image surface, and the scanning mode is determined according to the optical filter macropixel. If a 2x2, 3x3, 4x4 pattern is used, each micro-sweep step is 1 full pixel size (see FIG. 3 below).

Both the translational scanning and the angular oscillatory scanning need to be performed synchronously with the detector exposure time. The process is as follows:

s1: starting and controlling an upper computer to generate a micro-scanning command signal waveform (as shown in fig. 4);

s2: the upper computer sends a command signal to the high-frequency signal controller;

s3: the high-frequency signal controller receives a command signal from an upper computer, inputs and amplifies the command signal, and outputs the command signal to the two-dimensional piezoelectric high-speed high-precision micro scanning platform through data transmission, and the two-dimensional piezoelectric high-speed high-precision micro scanning platform performs micro-displacement motion to generate integral displacement of 1 pixel on an image plane;

s4: after the two-dimensional piezoelectric high-speed high-precision micro scanning platform finishes scanning and reaches a stable position, the detector starts exposure;

s5: after exposure is finished, the camera outputs a multi-channel spectrum or a polarization state low-resolution image;

s6: and repeating the steps S1-S5, and periodically circulating to acquire a multi-channel spectrum or polarization state low-resolution image sequence.

Pixels of different channels of the image plane detector sample the same spatial position for multiple times in sequence at high speed through micro scanning, and therefore a multi-channel image of the same object point is constructed. The pixels of a certain channel of the image plane detector are subjected to multiple sequence sampling at different integral pixel spatial positions through micro scanning, so that an original detector resolution image of the same channel can be reconstructed, and the original resolution of the detector is restored. And (3) re-projecting the low-resolution original image sequence into a detector original resolution grid according to the frame sequence and the sampling positions, and reconstructing a detector original resolution multispectral image and a multi-polarization state image (the image processing mode is as shown in the following figure 6).

The invention introduces a high-precision plane micro-scanning (displacement) platform in the original pixel-level multispectral and multi-polarization optical detection system, fixes a certain lens in the optical system on the micro-motion platform or directly fixes a detector on the micro-motion platform, drives the lens to move through the micro-scanning platform to generate the displacement of 1 whole pixel on an image surface, the scanning mode is determined according to the optical filter macro-pixel, and the detector starts to expose after the two-dimensional piezoelectric high-speed high-precision micro-scanning platform finishes scanning and reaches a stable position; after exposure is finished, the camera outputs a multi-channel spectrum or polarization state low-resolution image, and the multi-channel spectrum or polarization state low-resolution image sequence is obtained through periodic circulation, so that multi-spectrum or multi-polarization state detection is realized under the condition that the original resolution of the detector is not reduced; the multispectral and multi-polarization detection efficiency is greatly improved; the distortion caused by insufficient resolution of the detector during long-distance observation or large-field observation is eliminated.

The micro-motion mechanism of the two-dimensional piezoelectric high-speed high-precision micro-scanning platform adopts a PROD186XY-ST micro-motion translation platform or a PROD186DTT-SI angular swing platform which is self-developed by Shanghai -realty company Limited, and drives a lens or a reflector by using a two-axis piezoelectric actuator so that the optical axis of an optical system generates displacement of 1 pixel on a focal plane.

It is worth noting that: the whole device realizes control over the device through the control box, and because the equipment matched with the control box is common equipment, the device belongs to the existing mature technology, and the electrical connection relation and the specific circuit structure are not repeated herein.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.