A camera supporting an anisokinetic image shift compensation function, an anisokinetic image shift imaging compensation method

Abstract

The application provides a camera supporting an allometric image migration compensation function and an allometric image migration compensation method. The camera comprises a camera lens, an electronic shutter, a shutter controller, a light measurement module, a lookup table module and a detector module supporting the allometric image migration compensation function. The lookup table module is used for looking up and comparing light value data and determining an electronic shutter exposure time, a shutter width and a shutter speed. The detector module supporting the allometric image migration compensation function is used for converting light signals collected by the camera lens into electrical signals and simultaneously performing electronic allometric image migration compensation according to the electronic shutter exposure time, the shutter width, the shutter speed and task parameters. The camera supporting the allometric image migration compensation function of the application overcomes the defect that the existing aerial camera does not have a compensation function. Moreover, the camera supporting the allometric image migration compensation function of the application can realize aerial allometric image migration compensation without additionally increasing system hardware devices and can reduce the quality, volume, power consumption and cost of an imaging system.

Description

Technical Field

[0001] This invention relates to the field of aerospace technology, and in particular to a camera that supports allometric image shift compensation and an allometric image shift imaging compensation method. Background Technology

[0002] During reconnaissance operations, reconnaissance aircraft need to fly at high speed and low altitude to evade enemy radar surveillance. Low-altitude, high-speed flight significantly improves the aircraft's battlefield survivability and deep reconnaissance and surveillance capabilities. However, this causes severe image shift on the target surface of aerial imaging, resulting in blurred aerial images and affecting the effectiveness of aerial reconnaissance. Furthermore, during forward flight, adjustments to the aircraft's attitude (such as side-flying) or the pitch angle of the aerial camera lens can cause the aerial camera to be in a certain position... Figure 1 The oblique viewing working state is shown. A schematic diagram on the target surface is shown below. Figure 2 As shown, its characteristic is that the image movement direction of pixels on the target surface is the same, but the magnitude of image movement varies in different pixel regions. This type of image movement is called allometric image movement. Aerial cameras have significant technical and tactical importance for oblique-view operations, therefore, allometric image movement occupies an important position in aerial image movement.

[0003] Driven by the broader digital environment, photogrammetry is rapidly developing into a digital field. Aerial photography, thanks to advancements in large-scale CCD devices, high dynamic range positioning and attitude determination technologies, and the inherent advantages of digital aerial cameras, will undoubtedly see high-resolution digital aerial cameras gradually replace film-based aerial cameras. Aerial digital cameras have significant applications and broad prospects in both military and civilian sectors. In the national economy, my country is vigorously developing high-altitude Earth observation technology. High-resolution area-array CCD aerial cameras have already played a crucial role in aerial mapping, resource surveys, and disaster assessment, demonstrating their clear advantages over film aerial cameras. Therefore, there is an urgent need for aerial imaging motion compensation technology to evolve towards electronic and digital transformation.

[0004] As the resolution of aerospace remote sensing cameras increases, so do their focal length and relative aperture, leading to a continuous increase in camera size and mass. This contradicts the limited carrying capacity of satellite platforms. Therefore, it is essential to consider reducing camera size and mass while simultaneously improving resolution—that is, miniaturization and weight reduction. Currently, camera electronics are becoming a key factor limiting the overall size, mass, and power consumption of cameras. Therefore, reducing the weight and improving the performance of electronics systems without significantly altering camera performance—that is, increasing the integration of electronics systems—has become a major trend in the development of aerospace remote sensing cameras. Furthermore, aerial cameras generally consist of two parts: the camera body module and the imaging module. However, current aerial cameras lack in-chip compensation for image shift at varying speeds.

[0005] Given the current limitations of cameras, such as large size, heavy weight, and lack of compensation functionality, improvements are necessary. Summary of the Invention

[0006] Based on this, the present invention proposes a camera and a method for image compensation of all-velocity image shift that support all-velocity image shift compensation, in order to solve or partially solve the problems existing in the prior art.

[0007] In a first aspect, the present invention provides a camera supporting allometric image shift compensation, comprising:

[0008] Camera lens, used to capture light signals from a reconnaissance imaging scene;

[0009] An electronic shutter, electrically connected to the camera lens, is used for exposure;

[0010] A shutter controller, which is electrically connected to the electronic shutter, is used to control the exposure time, shutter width, and shutter speed of the electronic shutter.

[0011] An optical measurement module, which is electrically connected to the camera lens, is used to measure the light value of the light signal in the reconnaissance imaging scene.

[0012] The lookup module is electrically connected to the light measurement module and the shutter controller. The lookup module is used to look up and compare light value data and determine the electronic shutter exposure time. The shutter controller determines the shutter width and shutter speed based on the electronic shutter exposure time.

[0013] A detector module supporting allometric image shift compensation is electrically connected to the camera lens and the electronic shutter. The detector module supporting allometric image shift compensation converts the light signal of the reconnaissance imaging scene acquired by the camera lens into an electrical signal, and performs electronic allometric image shift compensation based on the exposure time, shutter width, shutter speed and mission parameters of the electronic shutter.

[0014] Preferably, the camera supporting allometric image shift compensation further includes:

[0015] A drive module for supporting allometric image shift compensation function is electrically connected to the detector module for supporting allometric image shift compensation function. The drive module for supporting allometric image shift compensation function is used to generate the drive signal required for the detector module for supporting allometric image shift compensation function to operate.

[0016] Preferably, the camera supporting the allometric image shift compensation function further includes: a temperature sensor, which is electrically connected to the driving module supporting the allometric image shift compensation function. The temperature sensor is used to collect the ambient temperature and sends the collected temperature to the driving module supporting the allometric image shift compensation function.

[0017] Preferably, the camera supporting the allometric image shift compensation function further includes: a humidity sensor, the humidity sensor being electrically connected to the allometric image shift compensation function driving module, the humidity sensor being used to collect ambient humidity, and the humidity sensor sending the collected humidity to the allometric image shift compensation function driving module.

[0018] Preferably, in the camera supporting the allometric image shift compensation function, the driving signals include: a horizontal driving signal, a vertical driving signal, an allometric image shift compensation timing driving signal, a line clock signal, a frame clock signal, and a black level compensation control signal.

[0019] Preferably, the camera supporting allometric image shift compensation function has a detector module that is an area array CCD, which is divided into more than one column, and each column of area array CCD can be independently driven to perform electronic allometric image shift compensation.

[0020] Preferably, the camera supporting allotropic image shift compensation function has mission parameters including aircraft speed, altitude, camera field of view, and camera focal length.

[0021] Secondly, the present invention also provides an allometric image shift imaging compensation method based on the aforementioned camera supporting allometric image shift compensation function, comprising the following steps:

[0022] The camera lens captures light signals from the reconnaissance imaging scene;

[0023] The optical measurement module measures the brightness level of the acquired optical signal in the reconnaissance imaging scene and determines the optical signal value;

[0024] The lookup module compares the measured light signal values ​​of the reconnaissance imaging scene with the electronic shutter exposure time and determines the exposure time.

[0025] The shutter controller determines the shutter width and shutter speed based on the electronic shutter exposure time;

[0026] The detector module that supports the image shift compensation function converts the light signal collected by the camera lens into an electrical signal. At the same time, the detector module that supports the image shift compensation function determines the parameters required for image shift compensation based on the exposure time, shutter width, shutter speed and task parameters, and performs image shift compensation based on the parameters required for image shift compensation.

[0027] The allometric image shift compensation function driver module generates the timing drive signal and the allometric image shift drive signal required by the detector module that supports the allometric image shift compensation function, and drives the detector module that supports the allometric image shift compensation function to work.

[0028] A temperature sensor collects the ambient temperature, and a humidity sensor collects the ambient humidity. The temperature and humidity values ​​are then input to a driver module that supports allometric image shift compensation. The detector module that supports allometric image shift compensation integrates the compensated signal with the temperature and humidity signals and outputs it to the next module.

[0029] The present invention provides a camera and a method for image compensation based on allometric image shift, which have the following advantages over the prior art:

[0030] 1. The present invention provides a camera with an allometric image shift compensation function, comprising a camera lens, an electronic shutter, a shutter controller, a light measurement module, a lookup table module, and an allometric image shift compensation function detector module. The lookup table module is used to look up and compare light value data and determine the electronic shutter exposure time, shutter width, and shutter speed. The allometric image shift compensation function detector module is used to convert the light signal collected by the camera lens into an electrical signal, and simultaneously perform electronic allometric image shift compensation based on the electronic shutter exposure time, shutter width, shutter speed, and task parameters. The camera with anometric image shift compensation function of the present invention overcomes the deficiency of existing aerial cameras that do not have compensation functions. Moreover, the camera with anometric image shift compensation function of the present invention can achieve aerial allometric image shift compensation without adding additional system hardware, and can reduce the quality, size, power consumption, and cost of the imaging system.

[0031] 2. The camera supporting all-velocity image shift compensation function of the present invention also includes a driving module supporting all-velocity image shift compensation function, which is electrically connected to the detector module supporting all-velocity image shift compensation function. The driving module supporting all-velocity image shift compensation function is used to generate the driving signal required for the detector module supporting all-velocity image shift compensation function to work.

[0032] 3. The camera supporting allometric image shift compensation function of the present invention also includes a temperature sensor and a humidity sensor. The temperature sensor collects the external temperature, and the humidity sensor collects the external humidity and sends it to the driving module supporting allometric image shift compensation function. The detector module supporting allometric image shift compensation function integrates the allometric shift compensated signal and the temperature and humidity signals and outputs them to the next module.

[0033] 4. The image shift compensation method of the present invention utilizes a detector module that supports image shift compensation function to convert the light signal collected by the camera lens into an electrical signal. At the same time, the detector module that supports image shift compensation function determines the parameters required for image shift compensation based on the exposure time, shutter width, shutter speed and mission parameters, and performs image shift compensation based on the parameters required for image shift compensation, thus overcoming the defect that existing aerial cameras do not have image shift compensation function. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A schematic diagram of the principle of allometric image shift in aviation and a schematic diagram of allometric image shift on the target surface;

[0036] Figure 2 This is a schematic diagram of allotropic image shift on the target surface.

[0037] Figure 3 This is a schematic diagram of the structure of a camera supporting allometric image shift compensation function in one embodiment of this application;

[0038] Figure 4 This is a schematic diagram of the main body module of a camera that supports allotropic image shift compensation function in another embodiment of this application;

[0039] Figure 5 This is a schematic flowchart of the allometric image shift imaging compensation method of this application. Detailed Implementation

[0040] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0042] This application provides a camera that supports allometric image shift compensation, such as... Figure 3 As shown, it includes:

[0043] Camera lens 1 is used to collect light signals from the reconnaissance imaging scene;

[0044] Electronic shutter 2, which is electrically connected to camera lens 1, is used for exposure;

[0045] Shutter controller 3, which is electrically connected to electronic shutter 2, is used to control the exposure time, shutter width, and shutter speed of electronic shutter 2.

[0046] The light measurement module 4 is electrically connected to the camera lens 1 and is used to measure the light value of the light signal in the reconnaissance imaging scene. The lookup table module 5 is electrically connected to the light measurement module 4 and the shutter controller 3 and is used to look up and compare the light value data and determine the exposure time of the electronic shutter 2. The shutter controller 3 determines the shutter width and shutter speed based on the exposure time of the electronic shutter 2.

[0047] The detector module 6, which supports the function of image shift compensation, is electrically connected to the camera lens 1 and the electronic shutter 2. The detector module 6 is used to convert the light signal of the reconnaissance imaging scene collected by the camera lens 1 into an electrical signal, and at the same time perform electronic image shift compensation according to the exposure time, shutter width and shutter speed of the electronic shutter 2 and the mission parameters.

[0048] It should be noted that the camera supporting allometric image shift compensation provided in this application includes a camera lens 1, an electronic shutter 2, a shutter controller 3, a light measurement module 4, a lookup table module 5, and a detector module supporting allometric image shift compensation 6. The electronic shutter 2 is an electronic time circuit that allows the detector to operate for a specific time and can have multiple shutter speeds. Light is projected through the camera lens 1, passes through the electronic shutter 2, and is imaged by the detector (i.e., the detector module supporting allometric image shift compensation mentioned later). The light measurement module 4 measures the light signal value of the reconnaissance imaging scene, i.e., the light intensity, and measures the brightness level of the scene imaged by the reconnaissance system. The lookup table module 5 has preset light... The system uses a pre-stored lookup table for primary and secondary exposure times, along with a lookup table for secondary exposure times. These lookup tables correspond to specific light levels. For a given light level, the exposure time is determined using the lookup table. The lookup module 5 compares the measured light level (light value) with a preset light level. The preset light level corresponds to a given solar angle above the horizon. If the measured light value is greater than the preset light level, the exposure time is determined by comparing it with the primary exposure time lookup table; if the measured light value is less than the preset light level, the exposure time is determined by comparing it with the secondary exposure time lookup table. The shutter controller 3 then determines the appropriate electronic shutter width and speed based on the suitable exposure time.

[0049] In some embodiments, it also includes:

[0050] A drive module 7 for supporting allometric image shift compensation function is electrically connected to a detector module 6 for supporting allometric image shift compensation function. The drive module 7 for supporting allometric image shift compensation function is used to generate the drive signal required for the detector module 6 to operate.

[0051] In some embodiments, the system further includes a temperature sensor 8, which is electrically connected to a driver module 7 that supports allometric image shift compensation. The temperature sensor 8 is used to collect the ambient temperature and sends the collected temperature to the driver module 7 that supports allometric image shift compensation.

[0052] In some embodiments, the system further includes a humidity sensor 9, which is electrically connected to a driver module 7 that supports allometric image shift compensation. The humidity sensor 9 is used to collect ambient humidity and sends the collected humidity to the driver module 7 that supports allometric image shift compensation.

[0053] Specifically, temperature sensor 8 collects the ambient temperature, and humidity sensor 9 collects the ambient humidity, which is then transmitted to the driver module 7 that supports allometric image shift compensation. The detector module 6 that supports allometric image shift compensation integrates the compensated signals with the temperature and humidity signals and outputs them to the next module.

[0054] In the above embodiments, the camera lens 1, electronic shutter 2, shutter controller 3, light measurement module 4, and lookup table module 5 constitute the main body module of the camera supporting the anomalous image shift compensation function. Further, referring to... Figure 4 The diagram shows a schematic of the main body module 10. The main body module is used for imaging, acquiring light signals, determining the appropriate exposure time, and determining the appropriate shutter width and shutter speed. The detector module 6, the drive module 7, the temperature sensor 8, and the humidity sensor 9 constitute the compensation function imaging module of the camera supporting torsional motion compensation. This module converts light signals into electrical signals and simultaneously performs torsional motion compensation.

[0055] In some embodiments, the toroidal image shift compensation function driving module 7 is used to generate various timing driving signals and toroidal image shift required by the toroidal image shift compensation function detector module. The driving signals include: horizontal driving signal, vertical driving signal, toroidal image shift compensation timing driving signal, line clock signal, frame clock signal, and black level compensation control signal. At the same time, the toroidal image shift compensation function driving module 7 is responsible for driving and transmitting the temperature data collected by the temperature sensor and the humidity signal collected by the humidity sensor.

[0056] The driver module 7, which supports the allometric image shift compensation function, is developed using FPGA and VHDL language, and adopts a top-down modular design.

[0057] In some embodiments, the detector module 6 supporting the allometric image shift compensation function is an area CCD, which is divided into more than one column, and each column of area CCD can be independently driven to perform electronic allometric image shift compensation.

[0058] In some embodiments, mission parameters include aircraft speed, altitude, camera field of view, and camera focal length; the parameters required for allometric image shift are the number of blocks and the charge transfer rate of the column in which each block is located.

[0059] Based on the same inventive concept, this application also provides an allometric image shift imaging compensation method for a camera supporting allometric image shift compensation function, as described above. Figure 5 As shown, it includes the following steps:

[0060] S1. The camera lens collects light signals from the reconnaissance imaging scene;

[0061] S2, the optical measurement module measures the brightness level of the acquired optical signal in the reconnaissance imaging scene and determines the optical signal value;

[0062] S3, the table lookup module compares the measured light signal value data of the reconnaissance imaging scene and determines the electronic shutter exposure time;

[0063] S4. The shutter controller determines the shutter width and shutter speed based on the electronic shutter exposure time;

[0064] S5, the detector module that supports the image shift compensation function converts the light signal collected by the camera lens into an electrical signal. At the same time, the detector module that supports the image shift compensation function determines the parameters required for image shift compensation based on the exposure time, shutter width and shutter speed and task parameters, and performs image shift compensation based on the parameters required for image shift compensation.

[0065] S6. The allometric image shift compensation function driver module generates the timing drive signal and the allometric image shift drive signal required by the detector module that supports the allometric image shift compensation function, and drives the detector module that supports the allometric image shift compensation function to work.

[0066] S7. The temperature sensor collects the ambient temperature, and the humidity sensor collects the ambient humidity. The temperature and humidity values ​​are then input to the driver module that supports the allometric image shift compensation function. The detector module that supports the allometric image shift compensation function integrates the allometric shift compensated signal with the temperature and humidity signals and outputs it to the next module.

[0067] The following further elaborates on the specific principles of allometric image shift compensation based on the parameters required for allometric image shift compensation.

[0068] Specifically, the causes of allotropic image shift are:

[0069] During reconnaissance operations, reconnaissance aircraft need to fly at high speed and low altitude to evade enemy radar surveillance. High-speed, low-altitude flight significantly improves the aircraft's battlefield survivability and deep reconnaissance and surveillance capabilities. However, this causes severe image shift on the target surface of aerial imaging, resulting in blurred aerial images and affecting the effectiveness of aerial reconnaissance. Furthermore, during forward flight, adjustments to the aircraft's attitude (such as side-flying) or the pitch angle of the aerial camera lens can cause the aerial camera to be in a certain position... Figure 1 The oblique viewing working state is shown. A schematic diagram on the target surface is shown below. Figure 2 As shown, when a CCD camera with an area array is tilted during imaging, due to the aircraft's tilt, within a single ground area, the forward image migration velocity of a near target on the image plane is the same in direction but different in magnitude compared to the forward image migration velocity of a far target. This forward image migration velocity, which is equal in direction but unequal in magnitude, is defined as heterogeneous image migration.

[0070] The specific principle of using the parameters required for allometric image shift compensation in this application for allometric image shift compensation is as follows.

[0071] This study investigates the formation mechanism of allometric image motion in an area-array CCD aerial camera using an image motion velocity vector model based on coordinate transformation. It calculates the image velocity distribution at various points in the field of view under maneuvering imaging conditions, establishes the correspondence between scene and focal plane imaging, and develops a mathematical model for allometric image motion compensation. Figure 1 As shown.

[0072] Throughout the entire array, the image motion rate at the focal plane along the aircraft's flight direction is not constant. It is determined by the range of tilt and the slant distance R (i.e., the distance from the lens to the corresponding point on the ground). The larger the range, the smaller the image motion rate at the focal plane. Specifically, in the vertical flight direction, the image motion rate at a point is related to the forward image motion V. P2 for:

[0073]

[0074] Where ε is half the field of view, δ is the camera's depression angle, f is the lens focal length, V is the aircraft's flight speed, and R is the slant distance, i.e., the distance from the lens to a point on the ground corresponding to the focal plane. The focal plane array can be further described geometrically as follows:

[0075]

[0076] Here, for any given θ, y is the distance from a point on the ground area photographed perpendicular to the flight direction to the centerline. As shown below:

[0077]

[0078] Where δ is the depression angle, i.e., the angle between the center of the field of view and the horizontal line; H is the altitude of the aircraft. Therefore:

[0079]

[0080] The effect of image shift in the focal plane direction on image quality can be obtained by calculating the image shift modulation transfer function (MTF) of the focal plane array. From equation (4), for a given lens focal length f, depression angle δ, field of view angle ε, and aircraft speed-to-altitude ratio V / H, the velocity v at a point y in the image along the direction perpendicular to the focal plane is... y It can be represented as:

[0081]

[0082] Secondly, the focal plane is divided into regions, such as Figure 2 As shown. With the goal of achieving clear imaging across the entire image plane and ensuring that the MTF of the focal plane is higher than 0.95, the entire area array CCD image plane is divided into regions.

[0083] When the aircraft's speed-to-altitude ratio decreases, the image migration speed also decreases accordingly. At this point, maintaining the resolution of the ground image is futile, regardless of the focal length of the lens used. The distance L that the image migrates from a point on the focal plane parallel to the flight direction is related to the aircraft's flight speed v and the total time t. The total time t is the sum of the exposure times of the focal plane array (i.e., the shutter opening time). According to the modulation transfer function (MTF), the degree of image blur M is a function of L:

[0084]

[0085] Expanding equation (6), the image displacement velocity relative to any point y on the edge of the focal plane array is:

[0086]

[0087] In equation (2), θ varies with the position of y; Φ is a step function, defined as: Φ(y≥0)=1, Φ(y≤0)=0.

[0088] Equation (8) gives the distance L from any image point to any point y in any image shift compensation region k:

[0089]

[0090] Where Y is the width of the focal plane, k is the FMC region number, and the value of the integer i determines which region's center point is used to subtract the y value from the function.

[0091] The forward image movement velocity depends only on the longitudinal field of view and is independent of the lateral field of view. The image movement velocities at different field of view points on the image plane are:

[0092]

[0093] Divide the CCD image plane into, for example Figure 2 Equal blocks, each block having a width of Where d is the number of blocks.

[0094] The forward image movement velocity depends only on the longitudinal field of view and is independent of the lateral field of view. The image movement velocities at different field of view points on the image plane are:

[0095]

[0096] A point moves at a speed of L is the target surface size, and the velocities of adjacent points are sequentially...

[0097]

[0098] Compensation is performed based on the median value of the motion velocities of two adjacent image blocks, then: V N -V N-1 =V N-1 -V N-2 =......=V2-V1

[0099] Calculated based on the compensation image shift residual not exceeding 1 / 3 of a pixel, then w represents the pixel size.

[0100] but Solving Where L is the target size, τ is the exposure time, H is the flight altitude, and w is the pixel size.

[0101] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A camera supporting allometric image shift compensation, characterized in that, include: Camera lens, used to capture light signals from a reconnaissance imaging scene; An electronic shutter, electrically connected to the camera lens, is used for exposure; A shutter controller, which is electrically connected to the electronic shutter, is used to control the exposure time, shutter width, and shutter speed of the electronic shutter. An optical measurement module, which is electrically connected to the camera lens, is used to measure the light value of the light signal in the reconnaissance imaging scene. The lookup table module is electrically connected to the light measurement module and the shutter controller. The lookup table module is used to look up and compare light value data and determine the electronic shutter exposure time. The lookup table module has preset light level values ​​and also has a pre-stored main exposure time lookup table and a low exposure time lookup table. Both the main exposure time lookup table and the low exposure time lookup table have a corresponding relationship with the light level values. For a certain light level value, the exposure time is determined by the exposure time lookup table. The lookup module compares the measured light level, i.e., the light value, with a preset light level value. The preset light level value corresponds to a given solar angle above the horizon. If the measured light value is greater than the preset light level value, the exposure time is determined by comparing the measured light value with the main exposure time lookup table. If the measured light value is less than the preset illumination level, the exposure time is determined by comparing the measured light value with a low exposure time lookup table; the shutter controller determines the shutter width and shutter speed based on the electronic shutter exposure time. A detector module supporting torsional motion compensation is electrically connected to the camera lens and electronic shutter. This detector module converts the light signal of the reconnaissance imaging scene acquired by the camera lens into an electrical signal, and performs electronic torsional motion compensation based on the exposure time, shutter width, shutter speed, and mission parameters of the electronic shutter. The detector module supporting torsional motion compensation is an area array CCD, which is divided into more than one column. Each column of the area array CCD can be independently driven to perform electronic torsional motion compensation. A drive module for supporting all-velocity image shift compensation function is electrically connected to the detector module for supporting all-velocity image shift compensation function. The drive module for supporting all-velocity image shift compensation function is used to generate the drive signal required for the detector module to operate. A temperature sensor is electrically connected to the driver module that supports allotropic image shift compensation function. The temperature sensor is used to collect the ambient temperature and sends the collected temperature to the driver module that supports allotropic image shift compensation function. A humidity sensor is electrically connected to the driver module that supports allotropic image shift compensation function. The humidity sensor is used to collect the ambient humidity and sends the collected humidity to the driver module that supports allotropic image shift compensation function. The detector module that supports allometric motion compensation integrates the compensated signal with the temperature and humidity signals and outputs it to the next module.

2. The camera supporting all-velocity image shift compensation as described in claim 1, characterized in that, The driving signals include: horizontal driving signal, vertical driving signal, heterogeneous image shift compensation timing driving signal, line clock signal, frame clock signal, and black level compensation control signal.

3. The camera supporting all-velocity image shift compensation as described in claim 1, wherein the mission parameters include aircraft speed, altitude, camera field of view, and camera focal length.

4. A method for image compensation based on an image motion compensation function for a camera according to any one of claims 1-3, comprising the following steps: The camera lens captures light signals from the reconnaissance imaging scene; The optical measurement module measures the brightness level of the acquired optical signal in the reconnaissance imaging scene and determines the optical signal value; The lookup module compares the measured light signal values ​​of the reconnaissance imaging scene with the electronic shutter exposure time and determines it. The shutter controller determines the shutter width and shutter speed based on the electronic shutter exposure time; The detector module that supports the image shift compensation function converts the light signal collected by the camera lens into an electrical signal. At the same time, the detector module that supports the image shift compensation function determines the parameters required for image shift compensation based on the exposure time, shutter width, shutter speed and task parameters, and performs image shift compensation based on the parameters required for image shift compensation. The allometric image shift compensation function driver module generates the timing drive signal and the allometric image shift drive signal required by the detector module that supports the allometric image shift compensation function, and drives the detector module that supports the allometric image shift compensation function to work. The temperature sensor collects the ambient temperature, and the humidity sensor collects the ambient humidity. The temperature and humidity values ​​are then input into the driver module that supports allometric image shift compensation. The detector module that supports allometric motion compensation integrates the compensated signal with the temperature and humidity signals and outputs it to the next module.

Images