Vegetation index satellite product verification method, device, equipment and readable storage medium

Abstract

The present invention provides a vegetation index satellite product verification method, device, equipment and readable storage medium. The vegetation index satellite product verification system includes a color camera unit, a vegetation index camera unit, an image transmission unit and a display storage unit, wherein: the color camera unit is used to generate a monitoring image; the vegetation index camera unit is used to generate a vegetation image when the monitoring image is normal; the image transmission unit is used to transmit the monitoring image and the vegetation image to the display storage unit; the display storage unit is used to calculate the target measurement index corresponding to the vegetation image, and verify the accuracy of the satellite product according to the satellite product corresponding to the vegetation image and the target measurement index. The present invention realizes the automatic measurement of the vegetation index and the authenticity verification of the satellite product.

Description

Technical Field

[0001] The present invention relates to the field of detection technology, and in particular to a vegetation index satellite product verification method, device, equipment and readable storage medium. Background Art

[0002] In the field of remote sensing applications, vegetation index has been widely used to qualitatively and quantitatively evaluate vegetation coverage and its growth. Vegetation spectrum is affected by vegetation, soil brightness, environmental impact, shadow, soil color, humidity and atmospheric spatial phase changes. Therefore, there is no universal value for vegetation index. The index increases rapidly with the increase of vegetation amount. When the vegetation is at medium and low coverage, the index increases rapidly with the increase of coverage. When it reaches a certain coverage, the growth is slow, so it is suitable for dynamic monitoring of vegetation in the early and middle growth stages. The combination of blue light, red light and near-infrared channels can greatly eliminate the interference of aerosols in the atmosphere on the vegetation index, and the vegetation index composed can greatly improve the accuracy of vegetation growth monitoring and crop yield estimation.

[0003] The commonly used cameras for monitoring vegetation indices adopt multi-lens, multi-camera and multi-spectral cameras. The multiple detectors method undoubtedly increases the cost and is difficult to deploy over a large area. Alternatively, a single detector plus a dual-band filter mode is used. This method uses spectral unmixing to obtain information of the target band. It is difficult to obtain pure target band light information during calculation, and is not suitable for authenticity verification of satellite products. Summary of the invention

[0004] The present invention provides a vegetation index satellite product verification method, device, equipment and readable storage medium, which are used to solve the problem that the prior art cannot verify the authenticity of satellite products.

[0005] The present invention provides a vegetation index satellite product verification system, which comprises a color camera unit, a vegetation index camera unit, an image transmission unit and a display storage unit, wherein:

[0006] The color camera unit is used to generate a surveillance image;

[0007] The vegetation index camera unit is used to generate a vegetation image when there is no abnormality in the monitoring image;

[0008] The image transmission unit is used to transmit the monitoring image and the vegetation image to the display storage unit;

[0009] The display storage unit is used to calculate the target measurement index corresponding to the vegetation image, and verify the accuracy of the satellite product according to the satellite product corresponding to the vegetation image and the target measurement index.

[0010] According to a vegetation index satellite product verification system provided by the present invention, the vegetation index camera unit includes a lens, a filter set, a switching module, a two-dimensional array detector and an acquisition control circuit, wherein:

[0011] The lens is used to focus the reflected light of the object to be photographed onto the surface of the two-dimensional array detector;

[0012] The filter set is used to change the central wavelength and bandwidth of light passing through the filter set;

[0013] The switching module is used to switch the type of the filter set through a preset push-pull mode or a preset rotation mode;

[0014] The two-dimensional array detector is used to convert the light passing through the filter group into an electrical signal;

[0015] The acquisition control circuit is used to control the switching of the types of the filter group and to acquire the image generated by the two-dimensional area array detector.

[0016] According to a vegetation index satellite product verification system provided by the present invention, the display storage unit includes an instruction forwarding unit and an image processing unit, wherein:

[0017] The instruction forwarding unit is used to forward the control instruction sent by the display storage unit to the image transmission unit, so that the image transmission unit controls the color camera unit and the vegetation index camera unit;

[0018] The image processing unit is used to process the monitoring image acquired by the color camera unit and the vegetation image acquired by the vegetation index camera unit.

[0019] The present invention also provides a vegetation index satellite product verification method, comprising:

[0020] When there is no abnormality in the monitoring image acquired by the color camera unit, acquiring a vegetation image through the vegetation index camera unit;

[0021] According to the image transmission unit and the preset transmission mode, the vegetation image is transmitted to the display storage unit.

[0022] According to a vegetation index satellite product verification method provided by the present invention, the vegetation index satellite product verification method further includes the following steps:

[0023] A first band reflectivity and a second band reflectivity corresponding to the vegetation image are obtained, and a target measurement index corresponding to the vegetation image is calculated according to the first band reflectivity and the second band reflectivity.

[0024] According to a vegetation index satellite product verification method provided by the present invention, the vegetation index satellite product verification method further includes the following steps:

[0025] determining a satellite measurement index based on the satellite product;

[0026] The satellite measurement index and the target measurement index are compared by a preset size conversion method, and the accuracy of the satellite product is verified according to the comparison result.

[0027] The present invention also provides a vegetation index satellite product verification device, comprising:

[0028] A vegetation image acquisition module, used to acquire a vegetation image through the vegetation index camera unit when there is no abnormality in the monitoring image acquired by the color camera unit;

[0029] The vegetation image transmission module is used to transmit the vegetation image to the display storage unit according to the image transmission unit and a preset transmission mode.

[0030] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the vegetation index satellite product verification method described in any one of the above is implemented.

[0031] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the vegetation index satellite product verification method as described in any one of the above is implemented.

[0032] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements any of the above-mentioned vegetation index satellite product verification methods.

[0033] The vegetation index satellite product verification method, device, equipment and readable storage medium provided by the present invention use a vegetation index satellite product verification system including a color camera unit, a vegetation index camera unit, an image transmission unit and a display storage unit. When the monitoring image obtained by the color camera unit is normal, the vegetation image is obtained by the vegetation index camera unit, the monitoring image and the vegetation image are transmitted to the display storage unit through a preset transmission mode and the image transmission unit, and then the satellite product corresponding to the vegetation image is obtained, the target measurement index corresponding to the vegetation image is calculated through the display storage unit, and finally the accuracy of the satellite product is verified according to the satellite product and the target measurement index, thereby realizing the automatic measurement of the vegetation index and the authenticity verification of the satellite product. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a structural schematic diagram of the vegetation index satellite product verification system provided by the present invention;

[0036] Figure 2 It is a structural schematic diagram of a vegetation index camera unit in the vegetation index satellite product verification system provided by the present invention;

[0037] Figure 3 It is a flow chart of the vegetation index satellite product verification method provided by the present invention;

[0038] Figure 4 It is a structural schematic diagram of the vegetation index satellite product verification device provided by the present invention;

[0039] Figure 5 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Reference Figure 1 , Figure 1 The present invention provides a structural diagram of a vegetation index satellite product verification system, wherein the vegetation index satellite product verification system includes a color camera unit, a vegetation index camera unit, an image transmission unit and a display storage unit, wherein: Figure 1 As shown, the color camera unit and the vegetation index camera unit are respectively connected to the image transmission unit, the image transmission unit is connected to the display storage unit, and the power supply unit is connected to the image transmission unit, wherein the color camera unit is used to obtain color images of vegetation and other ground object samples for monitoring; the vegetation index camera is used to obtain vegetation index images of vegetation and other ground object samples; the image transmission unit is used to receive instructions from the display storage module, control the color camera unit and the vegetation index camera unit to collect images according to the parameters of the instructions, and return the collected images to the display storage module for processing, including calculating the vegetation index.

[0042] In this embodiment, a vegetation index satellite product verification system including a color camera unit, a vegetation index camera unit, an image transmission unit and a display storage unit is used to ensure automatic online acquisition of vegetation index images around the clock, thereby realizing automatic measurement of vegetation index and authenticity verification of satellite products.

[0043] In one embodiment, Figure 2 As shown, Figure 2 The present invention is a schematic diagram of the structure of a vegetation index camera unit in a vegetation index satellite product verification system provided by the present invention. The vegetation index camera unit comprises a lens, a filter group, a switching module, a two-dimensional array detector and an acquisition control circuit, wherein the lens is used to converge light reflected by vegetation to the surface of the two-dimensional array detector; the filter group is composed of a plurality of filters and is used to select the central wavelength and bandwidth of the transmitted light; the switching module is used to switch the position of the filter, and selects a suitable filter according to different vegetation indices measured, and can select a push-pull mode or a rotation mode; the two-dimensional array detector is used to obtain images of vegetation and other ground objects; the acquisition control circuit is used to control the switching module to switch the position of the filter and acquire the image of the two-dimensional array detector.

[0044] This embodiment ensures automatic online acquisition of vegetation index images around the clock, realizes automatic measurement of vegetation index and authenticity detection of satellite products through a vegetation index satellite product verification system including a color camera unit, a vegetation index camera unit, an image transmission unit and a display storage unit.

[0045] In one embodiment, the display storage unit includes an instruction forwarding unit and an image processing unit. Specifically, the instruction forwarding unit in this embodiment is used to forward the control instruction sent by the display storage unit to the image transmission unit so that the image transmission unit controls the color camera unit and the vegetation index camera unit; the image processing unit in this embodiment is used to process the monitoring image acquired by the color camera unit and the vegetation image acquired by the vegetation index camera unit. The vegetation index satellite product verification system is installed and arranged in a uniform arrangement in the field. Since the field of view of each camera unit is too small compared to a pixel of the satellite, the present application covers the area of ​​the satellite pixel by installing multiple systems, and compares the measurement value of the vegetation index satellite product verification system with the measurement value of the satellite by size conversion.

[0046] This embodiment ensures automatic online acquisition of vegetation index images around the clock, realizes automatic measurement of vegetation index and authenticity detection of satellite products through a vegetation index satellite product verification system including a color camera unit, a vegetation index camera unit, an image transmission unit and a display storage unit.

[0047] Please refer to Figure 3 The present invention provides a vegetation index satellite product verification method, comprising:

[0048] Step S100, when the monitoring image acquired by the color camera unit has no abnormality, acquiring a vegetation image through the vegetation index camera unit;

[0049] Specifically, the vegetation index satellite product verification method provided by the present invention is applied to Figure 2 The vegetation index satellite product verification system shown includes a color camera unit, a vegetation index camera unit, an image transmission unit, a display storage unit, and a power supply unit, wherein the color camera unit is used to obtain RGB images of vegetation and other ground object samples for monitoring, the vegetation index camera unit is used to obtain vegetation index images of vegetation and other ground object samples (i.e., vegetation images in this embodiment), and the image transmission unit is used to receive instructions from the display storage unit, control the color camera unit and the vegetation index camera unit to collect images according to the instructions, and transmit the collected images back to the display storage unit for processing. When there is no abnormality in the monitoring image (i.e., the above-mentioned RGB image) obtained by the color camera unit, the vegetation image is obtained by the vegetation index camera unit.

[0050] Step S200: transmitting the monitoring image and the vegetation image to the display storage unit according to the image transmission unit and a preset transmission method.

[0051] Specifically, the image transmission unit transmits the monitoring image acquired by the color camera unit and the monitoring image and vegetation image acquired by the vegetation index camera unit back to the display storage unit via a wired or wireless method (i.e., the preset transmission method in this embodiment); the display storage unit processes the monitoring image and vegetation image to obtain the required vegetation index image in order to calculate the vegetation index; the image transmission unit, the color camera unit, and the vegetation index camera unit are waterproof and can be placed directly in the wild, thereby ensuring automatic online acquisition of vegetation index images and measurement of vegetation index around the clock.

[0052] The satellite product corresponding to the vegetation image acquired by the vegetation index satellite product verification system is determined by the location (e.g., longitude and latitude) where the vegetation index satellite product verification system is installed. The satellite product refers to the vegetation image acquired by the satellite at the same location as the vegetation index satellite product verification system. The vegetation image acquired by the vegetation index satellite product verification system calculates the corresponding vegetation index (i.e., the target measurement index in this embodiment) through the display storage unit. The vegetation index does not have a universal value, such as the ratio vegetation index X and the normalized vegetation index Y. The ratio vegetation index is equal to the ratio between the reflectivity A of the near infrared band and the reflectivity B of the red light band, i.e., X=A÷B; the normalized vegetation index is equal to the difference between the reflectivity of the near infrared band and the reflectivity of the red light band divided by the sum of the reflectivity of the near infrared band and the reflectivity of the red light band, i.e., Y=|AB|÷(A+B).

[0053] After the vegetation index is calculated by the vegetation index satellite product verification system, the vegetation index calculated by the vegetation index satellite product verification system is compared with the vegetation index (at the same location) obtained by the satellite product. The vegetation index satellite product verification result is determined based on the comparison result, so as to track and monitor the vegetation growth.

[0054] This embodiment uses a vegetation index satellite product verification system including a color camera unit, a vegetation index camera unit, an image transmission unit and a display storage unit. When there is no abnormality in the monitoring image obtained by the color camera unit, the vegetation image is obtained by the vegetation index camera unit, the monitoring image and the vegetation image are transmitted to the display storage unit through a preset transmission method and the image transmission unit, and then the satellite product corresponding to the vegetation image is obtained. The target measurement index corresponding to the vegetation image is calculated by the display storage unit, and finally the accuracy of the satellite product is verified according to the satellite product and the target measurement index, thereby realizing the automatic measurement of the vegetation index and the authenticity verification of the satellite product.

[0055] In one embodiment, the vegetation index satellite product verification method provided in the embodiment of the present application may also include:

[0056] Step S300: Obtain a first band reflectivity and a second band reflectivity corresponding to the vegetation image, and calculate a target measurement index corresponding to the vegetation image according to the first band reflectivity and the second band reflectivity.

[0057] The target measurement index in this embodiment refers to the vegetation index, which is a numerical value reflecting the growth of vegetation, such as the ratio vegetation index X and the normalized vegetation index Y. The ratio vegetation index is equal to the ratio between the reflectivity A of the near-infrared band (i.e., the reflectivity of the first band in this embodiment) and the reflectivity B of the red light band (i.e., the reflectivity of the second band in this embodiment), that is, X=A÷B; the normalized vegetation index is equal to the difference between the reflectivity of the near-infrared band and the reflectivity of the red light band divided by the sum of the reflectivity of the near-infrared band and the reflectivity of the red light band, that is, Y=|AB|÷(A+B).

[0058] This embodiment calculates the vegetation index through the vegetation image acquired by the vegetation index camera unit, thereby ensuring automatic online acquisition of the vegetation index image around the clock.

[0059] In one embodiment, the vegetation index satellite product verification method provided in the embodiment of the present application may also include:

[0060] Step S400, determining a satellite measurement index according to the satellite product;

[0061] Step S500: Compare the satellite measurement index and the target measurement index by a preset size conversion method to obtain a vegetation index satellite product verification result.

[0062] Specifically, after the vegetation index is calculated from the vegetation image acquired by the vegetation index camera unit, the authenticity of the vegetation image acquired by the satellite is verified by scale conversion. The specific process includes: determining the vegetation image acquired by the satellite or the vegetation index measured by the satellite (i.e., the satellite measurement index in this embodiment) according to the satellite product, and then comparing the vegetation image acquired by the vegetation index camera unit and the vegetation image acquired by the satellite by scale conversion, or comparing the vegetation index calculated by the vegetation index satellite product verification system and the satellite measurement index to obtain a comparison result, and finally obtain the vegetation index satellite product verification result.

[0063] This embodiment verifies the authenticity of satellite products by means of size conversion.

[0064] The vegetation index satellite product verification device provided by the present invention is described below. The vegetation index satellite product verification device described below and the vegetation index satellite product verification method described above can be referenced to each other.

[0065] Please refer to Figure 4 The present invention also provides a vegetation index satellite product verification device, comprising:

[0066] A vegetation image acquisition module, used to acquire a vegetation image through the vegetation index camera unit when there is no abnormality in the monitoring image acquired by the color camera unit;

[0067] The vegetation image transmission module is used to transmit the vegetation image to the display storage unit according to the image transmission unit and a preset transmission mode.

[0068] It can be seen that the vegetation index satellite product verification device also includes:

[0069] The target measurement index calculation module is used to obtain the first band reflectivity and the second band reflectivity corresponding to the vegetation image, and calculate the target measurement index corresponding to the vegetation image according to the first band reflectivity and the second band reflectivity.

[0070] It can be seen that the vegetation index satellite product verification device also includes:

[0071] A satellite measurement index determination module, used to determine a satellite measurement index according to the satellite product;

[0072] The data comparison module is used to compare the satellite measurement index and the target measurement index through a preset size conversion method to obtain a vegetation index satellite product verification result.

[0073] Figure 5 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 5 As shown, the electronic device may include: a processor 510, a communication interface 520, a memory 530 and a communication bus 540, wherein the processor 510, the communication interface 520 and the memory 530 complete mutual communication through the communication bus 540. The processor 510 may call the logic instructions in the memory 530 to execute the vegetation index satellite product verification method, the method comprising: when the monitoring image acquired by the color camera unit has no abnormality, acquiring a vegetation image through the vegetation index camera unit; transmitting the monitoring image and the vegetation image to the display storage unit according to the image transmission unit and the preset transmission mode; acquiring the satellite product corresponding to the vegetation image, and calculating the target measurement index corresponding to the vegetation image through the display storage unit; and verifying the accuracy of the satellite product according to the satellite product and the target measurement index.

[0074] In addition, the logic instructions in the above-mentioned memory 530 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0075] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the vegetation index satellite product verification method provided by the above methods, and the method includes: when there is no abnormality in the monitoring image acquired by the color camera unit, acquiring a vegetation image through the vegetation index camera unit; transmitting the monitoring image and the vegetation image to the display storage unit according to the image transmission unit and the preset transmission method; acquiring a satellite product corresponding to the vegetation image, and calculating the target measurement index corresponding to the vegetation image through the display storage unit; and verifying the accuracy of the satellite product based on the satellite product and the target measurement index.

[0076] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, it is implemented to execute the vegetation index satellite product verification method provided by the above-mentioned methods. The method includes: when there is no abnormality in the monitoring image acquired by the color camera unit, acquiring a vegetation image through the vegetation index camera unit; transmitting the monitoring image and the vegetation image to the display storage unit according to the image transmission unit and a preset transmission method; acquiring a satellite product corresponding to the vegetation image, and calculating a target measurement index corresponding to the vegetation image through the display storage unit; and verifying the accuracy of the satellite product based on the satellite product and the target measurement index.

[0077] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0078] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vegetation index satellite product verification system, characterized in that: The vegetation index satellite product verification system comprises a color camera unit, a vegetation index camera unit, an image transmission unit and a display storage unit, wherein: The color camera unit is used to generate a surveillance image; The vegetation index camera unit is used to generate a vegetation image when there is no abnormality in the monitoring image; The image transmission unit is used to transmit the monitoring image and the vegetation image to the display storage unit; The display storage unit is used to calculate the target measurement index corresponding to the vegetation image, and verify the accuracy of the satellite product according to the satellite product corresponding to the vegetation image and the target measurement index; The vegetation index camera unit includes a lens, a filter set, a switching module, a two-dimensional array detector and an acquisition control circuit, wherein: The lens is used to focus the reflected light of the object to be photographed onto the surface of the two-dimensional array detector; The filter set is used to change the central wavelength and bandwidth of light passing through the filter set; The switching module is used to switch the type of the filter set through a preset push-pull mode or a preset rotation mode; The two-dimensional array detector is used to convert the light passing through the filter group into an electrical signal; The acquisition control circuit is used to control the switching of the types of the filter group and to acquire the image generated by the two-dimensional area array detector.

2. The vegetation index satellite product verification system according to claim 1, characterized in that: The display storage unit includes an instruction forwarding unit and an image processing unit, wherein: The instruction forwarding unit is used to forward the control instruction sent by the display storage unit to the image transmission unit, so that the image transmission unit controls the color camera unit and the vegetation index camera unit; The image processing unit is used to process the monitoring image acquired by the color camera unit and the vegetation image acquired by the vegetation index camera unit.

3. A vegetation index satellite product verification method, characterized in that: The vegetation index satellite product verification method is applied to the vegetation index satellite product verification system according to claim 1 or 2, and the vegetation index satellite product verification method comprises the following steps: When there is no abnormality in the monitoring image acquired by the color camera unit, acquiring a vegetation image through the vegetation index camera unit; According to the image transmission unit and the preset transmission mode, the monitoring image and the vegetation image are transmitted to the display storage unit.

4. The vegetation index satellite product verification method according to claim 3, characterized in that: The vegetation index satellite product verification method also includes the following steps: A first band reflectivity and a second band reflectivity corresponding to the vegetation image are obtained, and a target measurement index corresponding to the vegetation image is calculated according to the first band reflectivity and the second band reflectivity.

5. The vegetation index satellite product verification method according to claim 3, characterized in that: The vegetation index satellite product verification method also includes the following steps: The satellite measurement index and the target measurement index are compared through a preset size conversion method, and the accuracy of the satellite product is verified based on the comparison result.

6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the vegetation index satellite product verification method according to any one of claims 3 to 5 is implemented.

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