A multi-angle crop image information acquisition device

Abstract

The utility model relates to a multi-angle crop image information acquisition device, comprising a crop positioning and rotating device, a camera fixing device, a fill light device, a background device, a support device and an integrated control platform. The crop positioning and rotating device is mainly composed of a crop positioning tray and a servo motor, and is used to fix the crop and realize fixed-angle rotation; the camera fixing device comprises an arc guide rail, a camera fixing bracket and a camera, and is used for multi-angle image acquisition; the fill light device is composed of four groups of lamp tubes, and is used to eliminate image shadows; the background device comprises an integrated arc groove and a background plate, and is used to avoid background interference; the support device is composed of an arc bracket and a fixed bracket, and is used to support the overall device; the integrated control platform is composed of a circuit control cabinet and a computer, and is used to control the operation of the device and image acquisition; the device can realize the accurate acquisition of multi-angle and multi-directional image information of crops, and provide basic images for the image analysis process.

Description

Technical Field

[0001] The utility model relates to the technical field of crop image information collection, in particular to a multi-angle crop image information collection device. Background Art

[0002] Crop image information can reflect the actual growth status of crops and is an important source of information for research in the field of crop science. Crop image information plays a key role in improving the efficiency, quality and scientific research level of agricultural production. Acquiring crop image information can monitor crop growth and health, yield prediction and planning, pest and disease monitoring and prevention, and achieve precision agriculture. Crops will produce different phenotypic information at different growth stages, so it is particularly important to quickly, accurately and comprehensively acquire crop image information. At present, common methods for acquiring crop image information include using a camera to shoot crop images, then extracting two-dimensional information features through machine learning and deep learning, and extracting three-dimensional information features through three-dimensional reconstruction technology based on digital images. This has led to the emergence of crop two-dimensional image acquisition devices and three-dimensional reconstruction image acquisition devices. However, there are certain problems with the cost, practicality and convenience of the device, and it rarely involves the joint collection of multi-angle and multi-directional image information under the same device. Summary of the invention

[0003] In order to solve the above technical problems, the utility model provides a multi-angle crop image information acquisition device. The device can accurately acquire multi-angle and multi-directional image information of crops and provide image information for two-dimensional image feature extraction and three-dimensional reconstruction.

[0004] In order to realize the above functions, the utility model provides the following technical solutions: a multi-angle crop image information acquisition device. The device includes: a crop positioning and rotating device for fixing the crop position and realizing fixed-angle rotation, mainly composed of four parts: a crop positioning tray, a coupling, a servo motor and its matching parts, and a servo motor fixed support. The crop positioning tray is used to place and fix the crops and crop pots that need to be imaged; the coupling is used to connect the shaft under the crop positioning tray and the output shaft of the servo motor to achieve synchronous rotation; the servo motor and its matching parts are used to accurately control the rotation angle of the crop; the fixed support is used to fix the servo motor.

[0005] The camera fixing device is used for photographing and collecting crop image information from multiple angles. It is mainly composed of an arc guide rail, a positioning bolt, four sets of camera fixing brackets and cameras in different directions. The arc guide rail is used to support the camera fixing bracket and camera in different directions. The arc part of the arc guide rail has an angle scale to ensure accurate control of the angle of camera movement. The camera fixing bracket is detachable, which is convenient for matching the camera according to the image information collection requirements. The camera positioning bolt is installed at the rear end of the camera fixing bracket to tighten and fix the camera fixing bracket and the camera position. The four sets of cameras are used to shoot crops in four directions: front view, top view, 30 degree side view and 60 degree side view to obtain images.

[0006] The fill light device is used to avoid the influence of crop shadow on image quality, ensure the clarity and details of the image, restore the true color of the crop, and make the image closer to the actual situation. The device mainly includes four sets of lamps and their data cables. The background device is used to effectively avoid background interference and improve the clarity and recognition of the image. It mainly includes an integrated arc groove on the left, an integrated arc groove on the right, and an integrated background plate. The integrated background plate is placed in the space formed by the integrated arc groove on the left and the integrated arc groove on the right, which is convenient for extraction and replacement.

[0007] The support device is used to fix the whole device, support the lamp tube in the fill light device and fix the arc guide rail in the camera fixing device. It mainly includes the lower end fixing bracket, the left and right integrated arc brackets and the support bracket.

[0008] The integrated control platform is used to control the simultaneous opening and closing of the four groups of lamps in the fill light device; issue instructions for the camera in the camera fixing device to open and close, take pictures, and obtain information; and control the start and stop of the servo motor in the crop positioning and rotating device, as well as the rotation angle control. It consists of two parts: a circuit control cabinet and a computer.

[0009] Compared with the existing technical projects, the advantage of the utility model is that the device can be used for multi-angle crop image information collection. Four groups of cameras with different angles are designed in this device. By taking pictures of crops, the front view image, top view image, 30-degree side view image and 60-degree side view image of the crop's initial position can be collected. The crop positioning and rotation device in this device can realize the fixed-angle rotation of the crop, and the rotation angle can be set according to the image acquisition requirements. After the rotation of the crop, its front view image, top view image and side view image have all changed, so four groups of cameras are required to take pictures of the crop again, and the computer-side image information acquisition software will obtain four groups of images at new angles. And so on, until the servo motor drives the crop to rotate for a full circle, and the photography stops. Through this device, the acquisition of image information of crops at multiple angles and multiple positions can be realized, providing basic image information for subsequent crop two-dimensional image feature extraction and three-dimensional reconstruction. At the same time, the device can also realize the customization of the shooting angle and complete the image information collection of crops at special angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall axial side structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the axial structure of the crop positioning rotation device;

[0012] Figure 3 This is a schematic diagram of the axonometric structure of the camera fixing device;

[0013] Figure 4 Schematic diagram of the arc guide structure in the camera fixing device

[0014] Figure 5 This is a schematic diagram of the axonometric structure of the fill light device;

[0015] Figure 6 It is the axonometric structural diagram of the background device;

[0016] Figure 7 It is a schematic diagram of the axonometric structure of the support device;

[0017] Figure 8 This is a schematic diagram of the axonometric structure of the integrated control platform.

[0018] Among them, 101: crop model; 102: crop pot; 103: crop positioning tray; 104: coupling; 105: servo motor and its accessories; 106: servo motor fixing support; 201: front view camera; 202: 30 degree side view camera; 203: 60 degree side view camera; 204: top view camera; 205: front view camera fixing bracket; 206: 30 degree side view camera fixing bracket; 207: 60 degree side view camera fixing bracket; 208: top view camera fixing bracket; 209: camera positioning bolt; 210: arc guide rail; 211: arc scale; 301: vertical left lamp tube; 302: vertical right lamp tube; 303: horizontal left lamp tube; 304: horizontal right lamp tube; 401: left integrated arc groove; 402: right integrated arc groove; 403: integrated background plate; 501: lower end fixed bracket; 502: left integrated arc bracket; 503: right integrated arc bracket; 504: vertical left square bracket; 505: vertical right square bracket; 506: horizontal left square bracket; 507: horizontal right square bracket; 508: horizontal top square bracket; 601: circuit control cabinet; 602: computer. DETAILED DESCRIPTION

[0019] The device of the utility model mainly includes:

[0020] The crop positioning and rotating device is mainly composed of four parts: a crop positioning tray 103, a coupling 104, a servo motor and its matching 105, and a servo motor fixed support 106. The crop positioning tray 103 is used to support the crop model 101 and the crop pot 102, and is used to place the plants that need to collect image information. A concave circular groove is provided in the middle of the tray, and the diameter of the circular groove is consistent with the diameter of the crop pot, which can ensure that the position of the crop is accurate. A coupling 104 is connected below the crop positioning tray 103, and the coupling 104 is responsible for connecting the output shaft of the crop positioning tray 103 and the servo motor and its matching 105 to facilitate the synchronous rotation of the two. The servo motor and its matching 105 include a servo motor and a corresponding encoder, a controller and a driver. The encoder is used to measure the angle of the motor in real time, the controller is responsible for processing the control algorithm and outputting the control signal, and the driver converts the control signal into a current or voltage signal that the motor can understand. Through the above operation, the servo motor can realize the function of rotating and positioning at different angles according to the needs of crop image information collection, and realize accurate control of the plant angle. A servo motor fixing support 106 is provided below the servo motor and its supporting parts 105, which is used to fix the servo motor and its supporting parts to ensure their stable operation.

[0021] The camera fixing device is composed of a front view camera 201, a side view 30 degree camera 202, a side view 60 degree camera 203, a top view camera 204, a front view camera fixing bracket 205, a side view 30 degree camera fixing bracket 206, a side view 60 degree camera fixing bracket 207, a top view camera fixing bracket 208, a camera positioning bolt 209, an arc guide rail 210 and an arc scale 211. The arc guide rail 210 needs to have sufficient rigidity and stability to ensure the accuracy and stability of the camera movement. The arc portion on the arc guide rail 210 has an angle scale 211 to ensure accurate control of the angle of camera movement. The arc guide rail 210 is vertically installed between the horizontal front end square bracket 508 and the lower end fixed bracket 501. The curved guide rail 210 is equipped with four camera fixing brackets that are easy to disassemble and install, namely, a front view camera fixing bracket 205, a side view 30 degree camera fixing bracket 206, a side view 60 degree camera fixing bracket 207 and a top view camera fixing bracket 208. The camera fixing brackets can move freely on the curved guide rail 210, and the specific positions are adjusted according to the image information acquisition requirements. The front view camera fixing bracket 205 is installed at the transition between the curved guide rail and the vertical guide rail, and the top view camera fixing bracket 208 is installed at the transition between the curved guide rail and the horizontal guide rail. The side view 30 degree camera fixing bracket 206 and the side view 60 degree camera fixing bracket 207 are respectively installed at the corresponding positions of the 30 degree scale and the 60 degree scale on the curved guide rail. The four camera fixing brackets are respectively equipped with cameras at corresponding positions for shooting crop images at corresponding angles, namely, a front view camera 201, a side view 30 degree camera 202, a side view 60 degree camera 203 and a top view camera 204. Four camera positioning bolts 209 are installed at the rear end of the four camera fixing brackets to determine the camera installation position and then position the camera to ensure that the camera position does not move. The camera needs to adjust the shooting parameters before use. The data transmission line is used to connect the four cameras and the computer terminal to transmit instructions and image data.

[0022] The fill light device is composed of a vertical left lamp tube 301, a vertical right lamp tube 302, a horizontal left lamp tube 303, and a horizontal right lamp tube 304. Four groups of LED long strip lamp tubes are respectively fixed on a vertical left square bracket 504, a vertical right square bracket 505, a horizontal left square bracket 506, and a horizontal right square bracket 507, so as to avoid the influence of crop shadow on image quality, ensure the clarity and details of the image, restore the true color of the crop, and make the image closer to the actual situation.

[0023] The background device is composed of an integrated arc groove 401 on the left, an integrated arc groove 402 on the right, and an integrated background plate 403. The integrated arc groove 401 on the left is welded to the integrated arc bracket 502 on the left, and the integrated arc groove 402 on the right is welded to the integrated arc bracket 503 on the right. The integrated background plate 403 is a bendable plate, which is placed in the space formed by the integrated arc groove 401 on the left and the integrated arc groove 402 on the right. It is open and removable, which is convenient for replacement at a later stage. After installation, the integrated background plate 403 can serve as a common background plate for front view images, side view images, and top view images, effectively avoiding background interference and improving the clarity and recognition of the image.

[0024] The supporting device is composed of a lower fixed bracket 501, a left integrated arc bracket 502, a right integrated arc bracket 503, a vertical left square bracket 504, a vertical right square bracket 505, a horizontal left square bracket 506, a horizontal right square bracket 507, a horizontal front square bracket 508 and a horizontal top square bracket 509. The lower fixed bracket 501 is placed below the overall device to support and fix the overall device. The left integrated arc bracket 502, the right integrated arc bracket 503, the vertical left square bracket 504 and the vertical right square bracket 505 are installed above the lower fixed bracket 501 to create an image information acquisition space. The horizontal left square bracket 506, the horizontal right square bracket 507 and the horizontal top square bracket 508 are installed above the overall device, and their main functions are to fix the overall device, support the lamp tube in the fill light device and fix the arc guide rail in the camera fixing device.

[0025] The integrated control platform consists of a circuit control cabinet 601 and a computer 602. The circuit control cabinet 601 contains the circuit, controller and power supply of the whole device. The computer 602 is placed above the circuit control cabinet 601 and is mainly used to control the simultaneous opening and closing of the four groups of lamps in the fill light device; issue instructions for the camera in the camera fixing device to open and close, take pictures and obtain information at the same time; and control the start and stop of the servo motor in the crop positioning and rotating device, as well as the rotation angle control.

[0026] When crop image information collection is required, the crop with the bottom pot is placed in the crop positioning tray 103, and the corresponding software is opened in the computer 602 in the integrated control platform to turn on the vertical left lamp tube 301, the vertical right lamp tube 302, the horizontal left lamp tube 303 and the horizontal right lamp tube 304 in the fill light device at the same time. At the same time, the image information collection software in the computer 602 is opened to prepare for crop image collection. The front view camera 201 above the front view camera fixing bracket 205, the side view 30 degree camera 202 above the side view 30 degree camera fixing bracket 206, the side view 60 degree camera 203 above the side view 60 degree camera fixing bracket 207, and the top view camera 204 on the top view camera fixing bracket 208 in the camera fixing device are respectively adjusted to the 30 degree and 60 degree angle positions directly above, directly in front of and to the side of the crop, and fixed with the camera positioning bolts 209 respectively. Click the shooting button on the computer to complete the collection of the two-dimensional images of the crops in four directions and save them. Turn on the servo motor and its supporting equipment 105 to rotate the crop positioning tray 103. After rotating to the corresponding position according to the specified angle, the servo motor and its supporting equipment 105 stop working. Then click the shooting button on the computer again to complete the acquisition of the two-dimensional images of the crops in four directions and save them. According to this method, by analogy, when the servo motor and its supporting equipment 105 have rotated a full circle, the image information acquisition is completed. When it is necessary to retake the image information of a certain angle, move the camera fixing bracket to the corresponding position of the arc guide rail 210, and perform image information acquisition according to the above steps. Finally, the collected image data is subjected to image processing or deep learning to extract two-dimensional image features; multi-angle images can also be integrated, and three-dimensional reconstruction software can be used to perform three-dimensional reconstruction of crops and extract three-dimensional image features.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A multi-angle crop image information acquisition device, characterized in that: include: Crop positioning and rotating device, used to fix the crop position and achieve fixed angle rotation; A camera fixing device is used for photographing and collecting crop image information from multiple angles; Fill-in light device, used to avoid the interference of crop shadows on crop images; Background device, used to effectively avoid background interference and improve image clarity and recognition; A supporting device, used to provide support for the crop image information collection main functional device; Integrated control platform, used for overall device electrical component control and image information acquisition.

2. The multi-angle crop image information acquisition device according to claim 1, characterized in that A concave circular groove is arranged on the crop positioning tray.

3. The multi-angle crop image information acquisition device according to claim 1, characterized in that A coupling is arranged below the crop positioning tray.

4. The multi-angle crop image information acquisition device according to claim 1, characterized in that The coupling connects the crop positioning tray and the servo motor.

5. The multi-angle crop image information acquisition device according to claim 4, characterized in that The servo motor is equipped with a corresponding encoder, controller and driver.

6. The multi-angle crop image information acquisition device according to claim 1, characterized in that A detachable camera fixing bracket is installed on the arc-shaped guide rail.

7. The multi-angle crop image information acquisition device according to claim 6, characterized in that The arc portion of the arc guide rail has an angle scale.

8. The multi-angle crop image information acquisition device according to claim 1, characterized in that The background device is provided with a left-side integrated arc-shaped groove and a right-side integrated arc-shaped groove.

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