Method for correcting automatic grey board by camera
A camera and gray board technology, applied in the field of agricultural remote sensing, can solve problems such as complex efficiency, achieve precise camera correction, reduce manual participation, and save labor
Pending Publication Date: 2022-03-22
SHANDONG UNIV OF TECH
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Problems solved by technology
This manual positioning operation method is complicated and inefficient
[0004] For the cumbersome steps of camera calibration, a method that is different from the traditional method of calibrating gray boards is needed, such as developing a method of shooting gray boards, automatically shooting gray boards, and performing camera calibration
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[0021] Please refer to Figure 1 to Figure 4 Shown, it has shown the specific structure of the preferred embodiment of the present invention, is a kind of camera calibration automatic dust board device. The machine is mainly used for calibration of remote sensing cameras, and the machine can perform all work of camera calibration at one time. The machine mainly includes the system control part, which can accurately and stably correct the camera.
[0022] Among them, the camera calibration and automatic gray board method uses a computer platform to control the action logic of the machine. Compared with manual operation, automatic control provides better operation and saves time. It can be applied in the Windows operating system, and can also be controlled on the mobile phone terminal. Has better compatibility.
[0023] The camera calibration method of the present invention automatically shoots gray boards. Its functional mechanism consists of: steering gear mechanism, high-p...
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The invention discloses a full-automatic method for correcting an automatic grey board through a camera. Mechanisms adopted in the method for correcting the automatic grey board through the camera comprise a posture adjusting assembly (a steering engine mechanism), a high-precision rotating platform mechanism, a mechanical arm, a high-precision servo closed-loop motor, a single-chip microcomputer, an industrial personal computer and a computer. The method comprises the steps of starting, plate placing, pre-alignment and plate beating correction. And moreover, the whole process is automatic, and manual participation is reduced. The method is customized for remote sensing data acquisition and camera calibration of the agricultural remote sensing camera. In the field of agricultural remote sensing, when remote sensing data acquisition is carried out, parameters such as camera lens distortion need to be corrected firstly, and work such as next-step data acquisition is carried out. Typically, camera calibration requires a camera to be loaded onto a carrier. And then, the calibration plate is manually held to calibrate the camera. Therefore, when the remote sensing camera is corrected, a remote sensing camera correction method different from a traditional remote sensing camera correction method is needed, and correction work of the remote sensing camera is completed in an automatic mode.
Description
technical field [0001] The invention relates to the technology in the field of agricultural remote sensing, in particular to a method for calibrating a gray board with a camera for calibrating a remote sensing camera when it is used for agricultural remote sensing crop monitoring. Background technique [0002] In the field of agricultural remote sensing, it is of great significance to extract key agricultural data of vegetation growth rhythms such as crops based on camera-based near-ground observation data. When collecting remote sensing data, it is first necessary to calibrate the focal length of the camera, etc., and proceed to the next step of data collection. During the crop inspection operation of the ground inspection vehicle, camera calibration usually requires the camera to be loaded on the vehicle. Then, manually hold the calibration plate to calibrate the camera. Therefore, when the camera needs to be calibrated, it is time-consuming and labor-intensive to manual...
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IPC IPC(8): H04N17/00
CPCH04N17/002
Inventor 不公告发明人
Owner SHANDONG UNIV OF TECH