Method, device and system for calibrating azimuth elements in the whole stereo surveying and mapping camera
A technology of stereo surveying and mapping cameras and internal orientation elements, which is applied to measuring devices, instruments, etc., can solve the problems of difficult to reflect the true quality of the optical system under test, and the measurement accuracy of lens distortion cannot meet the requirements of technical indicators, so as to shorten the development cycle. , The effect of batch detection is convenient and high-precision measurement
Active Publication Date: 2022-07-08
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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[0004] The transfer function measurement device can measure lens distortion, but it is difficult to reflect the real quality of the optical system under test, and the measurement accuracy of lens distortion often fails to meet the technical specification requirements
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[0037] In order to make those skilled in the art better understand the solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0038] The terms "first", "second", "third", "fourth", etc. in the description and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. . Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of ste...
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The embodiment of the present invention discloses a method, device and system for calibrating orientation elements in the whole machine of a stereoscopic surveying and mapping camera. It includes a high-precision self-collimation theodolite, a grid plate arranged in a three-dimensional adjustment mechanism, a light source module that emits parallel beams, and a parameter calculation device, and the grid plate is driven to move in three-dimensional space by adjusting the three-dimensional adjustment mechanism. The high-precision auto-collimation theodolite measures the grid line convergence points of the grid plate line by line through a standard lens, and takes the azimuth angle information and pitch angle information of each convergence point obtained by the measurement as the reference information; the parameter calculation device is based on the reference information, distortion The measurement calculation table, the grid plate image captured by the stereoscopic surveying and mapping camera to be measured, and the angle information of the corresponding gridding plate are used to calculate the inner orientation element value of the stereoscopic surveying and mapping camera to be measured and the measurement accuracy of lens distortion. The present application realizes the high-precision measurement of the identification accuracy of the azimuth elements in the whole machine of the stereoscopic surveying and mapping camera, and provides convenience for the batch detection of the stereoscopic surveying and mapping camera products.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of stereo surveying and mapping camera calibration, and in particular, to a method, device and system for calibrating azimuth elements in a complete stereoscopic surveying and mapping camera. Background technique [0002] Stereo mapping is the full-scale mapping of object surfaces, such as stereoscopic observation, radar interferometry, and laser scanning mapping. Stereo mapping cameras, such as area array digital cameras and video cameras, are the key components for stereo imaging and are widely used in the field of remote sensing technology. [0003] Stereo mapping cameras will have errors in processing and assembly, resulting in distortion between the actual image and the ideal image on the camera's image plane. The smaller the distortion, the higher the imaging quality of the camera's optical system. [0004] The transfer function measurement device can measure the lens distortion,...
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IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 周兴义马洪涛张鹰金辉李旭
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI