Multi-depth camera three-dimensional scanning-oriented full-automatic calibration device and method
A technology of three-dimensional scanning and calibration devices, which is applied in image data processing, instruments, calculations, etc., can solve the problems of low calibration efficiency and complicated operation, and achieve the effect of wide application range and improved calibration speed
Pending Publication Date: 2018-09-28
安徽中科智链信息科技有限公司
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Problems solved by technology
The calibration efficiency of this calibration method is very low, the operation is complicated and requires professionals to complete the calibration
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Embodiment 1
[0035] Such as figure 1 and 2 As shown, the present embodiment provides a fully automatic calibration device for three-dimensional scanning of multi-depth cameras, which includes a stereo calibration device 200 arranged at the center of a scanning platform 100, and the scanning platform 100 is surrounded by at least 1 The n sets of all face the depth camera 120 in the center of the scanning platform 100; the stereo calibration device 200 has n calibration facades for aligning the n depth cameras 120 one by one, and the stereo calibration device 200 includes at least 2 layers of calibration targets 210 , each layer of calibration target 210 is provided with n vertical calibration target surfaces 211; the corresponding calibration target surfaces 211 of each layer of calibration target 210 together constitute the corresponding calibration elevation, and the calibration target surface at any calibration target 210 211 are equidistantly shrunk inward to the corresponding calibrat...
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The invention relates to the field of camera calibration, and in particular to a multi-depth camera three-dimensional scanning-oriented full-automatic calibration device and method. The full-automaticcalibration device comprises a stereoscopic calibration device, wherein the stereoscopic calibration device is arranged at the center of a scanning platform; n depth cameras facing the center of thescanning platform are arranged around the scanning platform; the stereoscopic calibration device comprises n calibration vertical surfaces correspondingly aligned with the n depth cameras one to one;the stereoscopic calibration device comprises at least two layers of calibration targets; n vertical calibration target surfaces are arranged at each layer of calibration targets; the corresponding calibration target surfaces of each layer of calibration targets form a corresponding calibration vertical surface; the calibration target surfaces at any calibration target are equal-distantly and downwardly shrunk to corresponding calibration target surfaces of the lower layer of calibration targets; at least one feature mark is arranged at any calibration target surface; and center points of thefeature marks at a same calibration target surface are not collinear and the quantity of the center points is equal to or greater than 3. The method is realized on the basis of the full-automatic calibration device. The device and method are capable of realizing full-automatic calibration of cameras.
Description
technical field [0001] The invention relates to the technical field of camera calibration, in particular to a fully automatic calibration device and method for three-dimensional scanning of multi-depth cameras. Background technique [0002] With the development of depth camera technology and the continuous improvement of the accuracy of depth sensors, the technology of using consumer-grade depth cameras to quickly build low-cost 3D scanning systems has gradually become popular and widely used in industrial automation production processes. [0003] When performing 3D scanning on a target, it is often necessary to shoot the target from multiple different angles without dead ends, in order to realize the collection of all-round and complete 3D information of the target. If you set up a single camera, you can choose to keep the target fixed and move the camera to take pictures from multiple angles; or choose to keep the camera fixed and let the target rotate. If multiple camera...
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CPCG06T7/85G06T2207/30208
Inventor 李晓风许金林谭海波赵赫
Owner 安徽中科智链信息科技有限公司