Three-dimensional space special-shaped curved surface rotation calibration solid model and three-dimensional camera rotation calibration method
A special-shaped surface, three-dimensional space technology, applied in image data processing, instruments, calculations, etc., can solve problems such as increasing development time and debugging time, increasing technical difficulties, and long scanning time, achieving low cost, low production cost, and operation. simple effect
Pending Publication Date: 2019-07-26
深圳群宾精密工业有限公司
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Problems solved by technology
[0002] At present, in the field of 3D vision, 3D calibration technology is generally planar calibration, that is, the camera scans the target object horizontally, but the object exists in the form of three-dimensional space, so the camera cannot image all sides of the object at one time, or requires a combination of multiple cameras Splicing after imaging, or requiring a single camera to scan and image multiple times before splicing, this technology will lead to long scanning time or high cost, loss of accuracy in splicing, and this will greatly increase technical difficulties, increase development time and debugging time
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[0026] In order to describe the technical solution of the present invention more clearly and completely, the present invention will be further described below in conjunction with the accompanying drawings.
[0027] Please refer to Figure 1 to Figure 4 The present invention proposes a three-dimensional space special-shaped curved surface rotating calibration solid model for camera calibration, the three-dimensional space special-shaped curved surface rotating calibration solid model includes: an arc-shaped plate 10 and a plurality of positioning identification cylinders 20, the arc-shaped plate 10 There are a plurality of equidistant first installation holes 11, the number of the first installation holes 11 corresponds to the number of the positioning identification cylinders 20, and the positioning identification cylinders 20 are partially accommodated in the first installation holes 11 and is fixedly connected with the arc plate 10.
[0028] In this embodiment, the arc-shap...
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The invention provides a three-dimensional space special-shaped curved surface rotation calibration solid model and a 3D camera rotation calibration method. The three-dimensional spatial special-shaped curved surface rotation calibration solid model comprises an arc-shaped plate and a plurality of positioning identification column bodies. Mutiples equidistant first mounting holes are formed in thearc-shaped plate. The number of the first mounting holes is in one-to-one correspondence with the number of the positioning identification columns, and the positioning identification columns are partially accommodated in the first mounting holes and are fixedly connected with the arc-shaped plate. The three-dimensional space special-shaped curved surface rotation calibration solid model is easy to machine. Machining can be completed only through turning, milling and drilling of a common machine tool. No complex machining process is needed, and production cost is low. Camera calibration can becompleted only through one laser 3D camera. Common plane calibration technology needs three or more than three laser 3D cameras, or images are spliced after three or more than three times of scanning. Compared with the common plane calibration technology, the cost is lower, and the efficiency is higher.
Description
technical field [0001] The invention relates to the field of camera calibration, and mainly relates to the calibration of a special-shaped curved surface in a camera calibration space, in particular to a three-dimensional space special-shaped curved surface rotation calibration solid model and a 3D camera rotation calibration method. Background technique [0002] At present, in the field of 3D vision, 3D calibration technology is generally planar calibration, that is, the camera scans the target object horizontally, but the object exists in the form of three-dimensional space, so the camera cannot image all sides of the object at one time, or requires a combination of multiple cameras Splicing after imaging, or requiring a single camera to scan and image multiple times before splicing, this technology will lead to long scanning time or high cost, loss of accuracy in splicing, and this will greatly increase technical difficulties, increase development time and debugging time ...
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Login to View More IPC IPC(8): G06T7/80
CPCG06T7/85G06T2207/10012G06T2207/10028
Inventor 黄延政陈方
Owner 深圳群宾精密工业有限公司