Calibration method of line structured light three-dimensional measurement system
A technology of three-dimensional measurement and line-structured light, which is applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of small application range, large amount of calculation, and low efficiency, and achieve high calibration efficiency, low hardware requirements, and simplified calculations volume effect
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[0044] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0045] Such as figure 1 As shown in the present embodiment, the line structure light 3D measurement system to be marked is mainly composed of a camera and a projector. Projector can projection 1024 vertical stripes 1 ~ S 1024 A set of structural optical coded patterns sequences sequentially form a coded structural light sequence, and the camera resolution is 640 * 480.
[0046] Using a flat calibration plate to implement the calibration of the three-dimensional measurement system of the line structure, the planar calibration plate should be as flat as possible to reduce the calibration error; the area should be large enough to make all structural optical stripes should be simultaneously imaging on the plate; in this example Plane calibration board 1 figure 2 As shown, mounted on the active bracket 3, placed on the ground can move in any direction. The main bod...
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