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Object projection method and object projection system

A projection system and projection technology, applied in the field of target projection systems, can solve problems such as difficulties in correctness verification

Active Publication Date: 2015-02-18
SHENZHEN TAISHAN SPORTS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an affine transformation between a target and a single camera by using two cameras for the defect that the three-dimensional coordinate recognition of the target projection system in the prior art is relatively difficult, and the correctness verification of the matching and establishment is relatively difficult. The target projection method and the target projection system that use this method to verify the correctness of three-dimensional coordinate recognition, matching and establishment based on the projected image

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  • Object projection method and object projection system

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Embodiment Construction

[0052] The preferred embodiments of the present invention will be described in detail below with reference to the drawings.

[0053] figure 1 It is a structural schematic diagram of a preferred embodiment of the target projection system of the present invention. Such as figure 1 As shown, in this embodiment, a target projection system provided by the present invention includes a processing unit 1, an imaging unit 2, and a verification unit 3. The imaging unit 2 includes a first camera 21 and a second camera 22, and the verification unit 3 Including a verification module 31 and a third camera 32; processing unit 1: used to obtain matching point pairs (P 0 and P 1 ) corresponding three-dimensional coordinates; and obtain the affine projection matrix of the third camera 32; verification module 31: for the affine projection matrix of the third camera 32 and the target object in the first camera 21 and the second camera 22 The matching point pair (P 0 and P 1 ) corresponding ...

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Abstract

An object projection method includes: acquiring the three-dimensional coordinates corresponding to the matching point-pair (P0 and P1) of the object in the first video camera (21) and the second video camera (22); acquiring the affine projection matrix of the third video camera (32); calculating the theoretical barycentric coordinates of the object in the third video camera (32); calculating the theoretical projection size of the object in the third video camera (32); acquiring the actual barycentric coordinates of the projection of the object in the third video camera (32); acquiring the actual projection size of the object in the third video camera (32); and judging whether the three-dimensional coordinates corresponding to the matching point-pair (P0 and P1) is right or not. An object projection system using the method is also provided.

Description

technical field [0001] The invention relates to an object projection method and an object projection system using the method, more specifically, an object projection method with a verification process and an object projection system using the method. Background technique [0002] In a system that uses a camera as the source of information, it is the key to correctly extract the available information from the image. The judgment of the correctness of target recognition mainly depends on information such as the shape, color and size of the target, and the matching of recognized targets between two cameras mainly depends on epipolar constraints and sequential consistency constraints. In the system using binocular cameras, the principle of parallax is used to realize the establishment of three-dimensional objects. The disadvantage of this system is that it is more difficult to identify the target, match and verify the correctness of the establishment. Contents of the inventio...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B35/00
CPCG03B35/08
Inventor 吴迪陈光
Owner SHENZHEN TAISHAN SPORTS TECH CO LTD
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