Single-camera spherical mirror reflection imaging projection device

Abstract

The invention relates to a single-camera spherical mirror reflection imaging projection device, which is composed of a spherical mirror, a camera, a data transmission line and a computer. According to the imaging mapping model, a three-dimensional space point P forms a spherical reflection mirror image virtual point through a spherical reflector, the three-dimensional space point P is shot by a camera, an image point is formed in an image plane, an image is stored in a computer through a data transmission line, and image pixel coordinates of the image point are calculated according to a general single-camera spherical mirror reflection imaging model. A quantitative projection model of single-camera spherical mirror reflection imaging at any position and angle is established for the first time, and projection imaging of a space point reflected to a camera plane image point through the spherical mirror is realized.

Description

technical field [0001] The invention belongs to the technical field of visual imaging, and relates to a single-camera spherical mirror reflective imaging projection device. Background technique [0002] With the continuous improvement of application requirements for visual measurement and the complexity of measurement scenarios, requirements for low cost, miniaturization, light weight, large field of view, and fast measurement have been put forward for stereo vision sensors. However, the current binocular vision measurement method is mainly aimed at strongly constrained scenes with uniform illumination, no occlusion or less reflection, and is only suitable for 3D measurement requirements under specific conditions, such as indoor environments. The single-camera mirrored binocular vision measurement mode combines the advantages of traditional binocular vision measurement. Compared with the traditional binocular measurement mode, it has the advantages of simple system structure...

AI Technical Summary

Problems solved by technology

The above studies have established a projection model for the single-camera catadioptric structure, but the defect is that the camera and the catadioptric mirror are required to be coaxial in the model, but it is difficult to guarantee it in actual assembly, resulting in imaging deviation. At the same time, the central catadioptric structure has applications. Limitations, it is difficult to flexibly apply to different scenarios in terms of imaging direction and field of view

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