Perspective imaging method based on laser scanning distance measuring instrument and multiple cameras

Abstract

The invention relates to a perspective imaging method based on a laser scanning distance measuring instrument and multiple cameras. A traditional method that only an image sensor is adopted is abandoned. The laser scanning distance measuring instrument is introduced to obtain point cloud data of a scene on the basis that the image sensor is used for obtaining image information, the depth information of the scene is obtained according to the point cloud data, focus depth selection is carried out according to the depth information, and time complexity is reduced. Meanwhile, the depth information of the scene is utilized, obtained projection points can be screened, and the definition of a perspective imaging result can be improved. Due to the fact that the image information of the scene is obtained through the panorama cameras, and a multi-view angle image is obtained, the multi-view perspective imaging result can be obtained. The test is carried out on a self-established database, and the test result shows that by means of the method, a clearer multi-view perspective imaging result can be rapidly and effectively obtained.

Description

technical field [0001] The invention relates to a synthetic aperture perspective imaging method, in particular to a perspective imaging method based on fusion of a laser scanning range finder and multiple cameras. Background technique [0002] Camera array perspective imaging is an important research topic in the field of computer vision, and has a wide range of applications in video surveillance and hidden target detection. The document "Synthetic Aperture Imaging using Pixel Labeling via Energy Minimization, PR, 46(1): 174-187, 2013" discloses a synthetic aperture imaging method based on energy minimization pixel labeling. This method transforms perspective imaging into a classification problem of foreground points / non-foreground points. First, the energy minimization method is used to mark the foreground pixels belonging to the occluder for each pixel under the camera's perspective, and then, at a given focus depth, the non-foreground The pixel points are averaged to obt...

AI Technical Summary

Problems solved by technology

Although this method can image the perspective of the specified depth target, because the method uses the method of energy-minimized pixel marking to mark the foreground, a large amount of calculation is required, so the time complexity is high.

At the same time, due to the accuracy of marking, there are large errors in the marking work of the foreground, which affects the clarity of perspective imaging

In addition, this method only performs traditional single-lens perspective imaging, which is not applicable to perspective imaging of large scenes with multiple perspectives

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