New method for generating vehicle-mounted driving assisting image

Abstract

The invention relates to a new method for generating a vehicle-mounted driving assisting image. The new method aims at solving the problem that in a vehicle-mounted look-around system, the imaging effects of images of nearby views, distant views and three-dimensional objects on a virtual camera can not respectively have the perspective effect truth. According to the new method, it is proposed that the mapping relation between a practical camera and the virtual camera is built through a spherical virtual projective plane, several virtual camera placement modes are proposed according to different vehicle driving states, the burden that coordinate transformation needs to be carried out when a driver views images of the practical camera can be reduced through the virtual camera placement modes, and easily-identified vehicle surrounding images are also provided for the driver. In order to quicken the processing speed, a forward mapping table is proposed in the new method: firstly, a mapping table for mapping the images of the practical camera to the spherical virtual projective plane is built, then the mapping table is mapped to the spherical virtual projective plane again according to the position of the virtual camera, and therefore the forward mapping table for mapping the images of the practical camera to the images of the virtual camera is obtained.

Description

technical field [0001] The invention relates to a vehicle-mounted multi-eye camera surround-view system, in particular to a calculation method for a virtual camera image of the vehicle-mounted surround-view system. Background technique [0002] In today's society, cars have become an indispensable means of transportation. While people enjoy the convenience and speed brought by automobiles, automobile traffic accidents, environmental pollution caused by automobile exhaust emissions, and problems caused by traffic congestion have become increasingly serious global social problems. Therefore, there is a great market potential for reducing traffic accidents and improving automobile safety by using various advanced automobile safety technologies, equipment and concepts. [0003] After the 1990s, with the wide application of electronic technology, control technology, sensor technology and new materials in automobile products, automobile safety technology has developed more rapidl...

AI Technical Summary

Problems solved by technology

Its disadvantages are as follows: 1) the actual camera image acquisition time in the time cost is completely wasted, 2) the size of the mapping table and the scanning time are determined by the size of the virtual camera image, and when the size of the virtual camera image is large, the corresponding mapping table is also If it is larger, the scan time will be longer

Images