Generating method of virtual view image of surveying system of vehicular multi-lens camera

A virtual viewpoint and image generation technology, applied in stereoscopic systems, image communication, image analysis, etc., can solve problems such as the accuracy of virtual viewpoint image synthesis, and achieve the effect of saving computing time

Inactive Publication Date: 2011-02-16
宁波舜宇智行传感技术有限公司
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Problems solved by technology

[0030] The present invention aims to solve the problem of synthesis accuracy of virtual viewpoint images in the vehicle-mounted surrou

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  • Generating method of virtual view image of surveying system of vehicular multi-lens camera

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[0064] 1. Offline color calibration part

[0065] In order to distinguish the obstacle area and the road surface area, the present invention calibrates the color characteristics of the camera in advance and generates a color space conversion look-up table (Color Look-up table: CLUT), which provides high-speed processing means for online processing.

[0066] There are many factors that interfere with the segmentation of road surface areas and non-pavement areas in normal roads and parking lots, including shadows, road surfaces with different color textures, road marking lines, etc. For this reason, the present invention introduces the concept of color invariance described in Non-Patent Document 1. Most of the natural light and artificial light, including sunlight, satisfy the Lambertian light model. This light hits the road and object surfaces and then reflects into the vehicle camera. After passing through the CCD or CMOS sensor, it is converted into an electrical signal, whic...

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Abstract

The invention provides a generating method of a virtual view image of a surveying system of a vehicular multi-lens camera, which can more accurately finish the virtual view image provided for a driver by the surveying system. The invention solves the influence on panorama by a three-dimensional obstacle existing in a scene, can acutely detect the grounding contour of the three-dimensional obstacle at a high speed to fix the distance between the obstacle and the vehicle and send out an approaching alarm in time. Meanwhile, the invention distinguishes three-dimensional obstacle areas of a road area and a non-road area, respectively transforms view points, avoids calculating the three-dimensional space positions of all points on the virtual view image in the prior art as well as actual camera coordinates, saves the calculation time and avoids the influence of externally calibrated accuracy of each camera on the accuracy of the synthesized image.

Description

technical field [0001] The invention relates to a vehicle-mounted multi-eye camera surround-view system, in particular to a virtual viewpoint image method in the vehicle-mounted multi-eye camera 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 rapi...

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Application Information

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IPC IPC(8): G06T7/00H04N13/00G06T17/00
Inventor 胡振程
Owner 宁波舜宇智行传感技术有限公司
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