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EXTRACTION OF LANE-RELATED INFORMATION AND A REALTIME IMAGE PROCESSING ONBOARD SYSTEM
이운근,이준웅 한국자동차공학회 2005 International journal of automotive technology Vol.6 No.2
The purpose of this paper is two-fold: 1) A novel algorithm in order to extract lane-related informationfrom road images is presented; 2) Design specifications of an image processing onboard unit capable of extracting lane-related information in real-time is also presented. Obtaining precise information from road images requires many featuresdue to the effects of noise that eventually leads to long processing time. By exploiting a FPGA and DSP, we solve theproblem of real-time processing. images relies largely on edge features, theFPGA is adopted in the hardware design. The schematic configuration of the FPGA is optimized in order to perform 3 3Sobel edge extraction. The DSP carries out high-level image processing of recognition, decision, estimation, etc. Theproposed algorithm uses edge features to define an Edge Distribution Function (EDF), which is a histogram of edgemagnitude with respect to the edge orientation angle. The EDF enables the edge-related information and lane-related tobe connected. The performance of the proposed system is verified through the extraction of lane-related information. Thegorithm and a processing speed of more than 25 frames persecond, which is considered quite successful.