A Straight Line Detection Method based on Chain Codes
Straight line detection is still a challenging task in image processing. Though many methods have been put forward before, most of them have some limitations. In this paper, we propose a novel method for straight line detection based on chain codes. Different from the former methods based on chain codes, this method doesnt rely too much on the Freemans criteria. A more robust and reasonable criterion is adopted for detection, and an algorithm is presented to make this criterion works. Then we seek for a solution to the problem of corner points locating error that exists in all the chain codes tracking methods. We also suggest a criterion for correcting corner points, and present a strategy which can save computation time. The results show that our method has better performance than the traditional methods.
straight line detection corner points correction chain codes
Fan Li Guozhen Li
School of Geographical Sciences and Urban Planning, Arizona State University, USA, 85281 School of Information Science & Technology, Sun Yat-sen University, China, 510275
国际会议
Third International Conference on Digital Image Processing(ICDIP 2011)(第三届数字图像处理国际会议)
成都
英文
274-278
2011-04-15（万方平台首次上网日期，不代表论文的发表时间）