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An Algorithm to Recognize the Target Object Contour Based on 2D Point Clouds by Laser-CCD-Scanning 被引量:1
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作者 MAO Hongyong SHI Duanwei +4 位作者 ZHOU Ji XU Pan CHEN Shiyu XU Yuxiang FENG Fan 《Wuhan University Journal of Natural Sciences》 CAS CSCD 2015年第4期355-361,共7页
For a vision measurement system consisted of laser-CCD scanning sensors, an algorithm is proposed to extract and recognize the target object contour. Firstly, the two-dimensional(2D) point cloud that is output by th... For a vision measurement system consisted of laser-CCD scanning sensors, an algorithm is proposed to extract and recognize the target object contour. Firstly, the two-dimensional(2D) point cloud that is output by the integrated laser sensor is transformed into a binary image. Secondly, the potential target object contours are segmented and extracted based on the connected domain labeling and adaptive corner detection. Then, the target object contour is recognized by improved Hu invariant moments and BP neural network classifier. Finally, we extract the point data of the target object contour through the reverse transformation from a binary image to a 2D point cloud. The experimental results show that the average recognition rate is 98.5% and the average recognition time is 0.18 s per frame. This algorithm realizes the real-time tracking of the target object in the complex background and the condition of multi-moving objects. 展开更多
关键词 laser-CCD scanning sensor 2D point cloud contour recognition improved Hu invariant moments BP neural network
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