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In this paper raw cotton foreign fibers on line detecting and clearing system is designed by using CCD vision sensor, and it achieves the online detection and removal of foreign fibers of raw cotton before the cotton opening and cleaning process, and the model machine is produced. Through experimental verification, the model machine works well, and detection rate of small foreign fiber is up to more...
A method of measuring the preceding vehicle distance based on trilinear method is proposed in the paper. According to the theory and method of the computer vision, three mutually non-coincident parallel lines have same vanishing point and different slopes on imaging plane. Without iteration and optimization calculation, an analytic expression of the external parameters of a camera??vanishing point...
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