The basic principles of SURF algorithm and MeanShift algorithm are introduced. MeanShift tracking algorithm is applied to visual mouse technology. A sightline system design method based on OpenCV technology is proposed; an improved MeanShift algorithm for automatic mouth area initialization based on SURF algorithm is proposed. Experimental results show that the algorithm matching recognition effect is good, and the lip tracking system based on MeanShift tracking algorithm has good real-time performance and good robustness.
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