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In this paper, we proposed a new algorithm based on independent keypoints databases for indoor place recognition. In analogy with set operation, a new kind of operations for keypoints sets are defined to describe the process of independent keypoints database establishment and place classification. To obtain the databases, keypoints are firstly extracted from sample images whose class are known, and...
Considering stability problems of the current corridor recognition algorithm based on laser scanner, this paper proposes a method for mobile robot fast laser-based corridor recognition. Firstly, Median filter is used to deal with the laser scan to reduce the noise. Then, it employs segmentation method to cluster the data to remove some isolated points. After that, it is feasible to calculate the direction...
A real-time facial expressions recognition system is developed for human-robot interaction of service robot. The proposed system is mainly composed of two subsystems: one for Active shape model(ASM) motion extraction, and one for the classification of the estimated motion. The system first uses a cascade classifier to locate the potential face regions from video frame. Then, ASM is automatically initialized...
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