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This paper presents a method for representing and recognizing human actions based on pose similarity. For pose representation, we extend Histogram of Oriented Gradients (HOG) with directional statistics to obtain a HOG based descriptor with a smaller dimension. Then a directional similarity measurement for the proposed descriptor is put forward to provide a measure consistent with human perception...
Human behavior analysis is an important area of research in computer vision and is also driven by a wide spectrum of applications, such as smart video surveillance and human-computer interface. In this paper, we present a novel approach for human behavior analysis. Two research challenges, motion representation and behavior recognition, are addressed. A novel motion descriptor, which is an improved...
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