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Human action recognition from multiple views based on view-invariant feature descriptor using support vector machines

机译:使用支持向量机基于视图不变特征描述符的多视图人类动作识别

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摘要

This paper presents a novel feature descriptor for multiview human action recognition. This descriptor employs the region-based features extracted from the human silhouette. To achieve this, the human silhouette is divided into regions in a radial fashion with the interval of a certain degree, and then region-based geometrical and Hu-moments features are obtained from each radial bin to articulate the feature descriptor. A multiclass support vector machine classifier is used for action classification. The proposed approach is quite simple and achieves state-of-the-art results without compromising the efficiency of the recognition process. Our contribution is two-fold. Firstly, our approach achieves high recognition accuracy with simple silhouette-based representation. Secondly, the average testing time for our approach is 34 frames per second, which is much higher than the existing methods and shows its suitability for real-time applications. The extensive experiments on a well-known multiview IXMAS (INRIA Xmas Motion Acquisition Sequences) dataset confirmed the superior performance of our method as compared to similar state-of-the-art methods
机译:本文提出了一种用于多视角人类动作识别的新颖特征描述符。该描述符采用从人体轮廓提取的基于区域的特征。为此,将人体轮廓以一定程度的间隔以径向方式划分为多个区域,然后从每个径向单元中获取基于区域的几何特征和Hu矩特征,以表达特征描述符。多类支持向量机分类器用于动作分类。所提出的方法非常简单,可以在不影响识别过程效率的情况下获得最新的结果。我们的贡献是双重的。首先,我们的方法通过简单的基于轮廓的表示实现了较高的识别精度。其次,我们的方法的平均测试时间为每秒34帧,这比现有方法要高得多,并且表明它适用于实时应用。在著名的多视图IXMAS(INRIA Xmas运动采集序列)数据集上进行的广泛实验证实,与类似的最新方法相比,我们的方法具有优越的性能

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