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融合多特征和压缩感知的手势识别
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Hand Posture Recognition Based on Multi-feature and Compressive Sensing
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    摘要:

    基于压缩感知理论,提出了一种新的手势识别方法,考虑到单个特征的局限性,结合Zernike矩和HOG描述符从全局和局部角度描述手势外观和形状.训练阶段提取手势训练图像的Zernike矩和HOG特征构建字典,识别阶段提取待测样本特征,将其表示成相应训练字典的稀疏线性组合,采用求解l1范数的最优化问题实现分类.实验结果证明,和目前应用较广的手势识别方法相比,该方法具有较强的竞争性,而且通过融合两种形状特征,对光照、尺度、旋转等变化更具鲁棒性.

    Abstract:

    A method was introduced for hand posture recognition based on compressive sensing.Considering the limitations of a single feature, Zernike moment and HOG descriptors were fused to improve the robustness.Firstly, we constructed training dictionaries according to the characteristics, then the candidate target was expressed as a sparse combination of the corresponding training dictionary, and classification results were done through solving a l1-norm based optimization problem.The proposed method can take full advantage of each feature, which is robust to rotation, noise and varying illumination.Experiment results show that the algorithm is competitive to the state-of-the-art hand posture recognition methods, and is suitable for real-time application.

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张汗灵, 李红英,周 敏.融合多特征和压缩感知的手势识别[J].湖南大学学报:自然科学版,2013,40(3):87~92

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