Ms. Wen Wen Li Profile

Wen Wen Li

at Jilin Univ

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Proceedings Article | 26 October 2013 Paper

Design of a hand-shape acquisition and recognition system based on DSP

Wenwen Li, Fu Liu, Lei Gao

Proceedings Volume 8921, 89211D (2013) https://doi.org/10.1117/12.2031374

KEYWORDS: Digital signal processing, Image processing, Wavelets, Image acquisition, Image segmentation, Feature extraction, Databases, Video processing, Video, Image classification

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In this paper, we design a hand-shape image acquisition and processing system based on DSP for solving the problem of hand-shape recognition. Acquisition configuration was designed, and the key parts (encoder, decoder, memory chip etc.) are selected. And a new method for hand-shape recognition based on wavelet moment is presented to overcome some shortage in present method for hand shape recognition. Firstly, image processing including binary processing and segment of hand silhouette are used, and then translation and scale normalization algorithms is implemented on the palms and fingers image. After that the wavelet moment characteristics of image are extracted. At last, support vector is achieved by training 100 images data in images database, 10 testing images were selected randomly to verify validity and feasibility of algorithms. Experimental results indicate that the 10 testing images are all classified correctly. The new method of extracting hand shape wavelet moment as characteristic matrix is easy to realize with characteristic of high utility and accuracy, and solve the problem of translation, rotation and scaling during the image acquisition process without positioning aids.

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