期刊
COMPUTER VISION AND IMAGE UNDERSTANDING
卷 141, 期 -, 页码 126-137出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.cviu.2015.07.009
关键词
Recognition; Hand gestures; Image descriptor; Video descriptor; Patterns; Segmentation; Spatio-temporal; LBP; SVM; Classification
资金
- Ministerio de Economia y Competitividad of the Spanish Government [TEC2010-20412, TEC2013-48453]
A more natural, intuitive, user-friendly, and less intrusive Human Computer interface for controlling an application by executing hand gestures is presented. For this purpose, a robust vision-based hand-gesture recognition system has been developed, and a new database has been created to test it. The system is divided into three stages: detection, tracking, and recognition. The detection stage searches in every frame of a video sequence potential hand poses using a binary Support Vector Machine classifier and Local Binary Patterns as feature vectors. These detections are employed as input of a tracker to generate a spatio-temporal trajectory of hand poses. Finally, the recognition stage segments a spatio-temporal volume of data using the obtained trajectories, and compute a video descriptor called Volumetric Spatiograms of Local Binary Patterns (VS-LBP), which is delivered to a bank of SVM classifiers to perform the gesture recognition. The VS-LBP is a novel video descriptor that constitutes one of the most important contributions of the paper, which is able to provide much richer spatio-temporal information than other existing approaches in the state of the art with a manageable computational cost. Excellent results have been obtained outperforming other approaches of the state of the art. (c) 2015 Elsevier Inc. All rights reserved.
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