Title
Features extraction from hand images based on new detection operators
Abstract
Human hand shape features extraction from image frame sequences is one of the key steps in human hand 2D/3D tracking system and human hand shape recognition system. In order to satisfy the need of human hand tracking in real time, a fast and accurate method for acquirement of edge features from human hand images without consideration of hand over face is put forward in this paper. The proposed approach is composed of two steps, the coarse location phase (CLP) and the refined location phase (RLP) from coarseness to refinement. In the phase of CLP, the hand contour is approximately described by a polygon with concave and convex, an approach to obtaining hand shape polygon using locating points and locating lines is meticulously discussed. Then, a coarse location (CL) algorithm for extraction of interested hand shape features, such as contour, fingertips, roots of fingers, joints and the intersection of knuckle on different fingers, is proposed. In the phase of RLP, a multi-scale approach is introduced into our study to refine the features obtained by the CL algorithm. By means of defining the response strength of different types of features, a refined location (RL) algorithm is proposed. The major contribution of this paper is that the novel detection operators for features of hand images are presented in the above two steps, which have been successfully applied to our 3D hand shape tracking system and 2D hand shape recognition system. A number of comparative studies with real images and online videos demonstrate that the proposed method can extract the three defined human hand image features with high accuracy and high speed.
Year
DOI
Venue
2011
10.1016/j.patcog.2010.08.007
Pattern Recognition
Keywords
Field
DocType
new detection operator,hand shape features extraction,hand image,hand shape polygon,hand shape tracking system,multi-scale space,human hand,hand contour,features extraction,human hand image feature,hand gesture recognition,human hand tracking,hand shape recognition system,human hand shape,human hand shape recognition,human hand image,comparative study,scale space,satisfiability,real time,feature extraction,tracking system,image features
Signal processing,Computer vision,Polygon,Pattern recognition,Feature (computer vision),Tracking system,Gesture recognition,Regular polygon,Feature extraction,Artificial intelligence,Real image,Mathematics
Journal
Volume
Issue
ISSN
44
5
Pattern Recognition
Citations 
PageRank 
References 
21
0.84
0
Authors
8
Name
Order
Citations
PageRank
Zhiquan Feng14912.93
Bo Yang251952.33
Yuehui Chen31167106.13
Yanwei Zheng4507.62
Tao Xu5284.37
Yi Li6373.93
Ting Xu7210.84
Deliang Zhu8241.59