Hand shape recognition based on coherent distance shape contexts

Rong Xiang Hu, Wei Jia, Dapeng Zhang, Jie Gui, Liang Tu Song

Research output: Journal article publicationJournal articleAcademic researchpeer-review

29 Citations (Scopus)

Abstract

In this paper, we propose a novel hand shape recognition method named as Coherent Distance Shape Contexts (CDSC), which is based on two classical shape representations, i.e., Shape Contexts (SC) and Inner-distance Shape Contexts (IDSC). CDSC has good ability to capture discriminative features from hand shape and can well deal with the inexact correspondence problem of hand landmark points. Particularly, it can extract features mainly from the contour of fingers. Thus, it is very robust to different hand poses or elastic deformations of finger valleys. In order to verify the effectiveness of CDSC, we create a new hand image database containing 4000 grayscale left hand images of 200 subjects, on which CDSC has achieved the accurate identification rate of 99.60% for identification and the Equal Error Rate of 0.9% for verification, which are comparable with the state-of-the-art hand shape recognition methods.
Original languageEnglish
Pages (from-to)3348-3359
Number of pages12
JournalPattern Recognition
Volume45
Issue number9
DOIs
Publication statusPublished - 1 Sep 2012

Keywords

  • Biometrics
  • Hand shape
  • Identification
  • Shape contexts
  • Verification

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Artificial Intelligence

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