期刊
IMAGING SCIENCE JOURNAL
卷 66, 期 2, 页码 98-105出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/13682199.2017.1380356
关键词
Affine transformation; Bull's Eye Retrieval; datasets; image histogram; laws of texture energy; shape retrieval
Feature characterization schemes catering shape indexing and retrieval have been a subject undergoing intense study in computer vision. Here, a feature characterization scheme is presented using the Laws of Texture Energy Measures targeting shape retrieval. The LTEM-based descriptor refines edges of shape images to produce highly discriminative features. Later, a feature representation arrangement packs it into global-structural shape histograms that are, subsequently, used for matching and retrieval. Exhaustive experiments of the resulting descriptor across the MPEG-7, Tari-1000 and Kimia's 99 datasets render consistent Bull's Eye Retrieval rate of 90%, revealing its highly distinctive nature among the intra-and inter-shape classes. Moreover, the witnessed BER clearly indicates that the descriptor is robust to different affine transformations.
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