NDLI: Global three-dimensional-mesh indexing based on structural analysis and geometrical signatures

Content Provider	IET Digital Library
Author	Hachani, Meha Zaid, Azza Ouled Puech, William
Abstract	This study presents a new local feature matching approach that relies upon Reeb graph (RG)-based representation as well as a simple and accurate similarity estimation. The central contribution of this work is to reinforce the topological consistency conditions of the graph-based description. Formally, the RGs are enriched with geometry signatures based on parameterisation approaches. After RG construction, the shape is segmented into Reeb charts of controlled topology mapped to its canonical planar domain. Then, two stretching signatures, corresponding to the area and angle distortion, are determined and taken as three-dimensional-shape descriptor. The similarity estimation is performed in two steps. The first one consists in forming the pairs of similar Reeb charts, according to the minimal distance between their corresponding signatures. The second step is to measure the global similarity which quantifies the similitude degree between all the matched Reeb charts. Retrieval experiments conducted on four publicly available databases have shown that the proposed matching scheme yields satisfactory results. Among observations, it can be noticed that despite its rapidity, the method provides an overall retrieval efficiency gain compared to very recent state-of-the-art methods.
Starting Page	926
Ending Page	936
Page Count	11
ISSN	17519632
Volume Number	9
e-ISSN	17519640
Issue Number	Issue 6, Dec (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-cvi/9/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-cvi.2014.0250
Journal	IET Computer Vision
Publisher Date	2015-12-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Angle Distortion Canonical Planar Domain Combinatorial Mathematics Computer Vision And Image Processing Technique Controlled Topology Mapping Estimation Theory Feature Matching Approach Geometrical Signature Global Three-dimensional-mesh Indexing Graph Theory Image Matching Image Recognition Image Representation Image Retrieval Image Segmentation Parameterisation Approach Reeb Chart Reeb Graph Based Representation RG-based Representation Shape Segmentation Statistics Stretching Signature Structural Analysis Three-dimensional-shape Descriptor
Content Type	Text
Resource Type	Article
Subject	Computer Vision and Pattern Recognition Software

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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