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DAS
2008
Springer
13 years 7 months ago
Symbol Descriptor Based on Shape Context and Vector Model of Information Retrieval
In this paper we present an adaptive method for graphic symbol representation based on shape contexts. The proposed descriptor is invariant under classical geometric transforms (r...
T.-O. Nguyen, Salvatore Tabbone, Oriol Ramos Terra...
ICIP
2004
IEEE
14 years 7 months ago
Rotation and cropping resilient data hiding with zernike moments
Most digital data hiding schemes are sensitive to simple geometric attacks namely rotation, cropping, and scaling. Of these, rotational attacks possess the capability to not only ...
Palak K. Amin, Koduvayur P. Subbalakshmi
CVPR
2010
IEEE
14 years 2 months ago
Scale-Invariant heat kernel signatures for non-rigid shape recognition
One of the biggest challenges in non-rigid shape retrieval and comparison is the design of a shape descriptor that would maintain invariance under a wide class of transformations ...
Michael Bronstein, Iasonas Kokkinos
SPIESR
2001
141views Database» more  SPIESR 2001»
13 years 7 months ago
Image retrieval based on region shape similarity
This paper presents an image retrieval method based on region shape similarity. In our approach, we first segment images into primitive regions and then combine some of the primit...
Cheng Chang, Wenyin Liu, HongJiang Zhang
ICCV
2001
IEEE
14 years 8 months ago
Viewpoint Invariant Texture Matching and Wide Baseline Stereo
We describe and demonstrate a texture region descriptor which is invariant to affine geometric and photometric transformations, and insensitive to the shape of the texture region....
Frederik Schaffalitzky, Andrew Zisserman