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PAMI
2012
7 years 2 months ago
LDAHash: Improved Matching with Smaller Descriptors
—SIFT-like local feature descriptors are ubiquitously employed in such computer vision applications as content-based retrieval, video analysis, copy detection, object recognition...
Christoph Strecha, Alexander A. Bronstein, Michael...
ICASSP
2011
IEEE
8 years 3 months ago
Approximation of pattern transformation manifolds with parametric dictionaries
The construction of low-dimensional models explaining highdimensional signal observations provides concise and efficient data representations. In this paper, we focus on pattern ...
Elif Vural, Pascal Frossard
ICPR
2010
IEEE
8 years 10 months ago
Shape-Based Image Retrieval Using a New Descriptor Based on the Radon and Wavelet Transforms
In this paper, the Radon transform is used to design a new descriptor called Phi-signature invariant to usual geometric transformations. Experiments show the effectiveness of the m...
Nafaa Nacereddine, Salvatore Tabbone, Djemel Ziou,...
PAMI
2010
202views more  PAMI 2010»
8 years 10 months ago
DAISY: An Efficient Dense Descriptor Applied to Wide-Baseline Stereo
—In this paper, we introduce a local image descriptor, DAISY, which is very efficient to compute densely. We also present an EM-based algorithm to compute dense depth and occlusi...
Engin Tola, Vincent Lepetit, Pascal Fua
TOG
2002
116views more  TOG 2002»
8 years 11 months ago
Linear combination of transformations
Geometric transformations are most commonly represented as square matrices in computer graphics. Following simple geometric arguments we derive a natural and geometrically meaning...
Marc Alexa
ISW
2000
Springer
9 years 3 months ago
A Watermarking Scheme Based on the Characteristic of Addition among DCT Coefficients
Generally, low frequency domain may be useful to embed a watermark in an image. However, if a watermark is embedded into low frequency components, blocking effects may occur in the...
Minoru Kuribayashi, Hatsukazu Tanaka
AVSS
2008
IEEE
9 years 6 months ago
Experimental Analysis of Face Recognition on Still and CCTV Images
Although automatic identity inference based on faces has shown success when using high quality images, for CCTV based images it is hard to attain similar levels of performance. Fu...
Shaokang Chen, Erik Berglund, Abbas Bigdeli, Conra...
ICIP
2001
IEEE
10 years 1 months ago
Geometric hashing techniques for watermarking
In this paper we introduce the idea of using Computer Vision techniques for improving and enhancing watermarking capabilities. Specifically, we incorporate Geometric Hashing techn...
Hagit Zabrodsky Hel-Or, Y. Yitzhaki, Yacov Hel-Or
CVPR
2008
IEEE
10 years 2 months ago
ANSIG - An analytic signature for permutation-invariant two-dimensional shape representation
Many applications require a computer representation of 2D shape, usually described by a set of 2D points. The challenge of this representation is that it must not only capture the...
José J. Rodrigues, Pedro M. Q. Aguiar, Jo&a...
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