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TMI
1998
175views more  TMI 1998»
13 years 7 months ago
A Harmonic Decomposition Reconstruction Algorithm for Spatially-Varying Focal Length Collimators
—Spatially varying focal length fan-beam collimators can be used in single photon emission computed tomography to improve detection efficiency and to reduce reconstruction artif...
Jiangsheng You, Zhengrong Liang, Shanglian Bao
CVPR
2005
IEEE
14 years 9 months ago
Automatic Face Recognition for Film Character Retrieval in Feature-Length Films
The objective of this work is to recognize all the frontal faces of a character in the closed world of a movie or situation comedy, given a small number of query faces. This is ch...
Ognjen Arandjelovic, Andrew Zisserman
SIBGRAPI
2009
IEEE
14 years 2 months ago
Detecting Buildings in Historical Photographs Using Bag-of-Keypoints
—The strategies for the preservation of historical documents can include their digitization, which is an effective way to make them publicly available while preventing degradatio...
Natalia C. Batista, Ana Paula Brandão Lopes...
ICIP
2005
IEEE
14 years 9 months ago
Comparison of invariant descriptors for object recognition
This paper deals with the performance evaluation of three object invariant descriptors : Hu moments, Zernike moments and Fourier-Mellin descriptors. Experiments are conducted on a...
Anant Choksuriwong, Bruno Emile, Hélè...
CVPR
2003
IEEE
14 years 9 months ago
Representation and Detection of Deformable Shapes
We describe some techniques that can be used to represent and detect deformable shapes in images. The main difficulty with deformable template models is the very large or infinite...
Pedro F. Felzenszwalb