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CVPR
2008
IEEE
16 years 8 months ago
Conjugate rotation: Parameterization and estimation from an affine feature correspondence
When rotating a pinhole camera, images are related by the infinite homography KRK-1 , which is algebraically a conjugate rotation. Although being a very common image transformatio...
Christian Beder, Kevin Köser, Reinhard Koch
BMVC
2001
15 years 8 months ago
Illumination technique for optical dynamic range compression and offset reduction
This paper presents a novel illumination technique for image processing in environmentswhich are characterized by large intensity fluctuations and hence a high optical dynamic ra...
C. Koch, S.-B. Park, Tim J. Ellis, A. Georgiadis
ICASSP
2010
IEEE
15 years 6 months ago
A nonnegative sparsity induced similarity measure with application to cluster analysis of spam images
Image spam is an email spam that embeds text content into graphical images to bypass traditional spam filters. The majority of previous approaches focus on filtering image spam ...
Yan Gao, Alok N. Choudhary, Gang Hua
ICPR
2008
IEEE
16 years 7 months ago
Object detection at multiple scales improves accuracy
For detecting objects in natural visual scenes, several powerful image features have been proposed which can collectively be described as spatial histograms of oriented energy. Th...
Stanley M. Bileschi
DAS
2008
Springer
15 years 8 months ago
Towards Whole-Book Recognition
We describe experimental results for unsupervised recognition of the textual contents of book-images using fully automatic mutual-entropy-based model adaptation. Each experiment s...
Pingping Xiu, Henry S. Baird