444 search results - page 9 / 89 » In Search of Illumination Invariants |
103
Voted
SIAMIS
2011
14 years 10 days ago
2011
We analyze the illumination invariance of the level lines of an image. We show that if the scene surface has Lambertian reflectance and the light is directed, then a necessary and...
85
Voted
ICIP
2008
IEEE
15 years 4 months ago
2008
IEEE
This paper introduces a novel approach to the problem of active contour-based segmentation through the use of complexvalued wavelets. In traditional active contour-based segmentat...
79
Voted
ECCV
1998
Springer
15 years 11 months ago
1998
Springer
We describe a new projectively invariant representation of disjoint contour groups which is suitable for shape-based retrieval from an image database. It consists of simultaneous ...
BMVC
2001
14 years 12 months ago
2001
This paper tackles the problem of robust change detection in image sequences from static cameras. Motion cues are detected using frame differencing with an adaptive background est...
ICCV
2007
IEEE
15 years 11 months ago
2007
IEEE
We present an approach for illumination and affineinvariant point matching using ordinal features. Ordinal measures for matching only consider the order between pixels and not the...