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» In Search of Illumination Invariants
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BMVC
1998
13 years 9 months ago
Color Invariant Snakes
Snakes provide high-level information in the form of continuity constraints and minimum energy constraints related to the contour shape and image features. These image features ar...
Theo Gevers, Sennay Ghebreab, Arnold W. M. Smeulde...
PAMI
2008
172views more  PAMI 2008»
13 years 7 months ago
A Theory Of Frequency Domain Invariants: Spherical Harmonic Identities for BRDF/Lighting Transfer and Image Consistency
This paper develops a theory of frequency domain invariants in computer vision. We derive novel identities using spherical harmonics, which are the angular frequency domain analog ...
Dhruv Mahajan, Ravi Ramamoorthi, Brian Curless
BMVC
2002
13 years 10 months ago
Invariant Features from Interest Point Groups
This paper approaches the problem of finding correspondences between images in which there are large changes in viewpoint, scale and illumination. Recent work has shown that scale...
Matthew Brown, David G. Lowe
TIP
2002
133views more  TIP 2002»
13 years 7 months ago
Wavelet-based rotational invariant roughness features for texture classification and segmentation
In this paper, we introduce a rotational invariant feature set for texture segmentation and classification, based on an extension of fractal dimension (FD) features. The FD extract...
Dimitrios Charalampidis, Takis Kasparis
PAMI
2012
11 years 10 months ago
Accurate Eye Center Location through Invariant Isocentric Patterns
—Locating the center of the eyes allows for valuable information to be captured and used in a wide range of applications. Accurate eye center location can be determined using com...
Roberto Valenti, Theo Gevers