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IPAS
2007
14 years 1 months ago
Multilevel surround inhibition: a biologically inspired contour detector
Canny edge detector is based both on local and global image analysis, present in the gradient computation and connectivity-related hysteresis thresholding, respectively. This cont...
Giuseppe Papari, Patrizio Campisi, Nicolai Petkov
IPAS
2007
14 years 1 months ago
Color filter array interpolation based on spatial adaptivity
Conventional approach in single-chip digital cameras is a use of color lter arrays (CFA) in order to sample di erent spectral components. Demosaicing algorithms interpolate these ...
Dmitriy Paliy, Radu Ciprian Bilcu, Vladimir Katkov...
IPAS
2007
14 years 1 months ago
Prediction of signs of DCT coefficients in block-based lossy image compression
A practical impossibility of prediction of signs of DCT coefficients is generally accepted. Therefore each coded sign of DCT coefficients occupies usually 1 bit of memory in compr...
Nikolay N. Ponomarenko, Andriy V. Bazhyna, Karen O...
IPAS
2007
14 years 1 months ago
Edge and corner preserving smoothing for artistic imaging
What visually distinguishes a painting from a photograph is often the absence of texture and the sharp edges: in many paintings, edges are sharper than in photographic images whil...
Giuseppe Papari, Nicolai Petkov, Patrizio Campisi
IPAS
2007
14 years 1 months ago
Image-based motion stabilization for maritime surveillance
Robust image-based motion stabilization is developed to enable visual surveillance in the maritime domain. The algorithm developed is neither a dense registration method nor a tra...
Daniel D. Morris, Brian R. Colonna, Franklin D. Sn...