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ICDAR
2009
IEEE
14 years 7 months ago
Restoration and Segmentation of Highly Degraded Characters Using a Shape-Independent Level Set Approach and Multi-level Classifi
Segmentation of ancient documents is challenging. In the worst cases, text characters become fragmented as the results of strong degradation processes. New active contour methods ...
Reza Farrahi Moghaddam, David Rivest-Hénaul...
PKC
1999
Springer
115views Cryptology» more  PKC 1999»
15 years 2 months ago
Decision Oracles are Equivalent to Matching Oracles
One of the key directions in complexity theory which has also filtered through to cryptographic research, is the effort to classify related but seemingly distinct notions. Separa...
Helena Handschuh, Yiannis Tsiounis, Moti Yung
ICIP
1999
IEEE
15 years 11 months ago
A Fast Image Registration Technique for Motion Artifact Reduction in DSA
In digital subtraction angiography (DSA), patient motion is the primary cause of image quality degradation. The motion correction algorithms developed so far were not sufficiently...
Erik H. W. Meijering, Karel J. Zuiderveld, Wiro J....
ICIP
2009
IEEE
15 years 11 months ago
Fast Pseudo-enhancement Correction In Ct Colonography Using Linear Shift-invariant Filters
This paper presents a novel method to approximate shiftvariant Gaussian filtering of an image using a set of shiftinvariant Gaussian filters. This approximation affords filtering ...
SI3D
2006
ACM
15 years 3 months ago
Jump flooding in GPU with applications to Voronoi diagram and distance transform
This paper studies jump flooding as an algorithmic paradigm in the general purpose computation with GPU. As an example application of jump flooding, the paper discusses a constant...
Guodong Rong, Tiow Seng Tan