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WSCG
2001
92views more  WSCG 2001»
15 years 7 months ago
Enhancements to Directional Coherence Maps
Directional Coherence Maps as proposed by Guo in '98 are a very efficient acceleration technique for ray tracing based global illumination renderers. It vastly reduces the nu...
Annette Scheel, Marc Stamminger, Jörg Pü...
TIP
1998
102views more  TIP 1998»
15 years 6 months ago
Directional filtering in edge detection
— Two-dimensional (2-D) edge detection can be performed by applying a suitably selected optimal edge half-filter in n directions. Computationally, such a two-dimensional n-direc...
Andrew P. Paplinski
CANS
2007
Springer
150views Cryptology» more  CANS 2007»
16 years 20 days ago
Perfectly Secure Message Transmission in Directed Networks Tolerating Threshold and Non Threshold Adversary
Abstract. In this paper we study Perfectly Secure Message Transmission (PSMT) between a sender S and a receiver R, connected in a directed synchronous network through multiple para...
Arpita Patra, Bhavani Shankar, Ashish Choudhary, K...
ICIP
2002
IEEE
16 years 8 months ago
Directional wavelet transforms and frames
The application of the wavelet transform in image processing is most frequently based on a separable transform. Lines and columns in an image are treated independently and the bas...
Pier Luigi Dragotti, Vladan Velisavljevic, Martin ...
DAC
2002
ACM
16 years 7 months ago
A comparison of three verification techniques: directed testing, pseudo-random testing and property checking
This paper describes the verification of two versions of a bridge between two on-chip buses. The verification was performed just as the Infineon Technologies Design Centre in Bris...
Mike Bartley, Darren Galpin, Tim Blackmore