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» Directional Discrete Cosine Transforms for Image Coding
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ICIP
2000
IEEE
14 years 9 months ago
Performance Analysis of an H.263 Video Encoder for VIRAM
VIRAM (Vector Intelligent Random Access Memory) is a vector architecture processor with embedded memory, designed for portable multimedia processing devices. Its vector processing...
Thinh P. Q. Nguyen, Avideh Zakhor, Katherine A. Ye...
ICIP
2003
IEEE
14 years 9 months ago
Matching pursuits based multiple description video coding for lossy environments
Multiple description coding (MDC) is an error resilient source coding scheme that creates multiple descriptions of the source with the aim of providing an acceptable reconstructio...
Thinh P. Q. Nguyen, Avideh Zakhor
ICIP
2001
IEEE
14 years 9 months ago
New algorithms for computing directional discrete Fourier transforms
New algorithms for computing the Discrete Fourier Transform (DFT) spectra along different directions are derived and implemented. For computing the DFT spectrum along any given di...
Marios S. Pattichis, Ruhai Zhou, Balaji Raman 0002
TCSV
2002
88views more  TCSV 2002»
13 years 7 months ago
Variable complexity DCT approximations driven by an HVQ-based analyzer
Transform approximations are explored for speeding up the software compression of images and video. Approximations are used to replace the regular discrete cosine transform (DCT) w...
Ricardo L. de Queiroz
MVA
1992
13 years 8 months ago
The Domain of Orthogonal Transforms and the Understanding of Image Features
In this study, we explore the domain of orthogonal transforms, in order to bring an understanding on the characterization of image features, with emphasis placed on the Karhunen-L...
Malek Adjouadi, Habibie Sumargo, Jean Andrian, Fra...