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» On Transform Coding with Dithered Quantizers
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ICIP
2005
IEEE
14 years 7 months ago
JPEG 2000 scalar quantization using an optimally frequency localized modulated lapped transform
JPEG 2000 is a lossy integer-to-integer transform-based compression method that first quantizes the separable 2-D wavelet transform coefficients, then entropy codes them. The imag...
Peter C. Tay, Joseph P. Havlicek
ISCAS
1993
IEEE
115views Hardware» more  ISCAS 1993»
13 years 9 months ago
Improved Chen-Smith image coder
An image compression system based on transform coding and zonal sampling is presented. It is based on the wellknown Chen-Smith coder, but with an improved technique for transform ...
Eduardo M. Rubino, Henrique S. Malvar, Ricardo L. ...
TIP
2010
144views more  TIP 2010»
13 years 1 days ago
Direction-Adaptive Partitioned Block Transform for Color Image Coding
- In this report, we investigate the application of Direction Adaptive-Partitioned Block Transform (DA-PBT) to color images and propose a basic framework for DA-PBT Color Image Cod...
Chuo-Ling Chang, Mina Makar, Sam S. Tsai, Bernd Gi...
ICIP
2000
IEEE
14 years 7 months ago
Subspaces of Quantization Artifacts for Image Transform Compression
This paper presents a new algorithm for reducing quantization artifacts in transform coded images. For transform coded signals, we analytically show that one can determine linear ...
Onur G. Guleryuz
DCC
2008
IEEE
14 years 4 months ago
Noise-Shaped Predictive Coding for Multiple Descriptions of a Colored Gaussian Source
It was recently shown that the symmetric multiple-description (MD) quadratic rate-distortion function for memoryless Gaussian sources and two descriptions can be achieved by dithe...
Jan Østergaard, Ram Zamir, Yuval Kochman