Sciweavers

DCC
2004
IEEE
14 years 4 months ago
Multi-resolution Source Coding Using Entropy Constrained Dithered Scalar Quantization
In this paper, we build multi-resolution source codes using entropy constrained dithered scalar quantizers. We demonstrate that for n-dimensional random vectors, dithering followe...
Qian Zhao, Hanying Feng, Michelle Effros
DCC
2004
IEEE
14 years 4 months ago
On Optimal Multiresolution Source-Channel Coding across Degraded Broadcast Channels
Inspired by a converse result, the concept of "probabilistically matched" sources and channels is extended to sources subject to multiresolution coding and degraded broa...
Ertem Tuncel
DCC
2004
IEEE
14 years 4 months ago
Variable-length contexts for PPM
Przemyslaw Skibinski, Szymon Grabowski
DCC
2004
IEEE
14 years 4 months ago
A Foreground/Background Separation Algorithm for Image Compression
Patrice Y. Simard, Henrique S. Malvar, James Rinke...
DCC
2004
IEEE
14 years 4 months ago
Group Testing for Video Compression
Hong and Ladner [6] used context-based group testing to implement bitplane coding for image compression. We extend this technique to video coding, by replacing the quantization an...
Gidon Shavit, Michael F. Ringenburg, Jeff West, Ri...
DCC
2004
IEEE
14 years 4 months ago
Efficient Bit Allocation for Dependent Video Coding
A steepest descent based bit allocation method with polynomial iteration complexity for minimizing the sum of frame distortions under a total bit rate constraint is presented for ...
Yegnaswamy Sermadevi, Sheila S. Hemami
DCC
2004
IEEE
14 years 4 months ago
Length-Limited Variable-to-Variable Length Codes For High-Performance Entropy Coding
Arithmetic coding achieves a superior coding rate when encoding a binary source, but its lack of speed makes it an inferior choice when true high? performance encoding is needed. ...
Joshua G. Senecal, Mark A. Duchaineau, Kenneth I. ...
DCC
2004
IEEE
14 years 4 months ago
Coding for Fast Access to Image Regions Defined by Pixel Range
Many technical imaging applications, like coding "images" of digital elevation maps, require extracting regions of compressed images in which the pixel values are within...
Amir Said, Sehoon Yea, William A. Pearlman