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» Code Optimization for Code Compression
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STOC
2009
ACM
159views Algorithms» more  STOC 2009»
16 years 5 months ago
Message passing algorithms and improved LP decoding
Linear programming decoding for low-density parity check codes (and related domains such as compressed sensing) has received increased attention over recent years because of its p...
Sanjeev Arora, Constantinos Daskalakis, David Steu...
RSP
2000
IEEE
156views Control Systems» more  RSP 2000»
15 years 9 months ago
Quasi-Static Scheduling of Reconfigurable Dataflow Graphs for DSP Systems
Dataflow programming has proven to be popular for representing applications in rapid prototyping tools for digital signal processing (DSP); however, existing dataflow design tools...
Bishnupriya Bhattacharya, Shuvra S. Bhattacharyya
WCE
2007
15 years 6 months ago
VHDL Implementation of Multiplierless, High Performance DWT Filter Bank
—The JPEG 2000 image coding standard employs the biorthogonal 9/7 wavelet for lossy compression. The performance of hardware implementation of 9/7-filter bank depends on accuracy...
M. M. Aswale, R. B. Patil
JIPS
2010
273views more  JIPS 2010»
14 years 11 months ago
Hiding Secret Data in an Image Using Codeword Imitation
This paper proposes a novel reversible data hiding scheme based on a Vector Quantization (VQ) codebook. The proposed scheme uses the principle component analysis (PCA) algorithm to...
Zhi-Hui Wang, Chin-Chen Chang, Pei-Yu Tsai
DCC
2010
IEEE
15 years 11 months ago
Lossless Data Compression via Substring Enumeration
We present a technique that compresses a string w by enumerating all the substrings of w. The substrings are enumerated from the shortest to the longest and in lexicographic order...
Danny Dubé, Vincent Beaudoin