Sciweavers

DCC
2005
IEEE
14 years 4 months ago
A Block-Based Inter-Band Lossless Hyperspectral Image Compressor
Abstract: We propose a hyperspectral image compressor called BH which considers its input image as being partitioned into square blocks, each lying entirely within a particular ban...
Marko J. Slyz, Lei Zhang
DCC
2005
IEEE
14 years 4 months ago
Two-Level Directory based Compression
In this paper we present a new dictionary-based preprocessing technique and its implementation called TWRT (Two-level Word Replacing Transformation). Our preprocessor uses several...
Przemyslaw Skibinski
DCC
2005
IEEE
14 years 4 months ago
When is Bit Allocation for Predictive Video Coding Easy?
This paper addresses the problem of bit allocation among frames in a predictively encoded video sequence. Finding optimal solutions to this problem potentially requires making an ...
Yegnaswamy Sermadevi, Jun Chen, Sheila S. Hemami, ...
DCC
2005
IEEE
14 years 4 months ago
Efficient Alphabet Partitioning Algorithms for Low-Complexity Entropy Coding
We analyze the technique for reducing the complexity of entropy coding consisting in the a priori grouping of the source alphabet symbols, and in dividing the coding process in tw...
Amir Said
DCC
2005
IEEE
14 years 4 months ago
Real, Tight Frames with Maximal Robustness to Erasures
Motivated by the use of frames for robust transmission over the Internet, we present a first systematic construction of real tight frames with maximum robustness to erasures. We a...
Jelena Kovacevic, Markus Püschel
DCC
2005
IEEE
14 years 4 months ago
Binary Codes for Non-Uniform Sources
Alistair Moffat, Vo Ngoc Anh
DCC
2005
IEEE
14 years 4 months ago
Lossless Data Compression Using Optimal Tree Machines
We discuss a lossless data compression system that uses fixed Tree Machines to encode data. The idea is to create a sequence of Tree Machines and a robust escape method aimed at p...
Gergely Korodi, Jorma Rissanen, Ioan Tabus
DCC
2005
IEEE
14 years 4 months ago
A Point-Set Compression Heuristic for Fiber-Based Certificates of Authenticity
A certificate of authenticity (COA) is an inexpensive physical object that has a random unique structure with high cost of near-exact reproduction. An additional requirement is th...
Darko Kirovski
DCC
2005
IEEE
14 years 4 months ago
Distributed Source Coding in Dense Sensor Networks
We study the problem of the reconstruction of a Gaussian field defined in [0, 1] using N sensors deployed at regular intervals. The goal is to quantify the total data rate require...
Akshay Kashyap, Cathy H. Xia, Luis Alfonso Lastras...
DCC
2005
IEEE
14 years 4 months ago
Using 2: 1 Shannon Mapping for Joint Source-Channel Coding
Fredrik Hekland, Geir E. Øien, Tor A. Ramst...