DCC
2002
IEEE
14 years 11 months ago
2002
IEEE
- We consider a joint source-channel coding system that protects an embedded wavelet bitstream against noise using a finite family of channel codes with error detection and error c...
DCC
2002
IEEE
14 years 11 months ago
2002
IEEE
Vector wavelet transforms for vector-valued fields can be implemented directly from multiwavelets; however, existing multiwavelets offer surprisingly poor performance for transfor...
DCC
2002
IEEE
14 years 11 months ago
2002
IEEE
In this paper we propose an algorithm for image recovery where completely lost blocks in an image/video-frame are recovered using spatial information surrounding these blocks. Our...
DCC
2002
IEEE
14 years 11 months ago
2002
IEEE
Scalar quantizers with uniform encoders and channel optimized decoders are studied for uniform sources and binary symmetric channels. It is shown that the Natural Binary Code and ...
DCC
2002
IEEE
14 years 11 months ago
2002
IEEE
A novel method for the compression of angiogram video sequences is presented. The approach is based on the idea that not all of an angiogram image will de diagnostically significa...
DCC
2002
IEEE
14 years 11 months ago
2002
IEEE
We consider the properties of optimal xed-rate and entropy-constrained scalar quantizers for nite alphabet sources. In particular, w econsider conditions under which the optimal s...
DCC
2002
IEEE
14 years 11 months ago
2002
IEEE
In this paper, we present a family of new algorithms for rate-fidelity optimal packetization of scalable source bit streams with uneven error protection. In the most general settin...
DCC
2002
IEEE
14 years 11 months ago
2002
IEEE
Many applications in a variety of scientific domains produce datasets that consist of a data field lying on a sampling grid that may not be uniformly spaced. However, progressive ...
DCC
2002
IEEE
14 years 11 months ago
2002
IEEE
We consider source requantization in two forms -- successive degradation (i.e., source fidelity reduction) and bit stealing (i.e., information embedding) -when no forward planning...
DCC
2002
IEEE
14 years 11 months ago
2002
IEEE
With the emergence of software delivery platforms such as Microsoft's .NET, code compression has become one of the core enabling technologies strongly affecting system perfor...