Choosing the optimal compression algorithms for high definition and super high definition video signals including 2K and 4K resolutions and 3D stereoscopic is a complex task because of the technological needs and capabilities of different parts of the production, transmission and archiving chains. Specifics of recording, postproduction, contribution, distribution, transmission, archive and pict...

The combination of a source coder and a digital modu-lator is in this article viewed as an analog-to-analog converter with signal compression ability. A reference channel with deened available bandwidth, total received power, and noise statistics, can transmit one analog source signal. Compression is here deened as the number of such source signals that the digital system can transmit over the ...

It is routine for audiologists to fit nonlinear hearing aids by using one of several current prescriptive formulae. While such an approach might result in acceptable fittings for single-channel analog compression hearing aids, its direct application to fitting current multichannel compression hearing aids may result in less than an optimal fit. In this paper, the effects of filter bandwidth, nu...

Image compression and image encryption are pivotal to proper storage and transmission of images over MANET. Simultaneous image compression and encryption aims at achieving enhanced bandwidth utilization and security at the same time. The Number Theory based Image Compression and Quasigroup Encryption (NTICQE) algorithm employs number theoretic paradigm Chinese Remainder Theorem and Quasigroup E...

MPEG-4 is designed for multimedia and web compression, using object-based compression. Abstract This paper contains an analysis of the four most common video compression algorithms and their errorresilience capabilities when applied to wireless video compression. The algorithms examined are: MPEG-2, H.263, MJPEG-2000, and MPEG-4. Each of these compression methods has specific strengths and capa...

The video compression became one of the mandatory elements in the modern digital technology so that the largescale video should be compressed in order to serve high density digital videos that are transmitted over even on low bandwidth network carriers. The existing video compression techniques are not adequate in order to support high speed transmission needs of video transfer, particularly in...

The storage and bandwidth requirements of digital video and audio exceed those that can be supported by conventional file servers. Despite the emergence of new compression algorithms capable of providing extremely high compression ratios, there is still a challenge to provide optimised storage services capable of storing 1000s of hours of multimedia data and providing simultaneous access to hun...