JPEG 2000, a new international standard for still image compression, is discussed at length. A high-level introduction to the JPEG-2000 standard is given, followed by a detailed technical description of the JPEG2000 Part-1 codec. Keywords—JPEG 2000, still image compression/coding, standards.

A new error-resilient JPEG2000 wireless transmission scheme is proposed. The proposed scheme exploits the ‘progressive by quality’ structure of the JPEG2000 code-stream and takes into account the effect of channel errors at different quality layers in order to protect the coded bit-stream according to channel conditions using multi-rate low-density parity-check (LDPC) codes, leading to a flexib...

Given the substantial variation in global wheat yield, insufficient research cultivar selection for climate change, and lack of suitable germplasm sustainable agroecosystems, there is a requisite soft genotypes, with stable grain yield as well quality parameters. The present study was aimed at genotype evaluation (GGE biplot “mean performance versus stability”) not only but also technological, ...

In this paper we describe the development of model checking from BDD-based verification, through SAT-based bug finding, to Interpolation-based verification. Model checking is an automatic approach to formally verifying that a given system satisfies a given specification. BDD-based Symbolic Model Checking (SMC) was the first to enable model checking of real-life designs with a few hundreds of st...

We present the design and rationale of a practical system for passing confidential messages. The mechanism is an adaptation of Rivest’s “chaffing and winnowing”, which has the legal advantage of using authentication keys to provide privacy. We identify a weakness in Rivest’s particular choice of his “package transform” as an “all-or-nothing” element within his scheme. We extend the basic system...

A novel embedded wavelet coding scheme is proposed for the transmission of images over unreliable channels. The proposed scheme is based on the partitioning of information into a number of layers which can be decoded independently provided that some important and highly protected information is initially errorlessly transmitted to the decoder. Forward error correction is used in conjunction wit...

In this article, we propose a novel integrated approach to quantitative semi-fragile authentication of JPEG2000 images under a generic framework which combines ECC and PKI infrastructures. Firstly acceptable manipulations (e.g., re-encoding) which should pass authentication are defined based on considerations of some target applications. We propose a unique concept of lowest authenticable bit r...

THE EUROPEAN JOURNAL OF RESPIRATORY MEDICINE VOL I ISSUE I Several clinical prediction have been developed to categorised such patients as Geneva or Well’s scores; however the ability to accurately determine the pretest probability of PE appears to increase with clinical experience. [4] Accurate diagnosis of acute PE may be difficult on these bases, because of non-specificity of not only the cl...

In 1999, when most of the computer industry’s cautionary buzz centered on finding and fixing Y2K flaws, a small group of MITRE engineers began work on the Common Vulnerabilities and Exposures dictionary. Prior to CVE, no standard nomenclature existed for network security holes. In fact, the security landscape was rife with different names for the same vulnerability, as vendors strove to differe...

JPEG 2000, a new international standard for still image compression, is discussed at length. A high-level introduction to the JPEG-2000 standard is given, followed by a detailed technical description of the JPEG2000 Part-1 codec. Keywords—JPEG 2000, still image compression/coding, standards.