Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Abstract This document serves to register...

The Rogers-Ramanujan identities have reached the ripe-old age of one hundred and five and are still the subject of active research. We will discuss their fascinating history, some of the number theory and combinatorics they encapture, and what they have to do with the 1998 Nobel Prize in physics. 1. The Rogers–Ramanujan identities In this lecture you will be introduced to the Rogers–Ramanujan i...

In this paper, we report on the new method of image compression. The method is based on LZ77 dictionary algorithm. We introduce two modifications such as quantization and noise levels. Experimental results presented in this paper prove that the new method of image compression gives promising results as compared with original LZ77 dictionary algorithm and JPEG2000. 2006 Elsevier B.V. All rights ...

The Mixed Raster Content (MRC) ITU document compression standard (T.44) specifies a multilayer decomposition model for compound documents into two contone image layers and a binary mask layer for independent compression. While T.44 does not recommend any procedure for decomposition, it does specify a set of allowable layer codecs to be used after decomposition. While T.44 only allows older stan...

On-line adaptation to nonstationary distributions is essential to good performance in image coding. Fixed-size contexts (with adaptive tables) are also widely used, in conjunction with arithmetic encoders, in state-of-the-art codecs. In contrast, we propose a simple two-dimensional filter that directly outputs the probability distribution function (PDF) estimate necessary to drive an adaptive a...

Der landwirtschaftliche Strukturwandel und nicht zuletzt auch die Ausweitung des Anbaus nachwachsender Rohstoffe für die energetische Nutzung haben in den vergangenen Jahrzehnten zu einer deutlichen Veränderung der Agrarlandschaft beigetragen und diese nachhaltig geprägt. Vor diesem Hintergrund beschäftigt sich die Forschungslinie '3D + t Landmodellierung' am Lehrstuhl für Geoinformatik der TU ...

This paper presents a forward error correction technique that can be applied to protect JPEG2000 streams during their transmission over wireless channels with both sparse and packet error statistics. To this aim, we adopt the tools of the JPEG2000 Wireless (JPWL) standard, by introducing a method for Unequal Error Protection (UEP) and a virtual interleaving technique of the stream. All these te...

The specifications of Motion JPEG 2000 (MJ2) and related documents in the JPEG 2000 family are analyzed, to identify and assess the multiple mechanisms available for storing metadata within a MJ2 file and the types of metadata that can be so accommodated. Adequate mechanisms seem to exist for associating metadata with the production as a whole, individual tracks, and individual frames. In those...