Results 11 to 20 of about 613,947 (142)

Digital compression and coding of continuous-tone still images [PDF]

open access: yes, 2008
This CCITT Recommendation | ISO/IEC International Standard was prepared by CCITT Study Group VIII and the Joint Photographic Experts Group (JPEG) of ISO/IEC JTC 1/SC 29/WG 10.

core   +9 more sources

Implementation of Clock Gating for Power Optimizing in Synchronous Design

open access: yesTikrit Journal of Engineering Sciences, 2018
Huffman coding is very important technique in information theory. Compression technique is the technology for reducing the amount of data used to denote any content without decreasing the quality.
Hussein Shakor Mogheer   +1 more
doaj   +3 more sources

Lossless Text Image Compression using Two Dimensional Run Length Encoding

open access: yesJOIN: Jurnal Online Informatika, 2020
Text images are used in many types of conventional data communication where texts are not directly represented by digital character such as ASCII but represented by an image, for instance facsimile file or scanned documents.
Hilal H Nuha
doaj   +1 more source

Arithmetic coding revisited [PDF]

open access: yes, 1998
Over the last decade, arithmetic coding has emerged as an important compression tool. It is now the method of choice for adaptive coding on multisymbol alphabets because of its speed, low storage requirements, and effectiveness of compression.
Neal, Radford M.   +5 more
core   +1 more source

Lossless Compression Algorithm Based on Hybrid Coding of Adaptive Huffman and Golomb-Rice for WSN [PDF]

open access: yesJisuanji gongcheng, 2016
Aiming at the problem that traditional Wireless Sensor Network(WSN) data compression algorithms cannot take both compression efficiency and data loss into account,a fast and efficient Lossless Adaptive Compression(LAC) algorithm based on adaptive Huffman
XIE Ruiyun,HAI Benzhai
doaj   +1 more source

Robust image and video coding with pyramid vector quantisation [PDF]

open access: yes, 1999
Most current image and video coding standards use variable length codes to achieve compression, which renders the compressed bitstream very sensitive to channel errors.
Bull, D R, Chung How, JTH, Bull, DR
core   +1 more source

Block huffman coding [PDF]

open access: yes, 2003
Dynamic or adaptive Huffman coding, proposed by Gallager [1] and extended by Knuth [21, can be used for compressing a continuous stream. Our proposal for accomplishing the same task is termed here as block Huffman coding.
Kaykobad, M., Abdul Mannan, M.
core   +1 more source

Asymmetrical Two-Level Scalar Quantizer with Extended Huffman Coding for Compression of Laplacian Source

open access: yesAdvances in Electrical and Computer Engineering, 2013
This paper proposes a novel model of the two-level scalar quantizer with extended Huffman coding. It is designed for the average bit rate to approach the source entropy as close as possible provided that the signal to quantization noise ratio (SQNR ...
PERIC, Z.   +4 more
doaj   +1 more source

A Lossless Compression Method for Chat Messages Based on Huffman Coding and Dynamic Programming

open access: yesComputers, 2021
There is always an increasing demand for data storage and transfer; therefore, data compression will always be a fundamental need. In this article, we propose a lossless data compression method focused on a particular kind of data, namely, chat messages,
Julián Moreno Cadavid   +1 more
doaj   +1 more source

An Efficient Encoding Algorithm Using Local Path on Huffman Encoding Algorithm for Compression

open access: yesApplied Sciences, 2019
Huffman encoding and arithmetic coding algorithms have shown great potential in the field of image compression. These algorithms are the origin of current image compression techniques. Nevertheless, there are some deficiencies in both algorithms that use
Erdal Erdal, Atilla Ergüzen
doaj   +1 more source

Home - About - Disclaimer - Privacy