Results 101 to 110 of about 2,483,627 (230)

Repair and Restoration of Corrupted LZSS Files

IEEE Access, 2019
Data compression and decompression have been widely used in modern communication and data transmission. But how to decompress the corrupted lossless compressed files remains a challenge.
Gang Wang, Hua Peng, Yongwang Tang
doaj   +1 more source

Adaptive Neural-Network-Based Lossless Image Coder with Preprocessed Input Data

Applied Sciences
It is shown in this paper that the appropriate preprocessing of input data may result in an important reduction of Artificial Neural Network (ANN) training time and simplification of its structure, while improving its performance. The ANN is working as a
Grzegorz Ulacha, Ryszard Stasinski
doaj   +1 more source

Semantic Lossless Source Coding

Abstract In this chapter, we discuss the semantic lossless source coding. First, we investigate the asymptotic equipartition property (AEP) of semantic coding and introduce the synonymous typical set. Then we prove the semantic source coding theorem and give the optimal length of semantic coding. Finally, we design the semantic Huffman coding
Kai Niu, Ping Zhang
openaire   +1 more source

Subband coding for image data archiving [PDF]

The use of subband coding on image data is discussed. An overview of subband coding is given. Advantages of subbanding for browsing and progressive resolution are presented. Implementations for lossless and lossy coding are discussed.
Glover, Daniel, Kwatra, S. C.
core   +1 more source

Hybrid LZW compression [PDF]

The Science Data Management and Science Payload Operations subpanel reports from the NASA Conference on Scientific Data Compression (Snowbird, Utah in 1988) indicate the need for both lossless and lossy image data compression systems.
Forsyth, William B., Lewis, H. Garton, Jr.   +1 more
core   +1 more source

Adaptive Pipeline Hardware Architecture Design and Implementation for Image Lossless Compression/Decompression Based on JPEG-LS

IEEE Access
Lossless compression of medical images can reduce data size, save storage and transmission costs, and cope with the challenge of increasing resolution demand for medical images.
Fangjia Liu, Xiyao Chen, Zijun Liao, Chong Yang   +3 more
doaj   +1 more source

Improved Low Complexity Predictor for Block-Based Lossless Image Compression

Engineering Proceedings
Lossless image compression has been studied and widely applied, particularly in medicine, space exploration, aerial photography, and satellite communication.
Huang-Chun Hsu, Jian-Jiun Ding, De-Yan Lu   +2 more
doaj   +1 more source

Locally adaptive vector quantization: Data compression with feature preservation [PDF]

A study of a locally adaptive vector quantization (LAVQ) algorithm for data compression is presented. This algorithm provides high-speed one-pass compression and is fully adaptable to any data source and does not require a priori knowledge of the source ...
Cheung, K. M., Sayano, M.
core   +1 more source

A Low-Complexity Lossless Compression Method Based on a Code Table for Infrared Images

Applied Sciences
Traditional JPEG series image compression algorithms have limitations in speed. To improve the storage and transmission of 14-bit/pixel images acquired by infrared line-scan detectors, a novel method is introduced for achieving high-speed and highly ...
Yaohua Zhu, Mingsheng Huang, Yanghang Zhu, Yong Zhang   +3 more
doaj   +1 more source

Research on Universal Combinatorial Coding

The Scientific World Journal, 2014
The conception of universal combinatorial coding is proposed. Relations exist more or less in many coding methods. It means that a kind of universal coding method is objectively existent. It can be a bridge connecting many coding methods.
Jun Lu, Zhuo Zhang, Juan Mo
doaj   +1 more source