Results 161 to 170 of about 1,285 (216)

Lossless Image Compression Using Context-Dependent Linear Prediction Based on Mean Absolute Error Minimization. [PDF]

Entropy (Basel)
Ulacha G, Łazoryszczak M.
europepmc   +1 more source

Three-Dimensional Point Cloud Applications, Datasets, and Compression Methodologies for Remote Sensing: A Meta-Survey. [PDF]

Sensors (Basel)
Dumic E, da Silva Cruz LA.
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SPIHT image compression on FPGAs

IEEE Transactions on Circuits and Systems for Video Technology, 2005
In this paper, we present an implementation of the image compression routine set partitioning in hierarchical trees (SPIHT) in reconfigurable logic. A discussion on why adaptive logic is required, as opposed to an application specific integrated circuit (ASIC), is provided along with background material on the image compression algorithm.
Thomas W. Fry, Scott Hauck
exaly   +2 more sources

A simplified SPIHT algorithm

Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an, 2008
Based on the SPIHT algorithms, we define two modifications to develop a simpler image coding method. The first concept is obtained from the relationship between the bit-planes and the target bit-rate. The second concept is obtained from the relationship between the initial threshold and the target bit-rate.
Jar-Ferr Yang
exaly   +2 more sources

Performance improvement of the SPIHT coder

Signal Processing: Image Communication, 2004
Abstract The set partitioning in hierarchical trees (SPIHT) coder is one of the state-of-the-art coders among the wavelet-based image compression coders. For improving the performance of the SPIHT coder, in this paper, we propose a pre-processing method that applies the discrete sine transform or the discrete cosine transform to the wavelet ...
Ki-Lyug Kim, Sung-Woong Ra
exaly   +2 more sources

SPIHT video coder

Proceedings of IEEE TENCON '98. IEEE Region 10 International Conference on Global Connectivity in Energy, Computer, Communication and Control (Cat. No.98CH36229), 2002
We propose a new video coding scheme based on discrete wavelet transform (DWT), as it provides a better way to address scalability functionalities, than MPEG-2. To code wavelet coefficients efficiently, we use set partitioning in hierarchical trees (SPIHT) and adaptive arithmetic coding algorithms.
KARLEKAR, JAYASHREE, DESAI, UB
openaire   +3 more sources

A Block-Based Pass-Parallel SPIHT Algorithm

IEEE Transactions on Circuits and Systems for Video Technology, 2012
Set-partitioning in hierarchical trees (SPIHT) is a widely used compression algorithm for wavelet-transformed images. One of its main drawbacks is a slow processing speed due to its dynamic processing order that depends on the image contents. To overcome this drawback, this paper presents a modified SPIHT algorithm called block-based pass-parallel ...
Yongseok Jin, Hyuk-Jae Lee
exaly   +2 more sources

An improved SPIHT algorithm for lossless image coding

Digital Signal Processing, 2009
In this paper, we propose a new wavelet-based lossless image coder that is based on a state-of-the-art algorithm, namely SPIHT (set partitioning in hierarchical trees). An algorithmic modification is introduced in order to increase its efficiency. This consists of adding a new test on direct descendants in the sets of type A to process the parent ...
Tahar Brahimi, Fouad Khelifi
exaly   +2 more sources

Resolution scalable SPIHT (RS-SPIHT)

SPIE Proceedings, 2006
A new embedded rate scalable and resolution scalable, lossless image compression technique based on Highly Scalable - Set Partitioning in Hierarchical Trees (HS-SPIHT) is developed. The new method, called Resolution Scalable-SPIHT (RS-SPIHT), encodes the regions in the next higher resolution that are most likely to be significant along with the current
Dayanand Choundappan, Paul Salama, Maher Rizkalla, Mohamed El-Sharkawy   +3 more
openaire   +1 more source