Results 121 to 130 of about 244 (177)

Adaptive Rate-Compatible Non-Binary LDPC Coding Scheme for the B5G Mobile System. [PDF]

Sensors (Basel), 2019
Zhao DF, Tian H, Xue R.
europepmc   +1 more source

ECG data compression using a neural network model based on multi-objective optimization. [PDF]

PLoS One, 2017
Zhang B, Zhao J, Chen X, Wu J.
europepmc   +1 more source

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.
europepmc   +1 more source

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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.
Jun‐Ren Ding, 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

Unsymmetrical SPIHT Codec and 1D SPIHT Codec

2010 International Conference on Electrical and Control Engineering, 2010
Conventional SPIHT compression is for a 2D image or image block with the same maximum feasible decomposition level in two directions, so, only the size of image or image block is symmetrical, that is to say the maximum feasible decomposition level in two directions must be same and the image sizes had better be equal to 2level such as 32, 64, 128 etc ...
Zhang Zhi-Hui
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 ...
Fouad Khelifi
exaly   +2 more sources

Multichannel EEG compression based on ICA and SPIHT

Biomedical Signal Processing and Control, 2015
Abstract In this paper, we propose a novel approach for the compression of multichannel electroencephalograph (EEG) signals. The method assumes that EEG signals are the linear mixture of several independent components (ICs). To retain the ICs, the proposed scheme first applies an independent component analysis (ICA) with a preprocessing step of ...
Lei Lin, Ying Meng, Jiapin Chen, ZhenBo Li   +3 more
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