Results 1 to 10 of about 244 (177)

RL-SPIHT: Reinforcement Learning-Based Adaptive Selection of Compression Ratios for 1-D SPIHT Algorithm [PDF]

open access: yesIEEE Access, 2021
In recent years, deep learning technologies have been actively used in various applications. In particular, networks trained using reinforcement learning (RL) are widely exploited for auxiliary tasks in various multimedia frameworks, including image ...
Jin Shin, Hyun Kim
doaj   +2 more sources

Optimal Relay Selection using jellyfish Optimization Algorithm for Image Transmission over Multiuser Cooperative Communication Networks [PDF]

open access: yesJES: Journal of Engineering Sciences, 2023
A recent study and research have shown that the relay selection schemes for cooperative communication can achieve full cooperative diversity gains and still maintains energy efficiency.
fatma mohamed   +2 more
doaj   +1 more source

A Multiresolutionnal Coding Method Based on SPIHT [PDF]

open access: yesSignal Processing: Image Communication, 2001
In this work, we incorporate a multiresolutional coding functionality into the SPIHT algorithm [1]. The multiresolutional coding can be considered as a kind of the region of interest (ROI) coding with multiple regions of interest. Therefore, the ROI coding proposed by authors can be extended for the multiresolutional functionality without any cost in ...
Park, Keun-hyeong   +2 more
openaire   +3 more sources

PERFORMANCE ANALYSIS OF IMAGE COMPRESSION BASED ON FAST FRACTIONAL WAVELET TRANSFORM COMBINED WITH SPIHT FOR MEDICAL IMAGES [PDF]

open access: yesICTACT Journal on Image and Video Processing, 2018
Fast Fractional Wavelet Transform (FFWT) is an orthogonal linear transform called as decomposed signals in terms of chirps transform. This transform is used for signal and image compression and is based on Eigen value decomposition.
K Ezhilarasan   +2 more
doaj   +1 more source

Robust image transmission performed by SPIHT and turbo-codes [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2008
This work describes the method for providing robustness to errors from a binary symmetric channel for the SPIHT image compression. The source rate and channel rate are jointly optimized by a stream of fixed-size channel packets. Punctured turbo codes are
Lakhdar Moulay Abdelmounaim   +2 more
doaj   +1 more source

TWO-STEP PROVIDING OF DESIRED QUALITY IN LOSSY IMAGE COMPRESSION BY SPIHT

open access: yesРадіоелектронні і комп'ютерні системи, 2020
Image information technology has become an important perception technology considering the task of providing lossy image compression with the desired quality using certain encoders Recent researches have shown that the use of a two-step method can ...
Fangfang Li   +2 more
doaj   +1 more source

Fully spatial and SNR scalable, SPIHT-based image coding for transmission over heterogenous networks

open access: yesJournal of Telecommunications and Information Technology, 2003
This paper presents a fully scalable image coding scheme based on the set partitioning in hierarchical trees (SPIHT) algorithm. The proposed algorithm, called fully scalable SPIHT (FS-SPIHT), adds the spatial scalability feature to the SPIHT algorithm ...
Habibollah Danyali
doaj   +1 more source

Comparison of Effects of Entropy Coding Schemes Cascaded with Set Partitioning in Hierarchical Trees

open access: yesMehran University Research Journal of Engineering and Technology, 2018
WT (Wavelet Transform) is considered as landmark for image compression because it represents a signal in terms of functions which are localized both in frequency and time domain.
Ali Iqbal   +4 more
doaj   +1 more source

Enhanced SPIHT Algorithm with Pipelined Datapath Architecture Design

open access: yesElectrica, 2019
Set partitioning in hierarchical trees(SPIHT) is an efficient algorithm which is used for the image compressionwidely. SPIHT operates sequentially so, its parallel implementation isdifficult.
Serap Cekli, Ali Akman
doaj   +1 more source

Algorithmic modifications to SPIHT

open access: yesProceedings 2001 International Conference on Image Processing (Cat. No.01CH37205), 2002
This paper proposes several low complexity algorithmic modifications to the SPIHT (set partitioning in hierarchical trees) image coding method of Said and Pearlman (1996). The modifications exploit universal traits common to the real world images. Approximately 1-2% compression gain (bit rate reduction for a given mean squared error) has been obtained ...
Ulug Bayazit, William A. Pearlman
openaire   +1 more source

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