Results 91 to 100 of about 7,252 (285)

MEDICAL IMAGE COMPRESSION USING HYBRID CODER WITH FUZZY EDGE DETECTION [PDF]

open access: yesICTACT Journal on Image and Video Processing, 2011
Medical imaging techniques produce prohibitive amounts of digitized clinical data. Compression of medical images is a must due to large memory space required for transmission and storage.
K. Vidhya, S. Shenbagadevi
doaj  

Compressive Data Hiding: An Unconventional Approach for Improved Color Image Coding

open access: yesEURASIP Journal on Advances in Signal Processing, 2002
Traditionally, data hiding and compression have had contradictory goals. The former problem adds perceptually irrelevant information in order to embed data, while the latter removes this irrelevancy and redundancy to reduce storage requirements. In this
Kundur Deepa   +3 more
doaj   +1 more source

Improving SPIHT-based Compression of Volumetric Medical Data [PDF]

open access: yes, 2001
Volumetric medical data (CT,MR) are useful tools for diagnostic investigation however their usage may be made diffcult because of the amount of data to store or because of the duration of communication over a limited capacity channel.
A. SIGNORONI   +3 more
core  

The Research on Fault Identification of Spatiotemporal Location With Compressed Grid Data Using the Stochastic Sliding Blocks

open access: yesIEEE Access
To identify the compressed power grid fault data quickly and effectively, this paper presents a spatiotemporal location fault diagnosis method for the data compressed with set partitioning in hierarchical trees (SPIHT) algorithm.
Tao Liu   +6 more
doaj   +1 more source

Classified Vector Spiht Forwavelet Image Coding

open access: yes2006 International Conference on Image Processing, 2006
Wavelet based image coding has been shown to be an effective method, especially at low bit rate. Two successful approaches, space-frequency quantization (SFQ) and set partitioning in hierarchical trees (SPIHT) were proposed to predict insignificant wavelet coefficients.
YongQing Liang 0003, Scott E. Budge
openaire   +2 more sources

MEDICAL IMAGES COMPRESSION BASED ON SPIHT AND BAT INSPIRED ALGORITHMS

open access: yesIraqi Journal for Computers and Informatics, 2019
There is a significant necessity to compress the medical images for the purposes of communication and storage. Most currently available compression techniques produce an extremely high compression ratio with a high-quality loss.
Sarah Jasim
doaj   +1 more source

PARAMETRIC EVALUATION ON THE PERFORMANCE OF VARIOUS IMAGE COMPRESSION ALGORITHMS [PDF]

open access: yesICTACT Journal on Image and Video Processing, 2011
Wavelet analysis plays a vital role in the signal processing especially in image compression. In this paper, various compression algorithms like block truncation coding, EZW and SPIHT are studied and ana- lyzed; its algorithm idea and steps are given ...
V. Sutha Jebakumari   +1 more
doaj  

Optimized Progressive Coding of Stereo Images Using Discrete Wavelet Transform [PDF]

open access: yesJournal of Systemics, Cybernetics and Informatics, 2003
In this paper, a compression algorithm is introduced which allows the efficient storage and transmission of stereo images. The coder uses a block-based disparity estimation/ compensation technique to decorrelate the image pair.
Torsten Palfner   +2 more
doaj  

JAVA-based effective implementation of an image compression tool [PDF]

open access: yes, 2008
Tato diplomová práce se zabývá problematikou ztrátové komprese digitálních obrazových dat. Ztrátová komprese obecně zavádí určité zkreslení do výsledné reprezentace obrazu. Toto zkreslení by mělo být nerušivé nebo v lepším případě nepozorovatelné.
Průša, Zdeněk
core  

Development of Wavelet Based Image Compression Approach Using Modified SPIHT Algorithm [PDF]

open access: green, 2022
Sandeep K. Shelke   +2 more
openalex   +1 more source

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