Results 11 to 20 of about 174,598 (266)

An End-to-End Deep Learning Image Compression Framework Based on Semantic Analysis

open access: yesApplied Sciences, 2019
Lossy image compression can reduce the bandwidth required for image transmission in a network and the storage space of a device, which is of great value in improving network efficiency.
Cheng Wang, Yifei Han, Weidong Wang
doaj   +1 more source

Digital Image Compression using Karhunen-Loève Transform [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2013
In this research present the digital image compression using by  Karhunen-Loève Transform (KLT), by convert a color digital  image to a gray square digital image, then select the no. of eigen values and eigen vectors that can reconstruct the image,  that
Ghada Younes
doaj   +1 more source

Research on fractal image compression hybrid algorithm based on convolutional neural network and gene expression programming

open access: yesJournal of Algorithms & Computational Technology, 2019
Regarding the problems of insufficient image segmentation intelligence, low compression rate, slow speed for global searching to find the optimal fractal image compression encoding, and bad decoding effect, this article proposes the fractal image ...
Wenjing Li   +3 more
doaj   +1 more source

SWF Image Compression by Evaluating objects compression ratio

open access: yesJournal of Kufa for Mathematics and Computer, 2010
This work discusses the compression objects ratio for Macromedia Flash File (SWF) Image by Wavelet functions for compression and there effect for Macromedia Flash File (SWF) Images compression .
Hind Rostom Mohammed, Ameer Abd Al-Razaq
doaj   +1 more source

Three-Dimensional Adaptive Image Compression Concept for Medical Imaging: Application to Computed Tomography Angiography for Peripheral Arteries

open access: yesJournal of Cardiovascular Development and Disease, 2022
Advances in computed tomography (CT) have resulted in a substantial increase in the size of datasets. We built a new concept of medical image compression that provides the best compromise between compression rate and image quality. The method is based on
Guillaume Fahrni   +4 more
doaj   +1 more source

Energy efficient image coding techniques for low power sensor nodes: A review

open access: yesAin Shams Engineering Journal, 2018
Visual Sensors Networks (VSN) are spatially dispersed distributed networks, consisting of small sensing units and image sensors. They are scattered over a region to sense, collect and transfer data and are involved in domains such as environmental ...
G. Suseela, Y. Asnath Victy Phamila
doaj   +1 more source

Analysis of the compression ratio and quality in aerial images

open access: yesAviation, 2007
In modern photomap systems, images are stored in centralized storage. Choosing a proper compression format for the storage of an aerial image is an important problem. This paper analyses aerial image compression in popular compression formats.
Darius Mateika, Romanas Martavicius
doaj   +1 more source

A Multilayer Improved RBM Network Based Image Compression Method in Wireless Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2016
The processing capacity and power of nodes in a Wireless Sensor Network (WSN) are limited. And most image compression algorithms in WSN are subject to random image content changes or have low image qualities after the images are decoded.
Chunling Cheng   +3 more
doaj   +1 more source

An efficient JPEG image compression based on Haar wavelet transform, discrete cosine transform, and run length encoding techniques for advanced manufacturing processes

open access: yesMeasurement + Control, 2019
Image compression plays a key role in the transmission of an image and storage capacity. Image compression aims to reduce the size of the image with no loss of significant information and no loss of quality in the image. To reduce the storage capacity of
Sulaiman Khan   +4 more
doaj   +1 more source

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou   +10 more
wiley   +1 more source

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