Results 71 to 80 of about 1,285 (216)

Error Concealment using Data Hiding in Wireless Image Transmission

open access: yesTelfor Journal, 2016
The transmission of image/video over unreliable medium like wireless networks generally results in receiving a damaged image/video. In this paper, a novel image error concealment scheme based on the idea of data hiding and Set Partitioning In ...
A. Akbari   +3 more
doaj   +1 more source

An Improved Image Compression Technique Using EZW and SPHIT Algorithms

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2019
 Uncompressed form of the digital images are needed a very large storage capacity amount, as a consequence requires large communication bandwidth for data transmission over the network.
Aqeel K. Kadhim   +2 more
doaj   +1 more source

Improving quality of medical image compression using biorthogonal CDF wavelet based on lifting scheme and SPIHT coding [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2011
As the coming era is that of digitized medical information, an important challenge to deal with is the storage and transmission requirements of enormous data, including medical images.
Beladgham Mohammed   +3 more
doaj   +1 more source

فشرده‌سازی سیگنال‌های الکترومایوگرام مبتنی بر تقریب به کمک تجزیه حالت تجربی و هموارسازی به کمک تبدیل DCT [PDF]

open access: yesپردازش سیگنال پیشرفته, 2019
سیگنال‌های الکترومایوگرام (EMG) ابزار مفیدی در ارزیابی رفتار ماهیچه بوده و کاربردهای کلینیکی بسیاری دارند. امروزه تمایل زیادی به انتقال و ذخیره طولانی‌مدت این سیگنال‌ها وجود دارد. این مطلب اهمیت ذخیره‌سازی مؤثر این سیگنال‌ها را نشان می‌دهد.
مریم مگری, هادی گرایلو
doaj  

Compression of multispectral images using spectral correlation and SPIHT algorithm

open access: yes, 2009
Many methods for lossy and lossless compression of multispectral imaging data has been developed. 3-dimensional compression of multispectral images has been studied by many researchers.
Shi ZL(史泽林)   +3 more
core  

THE PROBLEM OF CONTOURS IN TRANSFORM IMAGE CODING

open access: yes, 2008
Object contours contribute to a large extent to the perceived quality of an image but are typically quite hard to compress. As a matter of facts, many coding algorithms fail to describe efficiently this information.
Parrilli, Sara
core  

Setting priorities: a new SPIHT-compatible algorithm for image compression [PDF]

open access: yes, 2000
We introduce a new algorithm for progressive or multiresolution image compression. The algorithm improves on the Set Partitioning in Hierarchical Trees (SPIHT) algorithm by replacing the SPIHT encoder.
Effros, Michelle, Dugatkin, Diego
core  

Activity selective SPIHT coding

open access: yes, 1999
An embedded image coder that provides very effective progressive image transmission and a high degree of spatial scalability while achieving superior visual performance to SPIHT is presented. A new partitioning structure combined with scale-based wavelet
Sheila S. Hemami, Marcia Ramos
core  

Comparative Performance Evaluation of Three Image Compression Algorithms

open access: yesJournal of Applied Science & Process Engineering, 2017
The advent of computer and internet has brought about massive change to the ways images are being managed. This revolution has resulted in changes in image processing and management as well as the huge space requirement for images’ uploading, downloading,
Jide Julius Popoola   +1 more
doaj   +1 more source

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  

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