Results 61 to 70 of about 1,285 (216)
Adaptive two-step method for providing the desired visual quality for SPIHT
Радіоелектронні і комп'ютерні системи, 2022 Lossy compression has been widely used in various applications due to its variable compression ratio. However, distortions are introduced unavoidably, and this decreases the image quality.
Fangfang Li
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Design of Biorthogonal Wavelets based on Spline and Spline-like Functions for Image Compression
International Journal of Emerging Research in Engineering, Science, and Management, 2022 Wavelet theory inspired from Fourier analysis is based on the basis function and its properties. Different wavelets use different basis functions which may better suit to some applications.
K Subramanyam, T Ramasri
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BINARY-UNCODED IMAGE AND VIDEO COMPRESSION USING SPIHT-ZTR CODING
, 2011 When the embedded zerotree wavelet (EZW) algorithm was first introduced by Shapiro, four types of symbols (zerotree (ZTR), isolated zero (IZ), positive (POS), and negative (NEG)) were used to represent the tree structure. An improved version of EZW, the
LI-MINN ANG +3 more
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ROBUST IMAGE TRANSMISSION USING SPIHT AND TURBO- CODES
Electrica, 2008 This work describes a 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.
Abdelmounaim MOULAY LAKHDAR +2 more
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Three-Dimensional SPIHT Coding of Volume Images with Random Access and Resolution Scalability
EURASIP Journal on Image and Video Processing, 2008 End users of large volume image datasets are often interested only in certain features that can be identified as quickly as possible. For hyperspectral data, these features could reside only in certain ranges of spectral bands and certain spatial areas ...
William A. Pearlman, Emmanuel Christophe
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Principle of compression images based on discrete wavelet transform
Наука. Инновации. Технологии, 2022 In the article the basic principles of image compression using discrete wavelet transform is presented. Promising imaging techniques EZW and SPIHT, based on zero-tree algorithm are shown.
Nikolai Ivanovich Chervyakov +3 more
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SPIHT-based Image Archiving Under Bit Budget Constraints
, 2013 Image archiving is important in various applications. In this work, we formulate the problem of compressing image archives as an optimization problem and present an efficient method for solving this problem. Our method is based on adapting SPIHT to image
He, Yifeng
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Using Modified Set Partitioning In Hierarchical Tree Algorithm with Discreet Cosine Transform to Compress Color Images [PDF]
Engineering and Technology Journal, 2010 The aim of this research is to investigate the performance of a suggestedimage compression system. The scheme of the proposed system utilizes Tap 9/7wavelet transforms to decompose the image signal, and then uses Discrete CosineTransform (DCT), and ...
Ban Nadeem Dhannoon +1 more
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Video Coding Using 3D Dual-Tree Wavelet Transform
EURASIP Journal on Image and Video Processing, 2007 This work investigates the use of the 3D dual-tree discrete wavelet transform (DDWT) for video coding. The 3D DDWT is an attractive video representation because it isolates image patterns with different spatial orientations and motion directions and ...
Beibei Wang +3 more
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STUDY OF IMAGE COMPRESSION TECHNIQUE BASED ON THE SPIHT ALGORITHEM [PDF]
, 2016 In this paper, we study the compression technique. That is, Set Partitioning in Hierarchical Trees (SPIHT). This compression technique is based on the wavelet transform .A wavelet is a small wave which has its energy concentrated in time. It gives a tool
Tanuja Dave*, Pooja Jain
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