Lattice vector quantization in image compression and decompressionThe invention proposes a method of determining an index of a code vector (VC) belonging to a predetermined lattice, characterised in that it includes the steps ofPatrice Onno
In the present work, an image is decomposed into image blocks. In this scheme a low bit rate still image compression is performed by compressing the indices of vector quantization and residual codebook is generated by using Modified Fuzzy Possibilistic C-Means with Repulsion and Weighted Mahalanobis...
Recently, vector quantization (VQ) has received considerable attention, and has become an effective tool for image compression. It provides a high compression ratio and a simple decoding process. However, studies on the practical implementation of VQ have revealed some major difficulties such as edge...
Patel, "Image Compression Using DWT and Vector Quantization", International Journal of Innovative Research in Computer and Communication Engineering, Vol. 1, Issue 3, May 2013.Tejas S. Patel, Ravindra Modi, Keyur J. Patel, "Image Compression Using DWT and Vector Quantization", International ...
Vector Quantization of Image Subbands: A Survey Subband and wavelet decompositions are powerful tools in image coding because of their decorrelating effects on image pixels, the concentration of energy i... PC Cosman,RM Gray,M Vetterli - 《IEEE Transactions on Image Processing》 被引量: 463发表...
Image compression using vector quantization (VQ) results in highly correlated indices. The correlation between these indices is used to reduce the bits needed to represent them. This is done by many index compression algorithms such as the Hu and Chang, search order coding (SOC), and switching ...
Vector Quantization and Signal Compression Textbook © 1992 Overview Authors: Allen Gersho , Robert M. Gray Part of the book series: The Springer International Series in Engineering and Computer Science (SECS, volume 159) 19k Accesses 3 Altmetric This is a preview of subscription content, ...
In this paper, image compression using hybrid vector quantization scheme such as Multistage Vector Quantization (MSVQ) and Pyramid Vector Quantization (PVQ... S Esakkirajan,T Veerakumar,VS Murugan,... - 《International Journal of Signal Processing》 被引量: 9发表: 2008年 Image Compression usin...
still image compressionvector quantizationadaptive resolution conversioncodebook designA novel image compression algorithm based on vector quantization (VQ) technique is proposed in this paper. Adaptive resolution VQ (AR-VQ) method, which is composed of three key techniques, i.e., the edge detection,...
Method of categories quantization coding for image based on compressed sensing基于压缩感知理论的分类量化图像编码方法* For the problem in vector quantization that the compression ratio is slow and image restoration result is not satisfactory,and according to the sparsity pr... ZHANG Wei,ZENG Fanzi,ZEN...