Image vector quantization using geometric transform and lossless index coding

2013 ◽  
Vol 52 (3) ◽  
pp. 037402 ◽  
Author(s):  
Yu-Chen Hu ◽  
Chia-Hsien Wen ◽  
Chun-Chi Lo ◽  
Wu-Lin Chen
Keyword(s):  
Vector Quantization ◽  
Index Coding

An index coding algorithm for image vector quantization

2003 ◽  
Vol 49 (4) ◽  
pp. 1513-1520 ◽  
Author(s):  
Pei-Yin Chen ◽  
Ren-Der Chen
Keyword(s):  
Vector Quantization ◽  
Index Coding

Effective Multiple Vector Quantization for Image Compression

2007 ◽  
Vol 11 (10) ◽  
pp. 1189-1196
Author(s):  
Noritaka Shigei ◽  
◽  
Hiromi Miyajima ◽  
Michiharu Maeda ◽  
Lixin Ma ◽  
...  
Keyword(s):  
Neural Network ◽  
Image Compression ◽  
Image Restoration ◽  
Vector Quantization ◽  
High Quality ◽  
Index Coding ◽  
Network Algorithm ◽  
Neural Network Algorithm ◽  
Compressed Data

Multiple-VQ methods generate multiple independent codebooks to compress an image by using a neural network algorithm. In the image restoration, the methods restore low quality images from the multiple codebooks, and then combine the low quality ones into a high quality one. However, the naive implementation of these methods increases the compressed data size too much. This paper proposes two improving techniques to this problem: “index inference” and “ranking based index coding.” It is shown that index inference and ranking based index coding are effective for smaller and larger codebook sizes, respectively.

Image Compression Using Vector Quantization with Variable Block Size Division

2010 ◽  
Vol 130 (8) ◽  
pp. 1431-1439 ◽  
Author(s):  
Hiroki Matsumoto ◽  
Fumito Kichikawa ◽  
Kazuya Sasazaki ◽  
Junji Maeda ◽  
Yukinori Suzuki
Keyword(s):  
Image Compression ◽  
Vector Quantization ◽  
Block Size ◽  
Variable Block
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