Somchart CHOKCHAITAM


Channel Scaling for Integer Implementation of Minimum Lifting 2D Wavelet Transform
Teerapong ORACHON Taichi YOSHIDA Somchart CHOKCHAITAM Masahiro IWAHASHI Hitoshi KIYA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/07/01
Vol. E99-A  No. 7  pp. 1420-1429
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
wavelettransformimagecodinglifting
 Summary | Full Text:PDF(1.2MB)

A New Unified Lossless/Lossy Image Compression Based on a New Integer DCT
Somchart CHOKCHAITAM Masahiro IWAHASHI Somchai JITAPUNKUL 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/07/01
Vol. E88-D  No. 7  pp. 1598-1606
Type of Manuscript:  Special Section PAPER (Special Section on Recent Advances in Circuits and Systems--Part 1)
Category: Image Processing and Multimedia Systems
Keyword: 
Integer-DCTlosslesslossyimage compressionrounding operationrounding effect
 Summary | Full Text:PDF(1.3MB)

Performance Evaluation of Lossless/Lossy Wavelets for Image Compression under Lossless/Lossy Coding Criterion
Somchart CHOKCHAITAM Masahiro IWAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/08/01
Vol. E85-A  No. 8  pp. 1882-1891
Type of Manuscript:  Special Section LETTER (Special Section on Digital Signal Processing)
Category: Image/Visual Signal Processing
Keyword: 
losslesslossywaveletcoding gain
 Summary | Full Text:PDF(2.6MB)

A Bit-Rate Adaptive Coding System Based on Lossless DCT
Somchart CHOKCHAITAM Masahiro IWAHASHI Pavol ZAVARSKY Noriyoshi KAMBAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/02/01
Vol. E85-A  No. 2  pp. 403-413
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
lossless DCT (L-DCT)codinglossylosslessnear-losslessadaptive
 Summary | Full Text:PDF(1.5MB)

An Unwrapping of Signals in Transform Domain and Its Application in Signal Reconstruction
Pavol ZAVARSKY Nobuo FUJII Noriyoshi KAMBAYASHI Masahiro IWAHASHI Somchart CHOKCHAITAM 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/07/01
Vol. E84-A  No. 7  pp. 1765-1771
Type of Manuscript:  PAPER
Category: Image
Keyword: 
image compressionsignal reconstructionperfect reconstruction filter bank
 Summary | Full Text:PDF(782.5KB)

Integrated Lossy and Lossless Image Coding Based on Lossless Wavelet Transform and Lossy-Lossless Multi-Channel Prediction
Somchart CHOKCHAITAM Masahiro IWAHASHI Pavol ZAVARSKY Noriyoshi KAMBAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/05/01
Vol. E84-A  No. 5  pp. 1326-1338
Type of Manuscript:  PAPER
Category: Image
Keyword: 
imagecodinglosslesslossyfilter bank
 Summary | Full Text:PDF(3.1MB)

Lossless Scalable Coding of Images via Lossless Multi-Channel Prediction
Masahiro IWAHASHI Somchart CHOKCHAITAM Narong BUABTHONG Pavol ZAVARSKY Noriyoshi KAMBAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/07/25
Vol. E83-A  No. 7  pp. 1450-1457
Type of Manuscript:  PAPER
Category: Image
Keyword: 
losslesscodingwaveletJPEG
 Summary | Full Text:PDF(3.3MB)