| 2007 | ACIVS | A New Optimum-Word-Length-Assignment (OWLA) Multiplierless Integer DCT for Lossless/Lossy Image Coding and Its Performance Evaluation. | Somchart Chokchaitam, Masahiro Iwahashi |
| 2005 | ICIP | A new structure of integer DCT least sensitive to finite word length expression of multipliers. | Masahiro Iwahashi, Dang Khoa Dang, Masahiro Ohnishi, Somchart Chokchaitam |
| 2004 | ICIP | Theoretical analysis on optimum word length assignment for integer dct. | Masahiro Iwahashi, Kohtaro Nakagawa, Somchart Chokchaitam, Yoshihide Tonomura |
| 2004 | ICIP | Minrmum hardware implementation of multipliers of the lifting wavelet transform. | Yoshinobu Tonomura, Somchart Chokchaitam, Masahiro Iwahashi |
| 2003 | ISCAS | Optimum word length allocation for multipliers of integer DCT. | Masahiro Iwahashi, Osamu Nishida, Somchart Chokchaitam, Noriyoshi Kambayashi |
| 2002 | ISCAS | Lossless, near-lossless and lossy adaptive coding based on the lossless DCT. | Somchart Chokchaitam, Masahiro Iwahashi |
| 2002 | ISCAS | Lossless/lossy image compression based on non-separable two-dimensional L-SSKF. | Somchart Chokchaitam, Masahiro Iwahashi |
| 2002 | ISCAS | Lossless/lossy coding gain to evaluate coding performance of the lossless/lossy wavelet. | Somchart Chokchaitam, Masahiro Iwahashi |
| 2001 | ISCAS | A signal reconstruction method based on an unwrapping of signals in transform domain. | Pavol Zavarsky, Noriyoshi Kambayashi, Somchart Chokchaitam, Masahiro Iwahashi, Masahiro Kamiya |
| 1999 | ICIP | Lossless/Lossy Progressive Coding Based on Reversible Wavelet and Lossless Multi-Channel Prediction. | Masahiro Iwahashi, Shinji Fukuma, Somchart Chokchaitam, Noriyoshi Kambayashi |
| 1999 | ISCAS | Lossless multi channel predictive coding for images. | Masahiro Iwahashi, Narong Buabthong, Somchart Chokchaitam, Noriyoshi Kambayashi |