整数離散コサイン変換の乗算器係数感度の評価

サコン ウドムシリ; ナタニ ボリブーンヒラン; マリエレーナ パラシオス ペレス; 岩橋 政宏

doi:10.11371/wiieej.07-01.0_5

Reports of the 233rd Technical Conference of the Institute of Image Electronics Engineers of Japan

Session ID : 07-01-02

DOI https://doi.org/10.11371/wiieej.07-01.0_5

Conference information

Co-host: The Institute of Image Electronics Engineers of Japan, The Institute of Image Information and Television Engineers

9:25-10:40 Chair: Hiroshi YOSHIKAWA, Nihon University

Evaluation of Sensitivity of Integer DCTs

*Sakol UDOMSIRI, Natanit BORIBOONHIRAN, Marielena Palacios PEREZ, Masahiro IWAHASHI

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Keywords: Sensitivity, combination, Integer DCT, evaluation

CONFERENCE PROCEEDINGS RESTRICTED ACCESS

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Abstract

Nowadays, various types of the “ integer ” DCT which outputs integer numbers have been widely investigated and its performance have been continuously improved for being able to be used in many areas such as data compression. This report evaluates performance of various integer DCTs and finds the best integer DCT structure from all the possible combinations of various rotation transforms. As a result, it is found that the best integer DCT structure gives the least sensitivity for the finite word length expression of multiplier coefficients and improves PSNR up to 4.29 [dB] for the AR(1) model as an input signal.

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