Presentation 1999/12/17
New Interblock Prediction of DCT Coefficients
Yoshiyuki ITO, Toshiaki FUJII, Tadahiko KIMOTO, Masayuki TANIMOTO,
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Abstract(in English) Discrete consine transform (DCT) is widely used as a method of image coding. In the image coding scheme using DCT like JPEG, the DC coefficient is predicted by using the correlation of neighboring blocks. Further, the prediction is done on the AC coefficient in MPEG4, However, the prediction of the AC coefficient is difficult because the correlation of it is low, and the efficiency may reversely lower by the prediction. By using all blocks in the image, it may be able to do the prediction which is better than the conventional method. In this paper, we propose and examine new prediction system of the AC coefficient using all blocks.
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Keyword(in English) image compression / DCT / MPEG4 / interblock prediction
Paper # IE99-114
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Committee IE
Conference Date 1999/12/17(1days)
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Registration To Image Engineering (IE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) New Interblock Prediction of DCT Coefficients
Sub Title (in English)
Keyword(1) image compression
Keyword(2) DCT
Keyword(3) MPEG4
Keyword(4) interblock prediction
1st Author's Name Yoshiyuki ITO
1st Author's Affiliation Graduate School of Engineering, Nagoya University()
2nd Author's Name Toshiaki FUJII
2nd Author's Affiliation Graduate School of Engineering, Nagoya University
3rd Author's Name Tadahiko KIMOTO
3rd Author's Affiliation Graduate School of Engineering, Nagoya University
4th Author's Name Masayuki TANIMOTO
4th Author's Affiliation Graduate School of Engineering, Nagoya University
Date 1999/12/17
Paper # IE99-114
Volume (vol) vol.99
Number (no) 513
Page pp.pp.-
#Pages 5
Date of Issue