Presentation | 1997/10/24 Content-Based 2D-DCT Coding Using Symmetric Padding Satoshi MISAKA, Yuichiro NAKAYA, |
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PDF Download Page | PDF download Page Link |
Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | Content-based coding, which independently encodes the objects included in a picture, has recently attracted considerable attention for its property of enabling object-based editing of still and motion pictures. In content-based coding, it is required to code arbitrarily shaped objects. Therefore, it is necessary to apply 2D-DCT to 8x8 blocks that include object boundaries. Padding is a technique that enables coding of such blocks by assigning imaginary values to the pixels that are not included in the object. In this paper, a 2D-DCT coding method, which changes the padding method accordingly to the features of the object shape, is proposed. Due to the increase of the number of zero DCT coefficients, the coding performance is improved by using this method. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Content-Based Coding / 2D-DCT / Padding / Scanning |
Paper # | IE97-79 |
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Conference Information | |
Committee | IE |
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Conference Date | 1997/10/24(1days) |
Place (in Japanese) | (See Japanese page) |
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Topics (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Image Engineering (IE) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Content-Based 2D-DCT Coding Using Symmetric Padding |
Sub Title (in English) | |
Keyword(1) | Content-Based Coding |
Keyword(2) | 2D-DCT |
Keyword(3) | Padding |
Keyword(4) | Scanning |
1st Author's Name | Satoshi MISAKA |
1st Author's Affiliation | Hitachi, Ltd. Central Research Laboratory() |
2nd Author's Name | Yuichiro NAKAYA |
2nd Author's Affiliation | Hitachi, Ltd. Central Research Laboratory |
Date | 1997/10/24 |
Paper # | IE97-79 |
Volume (vol) | vol.97 |
Number (no) | 339 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |