| Presentation | 1996/3/8 Contour Based Image Coding by Vector Quantization of Wavelet Energy Distribution Makoto Nakashizuka, Yuji Hiura, Hisakazu Kikuchi, Ikuo Ishii, Hideo Makino, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we present a contour based image compression technique by sampling and vector quatization of wavelet energy distribution. The wavelet energy distribution is defined as squared sum of horizontal or vertical components of discrete dyadic wavelet transform. The energy distribution is a rotation insensitive multi-scale representation and represents a gradient intensity in multiscale. The proposed compression technique represents contours by multiscale, and can describe the smoothness of edges on contours. In image reconstruction, coarse-to-fine recovery algorithm is applied to the vector-quantized edge representation to decrease the danger trap into the local minimum. Finally, the image compression at very low bit-rate and comparison with JPEG are demonstrated. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | wavelet transform / contour based image coding / image recovery / contour detection / vector quantization |
| Paper # | CAS95-122,DSP95-177,CS95-200 |
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| Conference Information | |
| Committee | CAS |
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| Conference Date | 1996/3/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Circuits and Systems (CAS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Contour Based Image Coding by Vector Quantization of Wavelet Energy Distribution |
| Sub Title (in English) | |
| Keyword(1) | wavelet transform |
| Keyword(2) | contour based image coding |
| Keyword(3) | image recovery |
| Keyword(4) | contour detection |
| Keyword(5) | vector quantization |
| 1st Author's Name | Makoto Nakashizuka |
| 1st Author's Affiliation | Faculty of Engineering, Niigata University() |
| 2nd Author's Name | Yuji Hiura |
| 2nd Author's Affiliation | Faculty of Engineering, Niigata University |
| 3rd Author's Name | Hisakazu Kikuchi |
| 3rd Author's Affiliation | Faculty of Engineering, Niigata University |
| 4th Author's Name | Ikuo Ishii |
| 4th Author's Affiliation | Faculty of Engineering, Niigata University |
| 5th Author's Name | Hideo Makino |
| 5th Author's Affiliation | Faculty of Engineering, Niigata University |
| Date | 1996/3/8 |
| Paper # | CAS95-122,DSP95-177,CS95-200 |
| Volume (vol) | vol.95 |
| Number (no) | 556 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |