| Presentation | 2002/5/2 A JPEG Image Enlargement Method with the Prediction of High-frequency Components Ryo Koike, Yasumasa TAKAHASHI, Akira TAGICHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | It is necessary for getting the enlarged digital images to predict unknown high frequency components which are lost by sampling. We have proposed the image enlarging method based on the Laplacian pyramid representation which can predict the unknown high frequency components. We call this method LP enlarging method. Since the JPEG coded images are looked blurring and are appeared the blocking effects, the LP enlarging method isn't able to be applied to JPEG coded images. In this paper, we extend the LP enlarging method to be used for JPEG coded images. The novel method introduce a ε-filter to reduce the blocking effects. Moreover, we tune the parameters of the LP enlarging method for JPEG coded images. We clear the effectiveness of the proposed method through a lot of experimental results. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | JPEG coded images / enlarged digital images / ε-filter / multimedia signal processing |
| Paper # | DSP2002-18 |
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| Conference Information | |
| Committee | DSP |
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| Conference Date | 2002/5/2(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Chair | |
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| Paper Information | |
| Registration To | Digital Signal Processing (DSP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A JPEG Image Enlargement Method with the Prediction of High-frequency Components |
| Sub Title (in English) | |
| Keyword(1) | JPEG coded images |
| Keyword(2) | enlarged digital images |
| Keyword(3) | ε-filter |
| Keyword(4) | multimedia signal processing |
| 1st Author's Name | Ryo Koike |
| 1st Author's Affiliation | Department of Electrical and Electronic Engineering, Musashi Institute of Technology.() |
| 2nd Author's Name | Yasumasa TAKAHASHI |
| 2nd Author's Affiliation | Department of Electrical and Electronic Engineering, Musashi Institute of Technology. |
| 3rd Author's Name | Akira TAGICHI |
| 3rd Author's Affiliation | Department of Electrical and Electronic Engineering, Musashi Institute of Technology. |
| Date | 2002/5/2 |
| Paper # | DSP2002-18 |
| Volume (vol) | vol.102 |
| Number (no) | 41 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |