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カラー圧縮再生画像上の歪み量の比較評価
https://kindai.repo.nii.ac.jp/records/12803
https://kindai.repo.nii.ac.jp/records/12803bedcd9a1-ac6b-49d8-a2dd-094d3e3a6618
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
AA12315376-20120315-0055.pdf (290.5 kB)
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| Item type | ☆紀要論文 / Departmental Bulletin Paper(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2012-07-06 | |||||||||
| タイトル | ||||||||||
| タイトル | カラー圧縮再生画像上の歪み量の比較評価 | |||||||||
| タイトル | ||||||||||
| タイトル | Comparison and Evaluation of Noise on Reconstructed Image | |||||||||
| 言語 | en | |||||||||
| 著者 |
谷口, 香苗
× 谷口, 香苗
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| 言語 | ||||||||||
| 言語 | jpn | |||||||||
| キーワード | ||||||||||
| 主題 | quantization error, block distortion, mosquito noise, quantification, image quality | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
| 資源タイプ | departmental bulletin paper | |||||||||
| 著者(英) | ||||||||||
| en | ||||||||||
| Taniguchi, Kanae | ||||||||||
| 著者 所属 | ||||||||||
| 近畿大学工業高等専門学校 総合システム工学科 情報コミュニケーションコース | ||||||||||
| 著者所属(翻訳) | ||||||||||
| Kinki University Technical College | ||||||||||
| 版 | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| 出版者 名前 | ||||||||||
| 出版者 | 近畿大学工業高等専門学校 | |||||||||
| 書誌情報 |
近畿大学工業高等専門学校研究紀要 en : Research reports Kinki University Technical College 号 5, p. 55-58, 発行日 2012-03-01 |
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| ISSN | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 18824374 | |||||||||
| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | [Abstract] There are block distortion and mosquito noise as an especial distortion on a reconstructed image through compression data of a color still image by DCT method. I quantify these distortions each basis of four type of DCT and computed block distortion and mosquito noise for each type occured around block boundary. In the results of a comparative for the amount of these distortions, block distortions of Type-I and III showed the least distortion, and mosquito noise of Type-IV has the least and it of Type-III was next one. The amount distortion as added in two distortion was also thesame results in the case of mosquito noise. By the way, WDCT method is an improvement method for degradation image with super high compression ratio of a defect of DCT method. I computed theoretically PSNR, evaluation indicator for objective image quality, for the amount distortion by DCT method and WDCT method. The best PSNR was WDCT method with k＝8 (transform length kN and inverse transform length N) which of an internal resolution conversion, and worst one was usual DCT method. | |||||||||
| フォーマット | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | application/pdf | |||||||||
