| Project/Area Number |
19560405
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Communication/Network engineering
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| Research Institution | Kagoshima National College of Technology |
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Principal Investigator |
KAJISA Kiyomitsu Kagoshima National College of Technology, 情報工学科, 教授 (10342594)
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| Project Period (FY) |
2007 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | 可逆符号化 / 準可逆 / 誤差拡散 / 情報埋め込み / 色変換 / 縮退 / 算術符号化 / JPEG-LS / 符号化 / 誤差拡散法 / 準可逆符号化 / ブロック符号化 |
|---|
| Research Abstract |
In this research, five new methods were proposed concerning on lossless and near-lossless coding of continuous-tone images and information embedding. Actually, five new methods : (1) block coding of error-diffused images with information embedded, (2) an error diffusion method for improving compression ratio by arithmetic block coding, (3) an information embedding method in JPEG-LS lossless coding, (4) a coding method of ROI (Region Of Interest) by reversible color transform and its background by near-lossless, (5) an improved method of modulo reduction of reversible color transform, were proposed.
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