2006 Fiscal Year Final Research Report Summary
Research on an adaptive frame rate control technique and its applications for high-frame-rate motion images
| Project/Area Number |
17500064
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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 |
Media informatics/Database
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| Research Institution | University of Fukui |
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Principal Investigator |
YOSHIDA Toshiyuki University of Fukui, Faculty of Eng., Professor, 工学部, 教授 (50240297)
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| Project Period (FY) |
2005 – 2006
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| Keywords | motion images / frame rate / adaptive control / subjective image quality / coding / rate control |
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| Research Abstract |
This two-year research aims at a development of a novel compression coding technique for high-frame-rate motion images which maximizes the image quality within a restricted transmission bit rate. The detailed objects include (1) a development of an adaptive and local frame rate control technique for high-frame-rate motion images, (2) a derivation of a prediction technique for the temporal image quality for image sequences generated by (1), and (3) a development of a coding algorithm which maximizes the spatio-temporal total image quality based on the results (1) and (2).
In 2005, we have investigated the issues (1) and (2), and proposed an adaptive frame-rate control technique which can adapt to non-stationary motion while suppress motion jaggyness.
Based on the technique obtained in 2005, we have tried to develop a novel MPEG-4 encoder in 2006, which encodes a target image sequence with the "optimal frame rate" derived by maximizing the estimated total image quality (MOS). The resulting image sequences were compared to fixed-frame-rate ones to confirm the effectiveness of our approach.
From these results, we believe that our final goals have been completely achieved.
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