Motion Estimation with Power Scalability and Its VHDL Model(Special Section on Digital Signal Processing)
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概要
- 論文の詳細を見る
In MPEG standard, motion estimation (ME) is used to eliminate the temporal redundancy of video frames. This ME is the most time-consuming task in the encoding of video sequences and is also the one using the most power. Using low-bit images can save power of ME and a conventional architecturefixed to a certain bit width is used for low-bit motion estimator. It is known that there is a trade-off between power and image quality. ME may be used in various situations, and the relation between demands for power or image quality will depend on those circumstances. We therefore developed an architecture for a low-bit motion estimator with adjustable power consumption. In this architecture, we can select the bit width for the input image and adjust the amount of power for ME. To evaluate its effectiveness, we designed the motion estimator by VHDL and used the synthesis results to estimate the performance.
- 社団法人電子情報通信学会の論文
- 2000-08-25
著者
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Kiya H
Tokyo Metropolitan Univ. Tokyo Jpn
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Kiya Hitoshi
The Department Of Electrical Engineering Graduate School Of Engineering Tokyo Metropolitan Universit
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Kiya Hitoshi
Course. Of Info. And Commn. Sys. Eng. Tokyo Metro. Univ.
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Takagi Ayuko
The Department Of Electrical Engineering Graduate School Of Engineering Tokyo Metropolitan Universit
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Muramatsu S
Niigata Univ. Niigata‐shi Jpn
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Muramatsu Shogo
The Department Of Electrical And Electronic Engineering Faculty Of Engineering Niigata University
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Muramatsu Shogo
Graduate School Of Engineering Tokyo Metropolitan University
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Muramatsu Shogo
The Faculty Of Technology Tokyo Metropolitan University
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Kiya Hitoshi
The Department Of Electrical Engineering Graduate School Of Engineering Tokyo Metroporitan Universit
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Kiya Hitoshi
Faculty Of Technology Tokyo Metropolitan University
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Kiya Hitoshi
The Faculty Of Technology Tokyo Metropolitan University
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Kiya Hitoshi
Graduate Course Of Electronics Eng. Graduate School Of Eng. Tokyo Metropolitan University
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Kiya Hitoshi
Department Of Electrical Engineering Graduate School Of Engineering Tokyo Metropolitan University
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