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- W2162025595 abstract "Due to the large amount of data transfers it involves, the motion estimation (ME) engine is one of the most power-consuming components of any predictive video codec. As a consequence, power-optimized video coding primarily relies on a carefully designed motion estimator. This paper first presents a block ME algorithm that meets high-quality inter-frame prediction and low computational complexity requirements. It relies on a set of rules common to all recent fast and adaptive ME algorithms, but is designed in order to allow for easy and prolific data reuse. The adjacent order of the candidate positions during the search increases the locality and maintains a near-regular data flow, which results in a decrease of the data transfers and a low control complexity. Together with the computational complexity reduction, it enables cost-efficient very large scale integration realizations. A pipelined parallel architecture is then proposed and discussed. It is generic in the sense that it is suited both to the full-pel and half-pel ME. It is efficient because it allows for close to 100% hardware utilization and a sharp decrease of the peak memory bandwidth. It is suited to low-power implementation, as it enables larger data reuse factors for the most probable stages of the adaptive algorithm, which reduces the average memory bandwidth and power consumption." @default.
- W2162025595 created "2016-06-24" @default.
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- W2162025595 date "2002-12-01" @default.
- W2162025595 modified "2023-09-25" @default.
- W2162025595 title "Algorithmic and architectural co-design of a motion-estimation engine for low-power video devices" @default.
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- W2162025595 doi "https://doi.org/10.1109/tcsvt.2002.806810" @default.
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