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- W2904794117 abstract "Evolutions of the Internet of Things (IoT) in the next years are likely to boost mobile video demand to an unprecedented level. A large number of battery-powered systems will integrate an Hevc video codec, implementing the latest encoding MPEG standard, and these systems will need to be energy efficient. Constraining the energy consumption of Hevc encoders is a challenging task, especially for embedded applications based on software encoders. The most efficient approach to reduce the energy consumption of an Hevc encoder consists in optimizing the quad-tree block partitioning of the image and trade-off compression efficiency and energy consumption by efficiently choosing the near-optimal pixel block sizes. For the purpose of reducing the energy consumption of a real-time Hevc Intra encoder, this paper proposes and compares two methods that predict the quad-tree partitioning in “one-shot”, i.e. without iterating. These methods drastically limit the computational cost of the recursive Rate-Distortion Optimization (RDO) process. The first proposed method uses a Probabilistic approach whereas the second method is based on Machine Learning approach. Experimental results show that both methods are capable of reducing the energy consumption of an embedded Hevc encoder of 58% for a bit rate increase of respectively 3.93% and 3.6%." @default.
- W2904794117 created "2018-12-22" @default.
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- W2904794117 date "2018-12-14" @default.
- W2904794117 modified "2023-10-17" @default.
- W2904794117 title "Probabilistic Approach Versus Machine Learning for One-Shot Quad-Tree Prediction in an Intra HEVC Encoder" @default.
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- W2904794117 doi "https://doi.org/10.1007/s11265-018-1426-z" @default.
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