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Current battery-powered devices that manipulate digital videos must consider the energy consumption of this process as an important issue, especially when high or ultra-high definition videos are handled. In this scenario, this paper proposes a solution to reduce the energy consumption in video coding systems by reducing the external memory communication during the motion estimation. The scheme presented...
This paper presents a novel solution for external memory bandwidth reduction in video coding systems. The approach is based on reference frame compression, using a differential coding and a hardware-aware adaptation of the traditional Huffman algorithm, besides, it is a lossless solution fully compliant to state-of-art video coding standards, as H.264/AVC and HEVC. This solution is called DRFVLC (Differential...
This paper presents an efficient solution for external memory bandwidth reduction focusing in the state-of-art video coding standards, like H.264/AVC and HEVC. The proposed approach is based in reference frame compression using a differential coding and a hardware-efficiently adaptation of the traditional Huffman algorithm, besides, it is a lossless solution and fully complied to state-of-art video...
In current video coders many modules that compose the encoder need to write and to read a large amount of data from external memory. It requires a large memory bandwidth, with significant impact on energy consumption. In this context, this paper presents the hardware architectures of the Reference Frame Context Adaptive Variable-Length Compressor with 4 coding tables (RFCAVLC), which is a standard-free...
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