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- W2963855951 abstract "Many information systems employ lossy compression as a crucial intermediate stage among other processing components. While the important distortion is defined by the system's input and output signals, the compression usually ignores the system structure, therefore, leading to an overall suboptimal rate-distortion performance. In this paper we propose a compression methodology for an operational rate-distortion optimization considering a known system layout, modeled using linear operators and noise. Using the alternating direction method of multipliers (ADMM) technique, we show that the design of the new globally-optimized compression reduces to a standard compression of a “system adjusted” signal. Essentially, the proposed framework leverages standard compression techniques to address practical settings of the remote source coding problem. We further explain the main ideas of our method by theoretically studying the case of a cyclo-stationary Gaussian signal. We present experimental results for coding of one-dimensional signals and for video compression using the HEVC standard, showing significant gains by the adjustment to an acquisition-rendering system." @default.
- W2963855951 created "2019-07-30" @default.
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- W2963855951 date "2018-06-01" @default.
- W2963855951 modified "2023-09-28" @default.
- W2963855951 title "System-Aware Compression" @default.
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- W2963855951 doi "https://doi.org/10.1109/isit.2018.8437643" @default.
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