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Rate–distortion theory is a major branch of information theory which provides the theoretical foundations for lossy data compression; it addresses the problem of determining the minimal number of bits per symbol, as measured by the rate R, that should be communicated over a channel, so that the source (input signal) can be approximately reconstructed at the receiver (output signal) without exceeding an expected distortion D.

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  • Rate–distortion theory (en)
  • Rate-Distortion-Theorie (de)
  • 부호율-변형 이론 (ko)
  • 率失真理论 (zh)
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  • Die Rate-Distortion-Theorie (deutsch: Rate-Verzerrungs-Theorie) ist eine theoretische Grundlage für Berechnungen in der Informationstheorie. Mit ihrer Hilfe kann rechnerisch eine untere Grenze der Datenübertragungsrate für eine Nachrichtenquelle bestimmt werden, bei der eine Rekonstruktion der Nachricht am Empfänger unter Einhaltung eines vorgegebenen Gütekriteriums, der sogenannten Verzerrung, noch gewährleistet werden kann. Entwickelt wurde sie von Claude E. Shannon, der als Begründer der Informationstheorie gilt. (de)
  • Rate–distortion theory is a major branch of information theory which provides the theoretical foundations for lossy data compression; it addresses the problem of determining the minimal number of bits per symbol, as measured by the rate R, that should be communicated over a channel, so that the source (input signal) can be approximately reconstructed at the receiver (output signal) without exceeding an expected distortion D. (en)
  • 부호율-변형 이론은 손실압축 정보 이론의 주요 줄기이다. 이 이론은 주어진 변형값인 를 가지면서 보낼 수 있는 최소의 부호율(엔트로피 또는 정보)인 을 알려주고 있다. (ko)
  • 数据率失真理论(Rate distortion theory)或稱信息率-失真理論(information rate-distortion theory)是信息论的主要分支,其的基本问题可以归结如下:对于一个给定的信源(source, input signal)分布与失真度量,在特定的码率下能达到的最小期望失真;或者为了满足一定的失真限制,可允許的最大码率為何,D 定義為失真的符號。 要完全避免失真幾乎不可能。處理信號時必須允許有限度的失真﹐可減小所必需的信息率。1959年﹐Claude Shannon 首先發表《逼真度準則下的離散信源編碼定理》一文,提出了率失真函數的概念。 (zh)
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  • Die Rate-Distortion-Theorie (deutsch: Rate-Verzerrungs-Theorie) ist eine theoretische Grundlage für Berechnungen in der Informationstheorie. Mit ihrer Hilfe kann rechnerisch eine untere Grenze der Datenübertragungsrate für eine Nachrichtenquelle bestimmt werden, bei der eine Rekonstruktion der Nachricht am Empfänger unter Einhaltung eines vorgegebenen Gütekriteriums, der sogenannten Verzerrung, noch gewährleistet werden kann. Entwickelt wurde sie von Claude E. Shannon, der als Begründer der Informationstheorie gilt. (de)
  • Rate–distortion theory is a major branch of information theory which provides the theoretical foundations for lossy data compression; it addresses the problem of determining the minimal number of bits per symbol, as measured by the rate R, that should be communicated over a channel, so that the source (input signal) can be approximately reconstructed at the receiver (output signal) without exceeding an expected distortion D. (en)
  • 부호율-변형 이론은 손실압축 정보 이론의 주요 줄기이다. 이 이론은 주어진 변형값인 를 가지면서 보낼 수 있는 최소의 부호율(엔트로피 또는 정보)인 을 알려주고 있다. (ko)
  • 数据率失真理论(Rate distortion theory)或稱信息率-失真理論(information rate-distortion theory)是信息论的主要分支,其的基本问题可以归结如下:对于一个给定的信源(source, input signal)分布与失真度量,在特定的码率下能达到的最小期望失真;或者为了满足一定的失真限制,可允許的最大码率為何,D 定義為失真的符號。 要完全避免失真幾乎不可能。處理信號時必須允許有限度的失真﹐可減小所必需的信息率。1959年﹐Claude Shannon 首先發表《逼真度準則下的離散信源編碼定理》一文,提出了率失真函數的概念。 (zh)
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