data distortion

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• Data compression — Source coding redirects here. For the term in computer programming, see Source code. In computer science and information theory, data compression, source coding or bit rate reduction is the process of encoding information using fewer bits than… …   Wikipedia

• data compression — Process of reducing the amount of data needed for storage or transmission of a given piece of information (text, graphics, video, sound, etc.), typically by use of encoding techniques. Data compression is characterized as either lossy or lossless …   Universalium

• Determining the number of clusters in a data set — Determining the number of clusters in a data set, a quantity often labeled k as in the k means algorithm, is a frequent problem in data clustering, and is a distinct issue from the process of actually solving the clustering problem. For a certain …   Wikipedia

• 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 amount of entropy (or information) R that should be communicated over a channel, so …   Wikipedia

• Degree of start-stop distortion — In telecommunication, the term degree of start stop distortion has the following meanings: In asynchronous data transmission, the ratio of (a) the absolute value of the maximum measured difference between the actual and theoretical intervals… …   Wikipedia

• Missing data — In statistics, missing data, or missing values, occur when no data value is stored for the variable in the current observation. Missing data are a common occurrence and can have a significant effect on the conclusions that can be drawn from the… …   Wikipedia

• Rate-Distortion-Theorie — 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… …   Deutsch Wikipedia

• Rate–distortion optimization — (also RDO or RD) is a method of improving video quality in video compression. The name refers to the optimization of the amount of distortion (loss of video quality) against the amount of data required to encode the video, the rate . While it is… …   Wikipedia

• Degree of isochronous distortion — The degree of isochronous distortion, in data transmission, is the ratio of the absolute value of the maximum measured difference between the actual and the theoretical intervals separating any two significant instants of modulation (or… …   Wikipedia

• Lossless data compression — is a class of data compression algorithms that allows the exact original data to be reconstructed from the compressed data. The term lossless is in contrast to lossy data compression, which only allows an approximation of the original data to be… …   Wikipedia

• Nikon D90 — Nikon D90[1] Type Digital single lens reflex Sensor 23.6 mm × 15.8 mm Nikon DX format RGB CMOS …   Wikipedia