variable-length encoding

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• Variable-width encoding — This article is about the storage of text in computers. For the transmission of data across noisy channels, see variable length code. A variable width encoding is a type of character encoding scheme in which codes of differing lengths are used to …   Wikipedia

• Variable-length code — In coding theory a variable length code is a code which maps source symbols to a variable number of bits. Variable length codes can allow sources to be compressed and decompressed with zero error (lossless data compression) and still be read back …   Wikipedia

• Variable-length quantity — A variable length quantity (VLQ) is a universal code that uses an arbitrary number of binary octets (eight bit bytes) to represent an infinitely large integer. It was defined for use in the standard MIDI file format [ [http://www.borg.com/… …   Wikipedia

• Context-adaptive variable-length coding — (CAVLC) is a form of entropy coding used in H.264/MPEG 4 AVC video encoding. It is an inherently lossless compression technique, like almost all entropy coders. In H.264/MPEG 4 AVC, it is used to encode residual, zig zag order, blocks of… …   Wikipedia

• Character encoding — Special characters redirects here. For the Wikipedia editor s handbook page, see Help:Special characters. A character encoding system consists of a code that pairs each character from a given repertoire with something else, such as a sequence of… …   Wikipedia

• Run length limited — or RLL coding is a technique that is used to store data on recordable media. Specifically, RLL prevents long stretches of repeated bits from causing the signal recorded on media to not change for an excessive period, by modulating the data. RLL… …   Wikipedia

• Entropy encoding — In information theory an entropy encoding is a lossless data compression scheme that is independent of the specific characteristics of the medium. One of the main types of entropy coding creates and assigns a unique prefix free code to each… …   Wikipedia

• 36-bit word length — Many early computers aimed at the scientific market had a 36 bit word length. This word length was just long enough to represent positive and negative integers to an accuracy of ten decimal digits (35 bits would have been the minimum). It also… …   Wikipedia

• Type-length-value — Within data communication protocols, optional information may be encoded as a type length value or TLV element inside of the protocol.The type and length fields are fixed in size (typically 1 4 bytes), and the value field is of variable size.… …   Wikipedia

• Minimum message length — (MML) is a formal information theory restatement of Occam s Razor: even when models are not equal in goodness of fit accuracy to the observed data, the one generating the shortest overall message is more likely to be correct (where the message… …   Wikipedia

• Minimum description length — The minimum description length (MDL) principle is a formalization of Occam s Razor in which the best hypothesis for a given set of data is the one that leads to the best compression of the data. MDL was introduced by Jorma Rissanen in 1978. It is …   Wikipedia