redundancy coding

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• Coding theory — is the study of the properties of codes and their fitness for a specific application. Codes are used for data compression, cryptography, error correction and more recently also for network coding. Codes are studied by various scientific… …   Wikipedia

• Redundancy (information theory) — Redundancy in information theory is the number of bits used to transmit a message minus the number of bits of actual information in the message. Informally, it is the amount of wasted space used to transmit certain data. Data compression is a way …   Wikipedia

• Redundancy (user interfaces) — The user interface of a software application or operating system is sometimes described as redundant if the same task can be executed by several different methods. For example, a user is often able to open or save a project by navigating a menu… …   Wikipedia

• coding theory — noun The branch of mathematics dealing with the art of transmitting messages reliably over a noisy channel by adding redundancy to the message …   Wiktionary

• Huffman coding — Huffman tree generated from the exact frequencies of the text this is an example of a huffman tree . The frequencies and codes of each character are below. Encoding the sentence with this code requires 135 bits, as opposed of 288 bits if 36… …   Wikipedia

• List of algebraic coding theory topics — This is a list of algebraic coding theory topics. ARQ[disambiguation needed  ] Adler 32 BCH code BCJR algorithm Berger code Berlekamp Massey algo …   Wikipedia

• Efficient coding hypothesis — The efficient coding hypothesis was proposed by Horace Barlow in 1961 as a theoretical model of sensory coding in the brain. Within the brain, neurons often communicate with one another by sending electrical impulses referred to as action… …   Wikipedia

• Longitudinal redundancy check — In telecommunication, a longitudinal redundancy check (LRC) or horizontal redundancy check is a form of redundancy check that is applied independently to each of a parallel group of bit streams. The data must be divided into transmission blocks,… …   Wikipedia

• Adaptive Huffman coding — (also called Dynamic Huffman coding) is an adaptive coding technique based on Huffman coding. It permits building the code as the symbols are being transmitted, having no initial knowledge of source distribution, that allows one pass encoding and …   Wikipedia

• Transverse redundancy check — In telecommunications, a transverse redundancy check (TRC) or vertical redundancy check is a redundancy check for synchronized parallel bit streams that is applied once per bit time, across the bit streams. This requires additional parallel… …   Wikipedia

• Modified Huffman coding — is used in fax machines to encode black on white images (bitmaps). It combines the variable length codes of Huffman coding with the coding of repetitive data in run length encoding. External links Modified Huffman coding from UNESCO . Archived… …   Wikipedia