coding system
51Efficient 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… …
52Arithmetic coding — is a method for lossless data compression. Normally, a string of characters such as the words hello there is represented using a fixed number of bits per character, as in the ASCII code. Like Huffman coding, arithmetic coding is a form of… …
53Advanced Video Coding — H.264 Pour les articles homonymes, voir AVC. H.264, ou MPEG 4 AVC (Advanced Video Coding), est une norme de codage vidéo développée conjointement par l UIT T Q.6/SG16 Video Coding Experts Group (VCEG) ainsi que l ISO/CEI Moving Picture Experts… …
54Composite Health Care System — The Composite Health Care System (CHCS) is a VMS based medical informatics system designed by Science Applications International Corporation (SAIC) and used by all United States and OCONUS military health care centers. In 1988, SAIC won a… …
55Hard coding — (also, hard coding or hardcoding) refers to the software development practice of embedding input or configuration data directly into the source code of a program or other executable object, or fixed formatting of the data, instead of obtaining… …
56Speech coding — is the application of data compression of digital audio signals containing speech. Speech coding uses speech specific parameter estimation using audio signal processing techniques to model the speech signal, combined with generic data compression …
57Sub-band coding — (SBC) is any form of transform coding that breaks a signal into a number of different frequency bands and encodes each one independently. This decomposition is often the first step in data compression for audio and video signals.Basic… …
58Shannon's source coding theorem — In information theory, Shannon s source coding theorem (or noiseless coding theorem) establishes the limits to possible data compression, and the operational meaning of the Shannon entropy.The source coding theorem shows that (in the limit, as… …
59Homeland Security Advisory System — HSAS redirects here. For the rock band, see Hagar Schon Aaronson Shrieve. For the UK terror threat level system, see UK Threat Levels. Homeland Security Advisory System color chart In the United States, the Homeland Security Advisory System was a …
60Variable Coding and Modulation — is a type of data frame structure, where the size, coding and modulation type of the frame is best varied to the conditions.While VCM is a one way process, if a feedback loop (or return channel) is introduced then this can taken further to… …
