subsampled
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subsampled — v. take a small specimen from a larger sample; reduce the resolution of a digital image by using an algorithm (Computers) … English contemporary dictionary
MPEG-1 — Moving Picture Experts Group Phase 1 (MPEG 1) Filename extension .mpg, .mpeg, .mp1, .mp2, .mp3, .m1v, .m1a, .m2a, .mpa, .mpv Internet media type audio/mpeg, video/mpeg Developed by ISO, IEC Type of format audio, vid … Wikipedia
SMPTE D11 — SMPTE D11, also known as HDCAM, is a standard for the compression of high definition digital video. D11 source picture rates can be 24, 25 or 30 frames per second progressive scan, or 50 or 60 fields per second interlaced; compression yields… … Wikipedia
Chrominance — (chroma or C for short) is the signal used in video systems to convey the color information of the picture, separately from the accompanying luma signal (or Y for short). Chrominance is usually represented as two color difference components: U =… … Wikipedia
Nyquist–Shannon sampling theorem — Fig.1: Hypothetical spectrum of a bandlimited signal as a function of frequency The Nyquist–Shannon sampling theorem, after Harry Nyquist and Claude Shannon, is a fundamental result in the field of information theory, in particular… … Wikipedia
Chroma subsampling — is the practice of encoding images by implementing less resolution for chroma information than for luma information, taking advantage of the human visual system s lower acuity for color differences than for luminance.[1] It is used in many video… … Wikipedia
Polyphase quadrature filter — A polyphase quadrature filter, or PQF, is a filter bank which splits an input signal into a given number N (mostly a power of 2) of equidistant sub bands. These sub bands are subsampled by a factor of N, so they are critically sampled.This… … Wikipedia
Quadrature mirror filter — In digital signal processing, a quadrature mirror filter is a filter most commonly used to implement a filter bank that splits an input signal into two bands. The resulting high pass and low pass signals are often decimated by a factor of 2,… … Wikipedia
Serial digital interface — (SDI) refers to a family of video interfaces standardized by SMPTE. [cite book | title = Digital Video and HDTV | author = Charles A. Poynton | publisher = Morgan Kaufmann | year = 2003 | isbn = 1558607927 | url = http://books.google.com/books?id … Wikipedia
YCbCr — CbCr redirects here. For other uses, see CBCR. A visualization of YCbCr color space The CbCr plane at constant luma Y =0.5 … Wikipedia
