Discrete cosine transform
id:
discrete-cosine-transform-208-620936
title:
Discrete cosine transform
text:
A discrete cosine transform (DCT) expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different frequencies. The DCT, first proposed by Nasir Ahmed in 1972, is a widely used transformation technique in signal processing and data compression. It is used in most digital media, including digital images, digital video, digital audio, digital television, digital radio, and speech coding. DCTs are also important to numerous other applications in science and
brand slug:
wiki
category slug:
encyclopedia
description:
Technique used in signal processing and data compression
original url:
https://en.wikipedia.org/wiki/Discrete_cosine_transform
date created:
2002-04-25T16:34:38Z
date modified:
2024-09-11T04:56:17Z
main entity:
{"identifier":"Q2877","url":"https://www.wikidata.org/entity/Q2877"}
image:
fields total:
13
integrity:
15