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MPEG-4 Last modified: Wednesday, November 06, 2002
A graphics and video lossy compression algorithm standard that is based on MPEG-1 and MPEG-2 and Apple QuickTime technology. Wavelet-based MPEG-4 files are smaller than JPEG or QuickTime files, so they are designed to transmit video and images over a narrower bandwidth and can mix video with text, graphics and 2-D and 3-D animation layers. Wavelet technology can compress color images at rates of 20:1 up to 300:1 and grayscale images at 20:1 to 50:1. MPEG-4 was standardized in October 1998 in the ISO/IEC document 14496. Also see MPEG.
MPEG-4: The Short Story An explanation of the technology and some issues it raises. (2001) MPEG-4 Industry Forum Home page of the MPEG-4 Industry Forum, with information on the MPEG-4 standard and products and services, news, event information, and membership information.	Related Categories Data Compression Standards Related Terms codec data compression Divx MPEG wavelet wavelet compression