MPEG-4 Standardization Trend: Targeting Multimedia. MPEG-4 Visual Coding. Texture Coding.
نویسندگان
چکیده
منابع مشابه
MPEG-4 objektbasierte Videocodierung (MPEG-4 Object-Based Video Coding)
Zusammenfassung Neben einer hohen Kompressionseffizienz und einer guten Fehlerrobustheit stellt MPEG-4 Video als einziger internationaler Standard objektbasierte Funktionalitäten für Anwendungen zur Verfügung. In diesem Beitrag werden die Ziele und Techniken der MPEG-4 objektbasierten Kodierung beschrieben. Summary MPEG-4 is the first international standard that supports applications with objec...
متن کاملMPEG-4 natural audio coding
MPEG-4 audio represents a new kind of audio coding standard. Unlike its predecessors, MPEG-1 and MPEG-2 high-quality audio coding, and unlike the speech coding standards which have been completed by the ITU-T, it describes not a single or small set of highly e$cient compression schemes but a complete toolbox to do everything from low bit-rate speech coding to high-quality audio coding or music ...
متن کاملMPEG-4 Audio Lossless Coding
Lossless coding will become the latest extension of the MPEG-4 audio standard. The lossless audio codec of the Technical University of Berlin was chosen as reference model for MPEG-4 Audio Lossless Coding (ALS). The MPEG-4 ALS encoder is based on linear prediction, which enables high compression even with moderate complexity, while the corresponding decoder is straightforward. The paper describ...
متن کاملObject-based texture coding of moving video in MPEG-4
This paper describes some of the most promising segment-based coding techniques which have been investigated in the course of the MPEG-4 standardization process. Padding methods aim at extending arbitrarily shaped image segments to a regular block grid such that common hybrid block-based coding techniques can be applied. A simple and efficient padding technique employing low-pass extrapolation ...
متن کاملImproved MPEG-4 still texture image coding under noisy environment
This paper describes the performance of the MPEG-4 still texture image codec in coding noisy images. As will be shown, when using the MPEG-4 still texture image codec to compress a noisy image, increasing the compression rate does not necessarily imply reducing the peak-signal-to-noise ratio (PSNR) of the decoded image. An optimal operating point having the highest PSNR can be obtained within t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of the Institute of Image Information and Television Engineers
سال: 1997
ISSN: 1881-6908,1342-6907
DOI: 10.3169/itej.51.1979