MPEG-4 objektbasierte Videocodierung (MPEG-4 Object-Based Video Coding)

نویسنده

  • Thomas Sikora
چکیده

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 object-based functionalities. This article outlines the goals and technical details of the MPEG-4 object-based coding algorithm.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A New Unequal Error Protection Technique Based on the Mutual Information of the MPEG-4 Video Frames over Wireless Networks

The performance of video transmission over wireless channels is limited by the channel noise. Thus many error resilience tools have been incorporated into the MPEG-4 video compression method. In addition to these tools, the unequal error protection (UEP) technique has been proposed to protect the different parts in an MPEG-4 video packet with different channel coding rates based on the rate...

متن کامل

Natural and synthetic video in MPEG-4

The ISO MPEG committee, after successful completion of the MPEG-1 and the MPEG-2 standards, has recently completed the Committee Draft for MPEG-4, its third standard. MPEG-4 is designed to be an object-based standard for multimedia coding. The visual part of the standard specifies coding of both natural and synthetic video. The MPEG-4 visual standard supports coding of natural video not only in...

متن کامل

Sprite Coding in Object-based Video Coding Standard: MPEG-4

This paper outlines a new standard video compression technology: MPEG-4. We propose a very efficient coding scheme using the one of compression tools of MPEG-4 “Sprite coding”. We first introduce MPEG-4 visual “Profiles”, which are sets of tools (technical elements) that realize certain types of applications. Among these “Profiles”, “Main Profile” is capable of using “Sprites” i.e. a unified ba...

متن کامل

The MPEG-4 Video Standard Verification Model - Circuits and Systems for Video Technology, IEEE Transactions on

The MPEG-4 standardization phase has the mandate to develop algorithms for audio-visual coding allowing for interactivity, high compression, and/or universal accessibility and portability of audio and video content. In addition to the conventional “frame”-based functionalities of the MPEG-1 and MPEG-2 standards, the MPEG-4 video coding algorithm will also support access and manipulation of “obj...

متن کامل

MPEG-4 Toolkit Approach to support High Efficiency of Media Processing

The following defines a set of coding properties that are used as part of the media personalization solution. As indicated below, one of the advantages of this solution is that it is standard-based, as are the tools. The properties defined here are a combination of MPEG-4 (H.264 mostly) and MPEG-2. The combination provides a solution for both coding schemes. MPEG-4 is composed of a collection o...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • it - Information Technology

دوره 45  شماره 

صفحات  -

تاریخ انتشار 2003