This paper gives an overview of Part 1 of ISO/IEC 14496 (MPEG-4 Systems). It "rst presents the objectives of the MPEG-4 activity. In the MPEG-1 and MPEG-2 standards, `Systemsa referred only to overall architecture, multiplexing, and synchronization. In MPEG-4, in addition to these issues, the Systems part encompasses scene description, interactivity, content description, and programmability. Th...

Authoring MPEG-4 content is quite a challenge. Far from the past one-video-plus-one-audio-streams of its predecessors MPEG-1 and MPEG-2, MPEG-4 allows the content creator to compose together spatially and temporally large numbers of objects of different types (rectangular or shaped video, still image, natural audio, synthesized audio, 2D graphics and 3D). From this context, MPEG-Pro, an MPEG-4 ...

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...

The MPEG-2 compressed digital video content is being used in a number of products including the DVDs, camcorders, digital TV, and HDTV. The ability to access this widely available MPEG-2 content on low-power end-user devices such as PDAs and mobile phones depends on effective techniques for transcoding the MPEG-2 content to a more appropriate, low bitrate, video format such as MPEG-4. In this p...

In this article, we aim to detect the double compression of MPEG-4, a universal video codec that is built into surveillance systems and shooting devices. Double accompanied by various types manipulation, its traces can be exploited determine whether forgery. To end, present neural network-based approach with discriminant features for capturing peculiar artifacts in discrete cosine transform (DC...