The MPEG-7 Visual standard for content description - an overview
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paper_title: Digital video coding standards and their role in video communications

paper_content:

The efficient digital representation of image and video signals has been subject of considerable research over the past 20 years. With the growing availability of digital transmission links, progress in signal processing, VLSI technology and image compression research, visual communications has become more feasible than ever. Digital video coding technology has developed into a mature field and a diversity of products has been developed-targeted for a wide range of emerging applications, such as video on demand, digital TV/HDTV broadcasting, and multimedia image/video database services. With the increased commercial interest in video communications the need for international image and video coding standards arose. Standardization of video coding algorithms holds the promise of large markets for video communication equipment. Interoperability of implementations from different vendors enables the consumer to access video from a wider range of services and VLSI implementations of coding algorithms conforming to international standards can be manufactured at considerably reduced costs. The purpose of this paper is to provide an overview of today's image and video coding standards and their role in video communications. The different coding algorithms developed for each standard are reviewed and the commonalities between the standards are discussed. >
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paper_title: MPEG-7 Systems: overview

paper_content:

This paper gives an overview of Part 1 of ISO/IEC 15939 (MPEG-7 Systems). It first presents the objectives of the MPEG-7 Systems activity. In the MPEG-1 and MPEG-2 standards, "Systems" referred only to overall architecture, multiplexing, and synchronization. In MPEG-4, in addition to these issues, the Systems part encompasses interactive scene description, content description, and programmability, MPEG-7 brings new challenges to the Systems expertise, such as languages for description representation, binary representation of descriptions, and delivery of descriptions either separate or jointly with the audio-visual content. The paper then presents the description of the MPEG-7 Systems specification, starting from the general architecture up to the description of the individual MPEG-7 Systems tools. Finally, a conclusion describes the status of the standardization effort, as well as future extensions of the specification.
---
paper_title: Digital video coding standards and their role in video communications

paper_content:

The efficient digital representation of image and video signals has been subject of considerable research over the past 20 years. With the growing availability of digital transmission links, progress in signal processing, VLSI technology and image compression research, visual communications has become more feasible than ever. Digital video coding technology has developed into a mature field and a diversity of products has been developed-targeted for a wide range of emerging applications, such as video on demand, digital TV/HDTV broadcasting, and multimedia image/video database services. With the increased commercial interest in video communications the need for international image and video coding standards arose. Standardization of video coding algorithms holds the promise of large markets for video communication equipment. Interoperability of implementations from different vendors enables the consumer to access video from a wider range of services and VLSI implementations of coding algorithms conforming to international standards can be manufactured at considerably reduced costs. The purpose of this paper is to provide an overview of today's image and video coding standards and their role in video communications. The different coding algorithms developed for each standard are reviewed and the commonalities between the standards are discussed. >
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paper_title: MPEG-7 Visual Shape Descriptors

paper_content:

This paper describes techniques and tools for shape representation and matching, developed in the context of MPEG-7 standardization. The application domains for each descriptor are considered, and the contour-based shape descriptor is presented in some detail. Example applications are also shown.
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paper_title: MPEG-7 multimedia description schemes

paper_content:

MPEG-7 multimedia description schemes (MDSs) are metadata structures for describing and annotating audio-visual (AV) content. The description schemes (DSs) provide a standardized way of describing in XML the important concepts related to AV content description and content management in order to facilitate searching, indexing, filtering, and access. The DSs are defined using the MPEG-7 description definition language, which is based on the XML Schema language, and are instantiated as documents or streams. The resulting descriptions can be expressed in a textual form (i.e., human readable XML for editing, searching, filtering) or compressed binary form (i.e., for storage or transmission). In this paper, we provide an overview of the MPEG-7 MDSs and describe their targeted functionality and use in multimedia applications.
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paper_title: Overview of MPEG-7 audio

paper_content:

MPEG-7 is a new ISO standard that facilitates searching for media content much as current text-based search engines ease retrieval of HTML content. This paper gives an overview of the MPEG-7 audio standard, in terms of the applications it might support, its structure, the process by which it was developed, and its specific descriptors and description schemes.
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paper_title: MPEG-7 Systems: overview

paper_content:

This paper gives an overview of Part 1 of ISO/IEC 15939 (MPEG-7 Systems). It first presents the objectives of the MPEG-7 Systems activity. In the MPEG-1 and MPEG-2 standards, "Systems" referred only to overall architecture, multiplexing, and synchronization. In MPEG-4, in addition to these issues, the Systems part encompasses interactive scene description, content description, and programmability, MPEG-7 brings new challenges to the Systems expertise, such as languages for description representation, binary representation of descriptions, and delivery of descriptions either separate or jointly with the audio-visual content. The paper then presents the description of the MPEG-7 Systems specification, starting from the general architecture up to the description of the individual MPEG-7 Systems tools. Finally, a conclusion describes the status of the standardization effort, as well as future extensions of the specification.
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Title: The MPEG-7 Visual Standard for Content Description - An Overview
Section 1: Abstract
Description 1: Provide a summary of the paper including its aims, methodologies, and key points of MPEG-7 standard development.

Section 2: Introduction
Description 2: Discuss the increasing volume of image and video collections, challenges in accessing visual information, and the emergence of content-based image retrieval.

Section 3: Scope of MPEG-7 Visual Standard
Description 3: Explain the goal and objective of the MPEG-7 Visual Standard, the types of visual descriptors specified, and their application examples.

Section 4: Development of the Standard
Description 4: Describe the standard development framework, the process followed by MPEG for creating the standard, and detail the Experimentation Model and Core Experiments.

Section 5: Visual Descriptors for Images and Video
Description 5: Provide an overview of the various visual descriptors developed, including their classifications and applications.

Section 6: Visual Color Descriptors
Description 6: Detail the color descriptors, their applications, and how they are used in image and video retrieval.

Section 7: Visual Texture Descriptors
Description 7: Cover the texture descriptors, their properties, and their suitability for different applications.

Section 8: Visual Shape Descriptors
Description 8: Discuss the shape descriptors, both 2-D and 3-D, and their use in image and video applications.

Section 9: Motion Descriptors for Video
Description 9: Describe the descriptors for capturing motion in video sequences, including camera motion and object motion descriptors.

Section 10: Summary and Conclusion
Description 10: Summarize the content of the paper, the importance of MPEG-7 Visual descriptors, and their potential applications.