-
[show abstract]
[hide abstract]
ABSTRACT: Richmedia is a recent term used to identify a media beyond conventional multimedia. The term multimedia is used to identify
a media as a temporarily synchronized combination of more than one media elements such as audio, video, text. Richmedia extends
the scope and the capability of multimedia by introducing graphics as an additional element. Richmedia also adds new features
such as spatial composition of elements and interaction among the elements of the media and the user. Therefore, Richmedia
is defined as a combination of more than one media components such as audio, video, text and graphics with the support of
spatio-temporal composition of components and the interactivity among the components and the user.
10/2011: pages 177-202;
-
[show abstract]
[hide abstract]
ABSTRACT: There have been lots of technical developments in broadcasting field since 1990s. Providing high quality video and audio is one improvement and supporting mobile reception in a high-speed vehicle is another. Terrestrial Digital Multimedia Broadcasting (T-DMB) is one of the successfully deployed technologies to provide mobile broadcasting service. One of the major breakthroughs achieved by T-DMB in addition to robust vehicular reception is a system architecture naturally enabling integrated interactive data services, which is defined by MPEG-4 System architecture composed of Object Descriptor Framework and Binary Format for Scene (BiFS) technology. However, interactive service in T-DMB has two fundamental limitations. First, interactive data service should be always rendered on top of a video due to the T-DMB specification. Second, initial data for interactive service is only received by broadcasting channel. These limitations prevent the implementation of emerging data service recently deployed widely by the smart handheld devices such as personalized data service customized for the user characteristics or location-based data service. Therefore, this paper proposes the architecture of hybrid interactive data service (HIDS) for T-DMB to overcome these limitations by defining a hybrid BIFS, which supports individual scene descriptions delivered from broadcasting and mobile channels, and is accessed from the local memory. This proposed architecture also maintains backward compatibility with the already deployed legacy T-DMB receivers.
IEEE Transactions on Consumer Electronics 12/2010; · 0.94 Impact Factor
-
IEICE Transactions. 01/2007; 90-B:431-434.
-
[show abstract]
[hide abstract]
ABSTRACT: This paper describes issues and consideration on authoring of multi-view visual content based on MPEG-4 systems. The issues include types of 3D visual content; functionalities for user-interaction; 3D scene composition for rendering; and the 3D visual content file format. MPEG-4 includes several extensions compared to MPEG-1 and -2 especially in terms of object-based interactivity. In addition to advanced A/V compression methods (MPEG-4 Part2, Part3 and Part10), MPEG-4 Part1, which is named "Systems", contains additional tools such as binary/textual file format, multiplexing, synchronization scheme, scene description, etc. The use of MPEG-4 can resolve the problem of format diversity while providing high interactivity to users
Advanced Communication Technology, 2006. ICACT 2006. The 8th International Conference; 03/2006
-
[show abstract]
[hide abstract]
ABSTRACT: This paper introduces an interactive contents authoring system which can easily and conveniently produce interactive contents for the terrestrial digital multimedia broadcasting (T-DMB). The introduced authoring system provides powerful graphical user interface and produces interactive broadcasting contents in the forms of binary and textual format
Advanced Communication Technology, 2006. ICACT 2006. The 8th International Conference; 03/2006
-
[show abstract]
[hide abstract]
ABSTRACT: The recent mobile multimedia services such as video download and flash like graphic interface are not enough to satisfy demands from end-users. LASeR is a standard to improve and make efficient rich-media applications and services on mobile devices. Using the standard, the advanced services can be provided, such as mobile TV service, Web-like navigation service, interactive location-based services, and so on. In this standard, a method for simple aggregation format (SAF) are provided, which is a streaming-ready format for packaging scenes and media together and streaming them onto such protocols as HTTP, TCP, MPEG-2, and so on. In this paper, we introduce LASeR and give a detailed technical overview of SAF. Also, we will show how different between MPEG-4 systems and LASeR
IEEE Transactions on Consumer Electronics 03/2006; · 0.94 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Recently, MPEG opens activity to standardize scene representation for lightweight application on mobile phone. The standard is named as LASeR, which is to improving and making efficient rich media application and services on mobile device. In this standard, a method for simple aggregation format (SAF) are provided, which is a streaming-ready format for packaging scenes and media together and streaming them onto such protocols as HTTP, TCP, MPEG-2, and so on. In this paper, we introduce SAF and show how different between a similar standard, MPEG-4 systems, and LASER.
Consumer Electronics, 2006. ICCE '06. 2006 Digest of Technical Papers. International Conference on; 02/2006
-
[show abstract]
[hide abstract]
ABSTRACT: This paper presents the design of MPEG-4 contents streaming system that provides object-based interactivity over IP networks, and shows the execution results of the proposed streaming system. The proposed streaming system deploys overlay network to support application-level multicast.
Consumer Electronics, 2006. ICCE '06. 2006 Digest of Technical Papers. International Conference on; 02/2006
-
[show abstract]
[hide abstract]
ABSTRACT: In this paper, we propose the MPEG-7 over MPEG-4 systems decoder, which is compatible with MPEG-4 systems specification and added MPEG-7 module, which uses OCI and MPEG-7 textual descriptor for content search, and it is provides content management and metadata information.
Consumer Electronics, 2006. ICCE '06. 2006 Digest of Technical Papers. International Conference on; 02/2006
-
Proceedings of the 2006 IEEE International Conference on Multimedia and Expo, ICME 2006, July 9-12 2006, Toronto, Ontario, Canada; 01/2006
-
[show abstract]
[hide abstract]
ABSTRACT: The digital multimedia broadcasting (DMB) adopted the MPEG-4 standard as the AV standard. And the development of DMB and MPEG-4 led to the necessity of the various contents. In MPEG-4, two types of file format such as MPEG-4 file format (MP4) and extensible MPEG-4 textual format (XMT) which are the format to express the contents are defined for the composition of objects. Each format has its advantages and disadvantages. To supplement these pros and cons, the conversion from one to the other format is used. Converting from one to the other is the essential element for efficient authoring, streaming and management of multimedia contents based on MPEG-4. Therefore, implementing a converter is the one of the most important things to handle the contents efficiently. In this paper, the design and implementation of XMT-A to/from MP4 converter which supports the AVC file format are presented for interactive DMB services.
Advanced Communication Technology, 2005, ICACT 2005. The 7th International Conference on; 03/2005
-
Proceedings of the 13th ACM International Conference on Multimedia, Singapore, November 6-11, 2005; 01/2005
-
[show abstract]
[hide abstract]
ABSTRACT: In recent years, we have seen a vast increase in interactive broadcasting content research based on MPEG-4 and multimedia content description research based on the MPEG-7 standard. Also, there is a rising research area to compromise between the MPEG-4 and the MPEG-7 standard for a new application domain such as the interactive broadcasting server, and so on. Especially, MPEG-4 and MPEG-7 based interactive content allows a user to watch preferred broadcasting programs by using retrieval functionalities. In this paper, we present the first results of the MPEG-7 over MPEG-4 research and introduce the prototype of an interactive broadcasting contents authoring and searching system using the MPEG-7 over MPEG-4 scheme
Multimedia and Expo, 2004. ICME '04. 2004 IEEE International Conference on; 07/2004
-
Advanced Communication Technology, 2004. The 6th International Conference on; 02/2004
-
Advanced Communication Technology, 2004. The 6th International Conference on; 02/2004
-
[show abstract]
[hide abstract]
ABSTRACT: In this paper, the extended BIFS (Binary Format for Scene) of MPEG (Moving Picture Experts Group)-4 is proposed for augmented stereoscopic video. BIFS is a scene graph for MPEG-4, and is based on VRML (Virtual Reality Markup Language). ASV (augmented stereoscopic video) is thought as an off-line AR (augmented reality). Thus, there are some mismatch problems when augmented stereoscopic video presents in BIFS. In AR, the registration is a key technology. BIFS does not support that. We introduce a registration mechanism to BIFS. Also, in this paper new nodes are proposed for stereoscopic and camera information stream.
Consumer Electronics, 2003. ICCE. 2003 IEEE International Conference on; 07/2003
-
[show abstract]
[hide abstract]
ABSTRACT: Lately, there has been a vast increase in interactive broadcasting contents research using the MPEG-4 standard and in multimedia content description research using the MPEG-7 standard. Also, there are few researches into a compromise between the MPEG-4 standard and the MPEG-7 standard for newer applications, such as an interactive broadcasting contents server, which is able to query and search. The paper presents the first results of research on the MPEG-7 interface over MPEG-4 systems, which makes it easy to search MPEG-4 content. We have developed an MPEG-7 interface embedded in MPEG-4 systems and an MPEG-4 player that provides a query function and a search function.
Consumer Electronics, 2003. ICCE. 2003 IEEE International Conference on; 07/2003
-
Proceedings of the Eleventh ACM International Conference on Multimedia, Berkeley, CA, USA, November 2-8, 2003; 01/2003
-
[show abstract]
[hide abstract]
ABSTRACT: We propose a way to find corresponding points of a stereoscopic image by applying an algorithm of a generalized symmetry transform. A stereoscopic image entails the acquisition of a left image and right image simultaneously. Firstly, by using corner detection for the edge of both left and right images, feature points are analyzed, a square domain on the center of each feature point is found, and symmetry magnitude is such that edges within this domain have cumulated to positions of a feature point. Points are selected below the threshold value to correspond by executing a comparison of symmetry magnitude between edges of the right image and results of the left image. A more subdivided comparison of these corresponds in reserve through symmetry magnitude comparison of the radius unit within the domain, and if point correspondence could not be obtained in this way, corresponding points can be analyzed by measuring color correspondence rate of corresponding points in reserve. As for calculating correspond points, the proposed algorithm is more accurate than execution with feature points.
Digital and Computational Video, 2002. DCV 2002. Proceedings. Third International Workshop on; 12/2002
-
[show abstract]
[hide abstract]
ABSTRACT: We propose the extended MPEG-4 for augmented stereoscopic video. Augmented stereoscopic video is a stereoscopic synthetic video. Natural stereoscopic video and virtual CG object are synthesized. MPEG-4 has a scene graph, BIFS. BIFS is based on VRML. Augmented stereoscopic video is thought of as an off-line AR. Thus, there are some mismatch problems when augmented stereoscopic video is presented in MPEG-4. VR is based on the virtual environment. AR is based on real environment. A user can move view-position in VR. It's not possible in AR. In AR, the registration is a key technology. MPEG-4 does not support that. We introduce registration mechanism to MPEG-4. We also, propose new nodes for stereoscopic and camera information stream. Some nodes are needed for stereoscopic in MPEG-4, because MPEG-4 BIFS can't handle the stereoscopic scene. BackgroundSS and StereoTexture nodes are the new nodes for natural stereoscopic visual object and CameraViewpointSS and CameraInfoSS nodes are the new nodes for natural video camera information. Those are used for registration task in our MPEG-4 extension.
Digital and Computational Video, 2002. DCV 2002. Proceedings. Third International Workshop on; 12/2002
