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Predecessor
26.12
Displaying 1-16 of 16 articles from this issue
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Article type: Cover
Pages Cover1-
Published: February 07, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (14K) -
Article type: Index
Pages Toc1-
Published: February 07, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (54K) -
Tomonobu YOSHINO, Toshiyuki YOSHIDAArticle type: Article
Session ID: NIM2002-80
Published: February 07, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSThis paper proposes a digital watermark technique based on region segmentation. The technique embeds information by uniformly varying the intensity of a region whose intensity variation is quite low, which realizes robustness against geometric transformations including scaling and rotation as well as DCT coding. The technique can be applied to an arbitrary-shaped video object because it confines the embedded information within local area. Several experimental results are given to demonstrate the usefulness of the proposed technique.View full abstractDownload PDF (804K) -
Yasuhiro INAZUMI, Toshiyuki YOSHIDAArticle type: Article
Session ID: NIM2002-81
Published: February 07, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSScalable video coding techniques proposed thus far are basically designed in such a way that the mean squared error between the original and coded frames is minimized. However, they are not optimal in terms of the perceptual video quality evaluated by Mean Opinion Score (MOS). This paper thus proposes a technique for scalable video coding which maximizes MOS in each layer by selecting the optimal framerate for a given bitrate. A simulation result given in this paper shows that the optimal coding parameters for each layer can be obtained by the proposed technique.View full abstractDownload PDF (495K) -
Tomohiko Takahashi, Shigeyuki Sakazawa, Masahiro Wada, Hideo YamamotoArticle type: Article
Session ID: NIM2002-82
Published: February 07, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSLayered video multicast can provide each receiving client with video streams of appropriate quality acceptable to his network bandwidth and available CPU resources. In this paper, we propose "Double Down technique" which reduce the influence of a lot of packet losses due to heavy congestion by choosing the optimum layer corresponding to the available network bandwidth. Furthermore, we propose a "Cooperative control" method for receiving several concurrent streams in layered video multicasting. This method is based on the priority of each stream and recipient's visual impression, and seems effective in some application such as remote lecturing and so on.View full abstractDownload PDF (790K) -
Kouichi Yahagi, Satoshi Miyaji, Masao Kasuga, Hideo YamamotoArticle type: Article
Session ID: NIM2002-83
Published: February 07, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSIn this paper, we propose a remote video monitoring system which has a partial area picture quality control, I.e. a sort of digital zooming function, to be applied in remote caring environment. In this system a target area of a monitored scene is chosen by the operation from a remote receiving side, and the target human body is estimated automatically by detecting its skin color and its movement. Then the selected area is encoded in higher resolution by "APC" algorithm and a receiving site can get a picture of the significant area in high quality. Some experimental results are also shown.View full abstractDownload PDF (1479K) -
Kazuyuki ISO, Takashi YAGI, Minoru KOBAYASHI, Satoshi ISHIBASHIArticle type: Article
Session ID: NIM2002-84
Published: February 07, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSIn order to realize rich communication, It is important that a system can be used in the everyday life as well as providing realistic sensations.We are working to realize the communication system that allows remote users to feel as though they are in the same place. In this paper, we discuss avatar control methods required for real world oriented cyber communication system. We propose two algorithms to share position information between users who are in the spaces that have different structure. In addition, we describe a system to verify avatar control method.View full abstractDownload PDF (893K) -
Masayuki IHARA, Minoru KOBAYASHI, Satoshi ISHIBASHIArticle type: Article
Session ID: NIM2002-85
Published: February 07, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSAuthors have aimed at wearable gesture recognition without attaching a lot of sensors and without limitation of movement areas. This paper describes a method to decide in practicable time what kind of markers should be used and where they should be attached. The proposed method is designed for small and inexpensive sensors and presents valuable candidates of sensor set which should be used. Authors had examined the possibility of the proposed method by the experimental verification of writing numerals, and discussed the future of wearable gesture recognition.View full abstractDownload PDF (810K) -
Mamoru ENDO, Takami YASUDA, Shigeki YOKOI, Yoshitsugu HAYASHIArticle type: Article
Session ID: NIM2002-86
Published: February 07, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWe have developed a method for applying 3D virtual humans in a computer generated virtual city, and for managing all objects which form an entire virtual space. In this paper we offer a way of combining natural human movements with virtual human characters, and we propose concrete methods for controlling various objects such as virtual humans, cars or buildings by using an index-based database system. For implementing our proposed method, we constructed web-based interfaces, which eive creators/users the possibility to construct/experience the contents. As an application case of our created system, we introduce a dramatization method of virtual humans in a near future city.View full abstractDownload PDF (953K) -
Yurie IRIBE, Takami YASUDAArticle type: Article
Session ID: NIM2002-87
Published: February 07, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSThe independence investigation study using the Internet not only acquires knowledge about the concept for the investigation, but it is possible to also acquire circumference knowledge and to learn a related information independently by this. However in the existing VOD system it will not be considered that circumference knowledge can be acquired and there is also no function to show combining a text, a picture, and video effectively. In this paper in order to make easy to learn not only the contents of a video but circumference knowledge, the keyword and the relative word suitable fbr the contents of a video were detected, and the interface for making those information easy to investigate was built.View full abstractDownload PDF (754K) -
Kumiko IWAZAKI, Takami YASUDA, Shigeki YOKOIArticle type: Article
Session ID: NIM2002-88
Published: February 07, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSIn resent years, people have attracted attention to practical use of museum resources for school education through the Internet all over the world. We have developed web-based system by using XML. The system helps us to use the digital museum resources effectively among museum, school, and research organization on network. The Museum Network, which we have defined, is a model to indicate how to deal with digital resources in our system what we call "Online Teaching Material" etc. efficiently. In our study, we have developed these systems for the purpose of the use at school: "Online Teaching Material", "School Trip Guidance", "Museum Search System", "Museum Resource Registration Form". In the system, once we register a museum resource by using "Museum Resource Registration Form", we can deal with the resource in every system of ours. Then we can use them in class or in the school trip effectively. Moreover, we can select the exact resource from database by using meta-data and connect different resources according to user's purpose or demand. Therefore, we expect strong collaboration between museum and school on the Web by using our system.View full abstractDownload PDF (765K) -
[in Japanese]Article type: Article
Session ID: NIM2002-89
Published: February 07, 2002
Released on J-STAGE: June 23, 2017
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Itaru Kaneko, Katsuhiko ShiraiArticle type: Article
Session ID: NIM2002-90
Published: February 07, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSBroadband services are rapidly growing in Japan. But it is questionable if the enough discussion was done on the service model of the ubiquitous multimedia. This paper will discuss on the vision of ubiquitous multimedia. ISO/IEC MPEG also recognizes importance of the use of multimedia in the network and is working hard on it's MPEG-21 standardization. We also mention our consideration of the goal of the MPEG-21.View full abstractDownload PDF (761K) -
Takahito IIDA, Yasuhiro NAKANISHIArticle type: Article
Session ID: NIM2002-91
Published: February 07, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSRecently, full-scale fusion of broadcast and communication is cried for. The prosperous stage for digital contents business is just being prepared. However, many obstacles may arise to the business in connection with right processing of the contents which are the big basis of contents circulation, permissions, and distribution. In such a situation, the many-sided examination about the technology about right permission, the law, and business of contents is starting completely in and outside. We will carry out introduction of those measures. It is the purpose of this paper to clarify the present condition and outline of contents right permissions management business from our position which tackles practical business several years before.View full abstractDownload PDF (548K) -
Article type: Appendix
Pages App1-
Published: February 07, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (73K) -
Article type: Appendix
Pages App2-
Published: February 07, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (73K)
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