ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
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25.32
Displaying 1-13 of 13 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    Pages Cover1-
    Published: April 27, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.32.0_Cover1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • [title in Japanese]
    Article type: Index
    Pages Toc1-
    Published: April 27, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.32.0_Toc1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • Discrimination of lung nodules using three dimensional structure of vessels
    Teruhisa Nawamaki, Naoyuki Ihata, Yoshito Mekada, Masao Kasuga
    Article type: Article
    Session ID: VIS2001-59
    Published: April 27, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.32.0_1
    CONFERENCE PROCEEDINGS FREE ACCESS
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    The recent progress of X-ray CT scanners made it possible to generate precise three dimensional(3D) images which present the details of inner structure of a human body. In the qualitative diagnosis of the pulmonary tumor, it is important to clarify the relation between the tumor and the circumference organization. First, bronchial tube and pulmonary artery, pulmonary vein are classified from anatomizing academic intelligence. Then, evaluation of the degree of vessel convergence to the nodule have done. The relation to the tumor has evaluated based on the structural information on the extracted organs.
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  • Collision Response with Plastic Deformations
    Mitsunori NARA, Masayuki NAKAJIMA
    Article type: Article
    Session ID: VIS2001-60
    Published: April 27, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.32.0_7
    CONFERENCE PROCEEDINGS FREE ACCESS
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    In this paper, we describe algorithms for creating physically based animation of deformable bodies. To save computational cost, deformations are limited to collision time and elastic deformations are ignored. We augment existing techniques for calculating collision response of rigid bodies to simulate a bouncing behavior of deformable bodies. Kinetic enargy of deformable bodies before collision is distributed to kinetic energy after collision and potential energy for plastic deformations. We use some parameters which regulate the distribution of kinetic energy to control collision response with plastic deformations.
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  • Virtual World Modeling for Software Robot using Neural Networks
    Piperakis Romanos, Suguru Saito, Hiroki Takahashi, Masayuki Nakajima
    Article type: Article
    Session ID: VIS2001-61
    Published: April 27, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.32.0_15
    CONFERENCE PROCEEDINGS FREE ACCESS
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    A software robot in the scope of this paper is regarded as an autonomous intelligent agent situated in a virtual reality environment. As such, it is of fundamental importance to be able to create an internal representation or model of its surroundings. This model must gather the relevant to the robot scene information in a compact representation, which will subsequently be used to accommodate the robot's functional requirements. The model is also required to be incremental, in order to be able to grow and adapt to environmental information as it becomes available, and it must allow for incomplete or fuzzy knowledge to describe parts of the scene that have not been available to the robot's sensors. We propose a neural network based model along with a training technique that succeeds inmeeting these requirements.
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  • Study on Depth Perception in Immersive Virtual Environments
    Youhei Konishi, Naoki Hashimoto, Masayuki Nakajima
    Article type: Article
    Session ID: VIS2001-62
    Published: April 27, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.32.0_21
    CONFERENCE PROCEEDINGS FREE ACCESS
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    In virtual environments realized with an immersive display system like a CAVE, the relationship between the screen and its users is dynamically changed. The depth perception depends on the distance between the user's viewpoint and the screen, therefore, serious depth perception errors occur. In this research, we measured the characteristics of depth perception errors in immersive virtual environments and showed special properties of the depth perception which were different from those of the real world. We also proposed some methods to correct thier errors with these measurement results. These methods enabled us to realize more accurate depth perception.
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  • Augmentative and Alternative Communication (AAC) for Individuals with Severe Language Disabilities : Topics from Recent AAC Practices and Research
    Tetsuya Kojima
    Article type: Article
    Session ID: VIS2001-63
    Published: April 27, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.32.0_27
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Augmentative and Alternative Communication (AAC) is recognized as an effective approach of language intervention for people with difficulties in acquisition or use of functional speech, which utilizes a variety of communicative options to augment or supplement speech and/or writing. In recent years, AAC has developed as an interdisciplinary or multidisciplinary field of clinical and research effort which provides individuals with severe communication disabilites with comprehensive support and services in terms of medical, welfare, and/or educational concerns. This lecture gives an overview of AAC and presents some recent topics from AAC practices and related research outcome.
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  • A Mouse Emulation Tool Using Head Movement for the Handicapped
    Koichiro KUBO, Yukiyasu IIDA, Satoshi SHIMADA, Sakuichi OHTSUKA
    Article type: Article
    Session ID: VIS2001-64
    Published: April 27, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.32.0_35
    CONFERENCE PROCEEDINGS FREE ACCESS
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    This paper proposes a computer manipulation tool for the handicapped who cannot use a mouse. This tool provides mouse control of computers to people who cannot use their hands but who have good head control. This tool translates the movement of a region of the user's eye into movements of the computer mouse pointer, so it allows the user to smoothly move the cursor across the screen simply by moving his/her head without any attachment. In addition, it detects blinks and uses them to issue some mouse function call such as clicking mouse buttons to any application software without requiring any recompilation. Experimental results show the effectiveness of this tool.
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  • Basic Considerations of Visual Communication for the Remote Sign Language Interpretation Services
    Nobuko KATO, Ichiro NAITO, Hiroshi MURAKAMI, Yasushi ISHIHARA, Hiroki ...
    Article type: Article
    Session ID: VIS2001-65
    Published: April 27, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.32.0_43
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Recently it has become possible for users in remote locations to communicate via sign language using video phones and video conferencing systems. In actually attempting visual communication for the hearing impaired, however, critical problems remain besides the issue of video quality, refresh rate. In this paper, we describe our experimental system for the remote sign language interpretation services and experimental results on conversation. Results from the questionnaire show that the sub window is effective for the remote sign language interpreting.
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  • Study on the Picture-Mail System for People with Hearing Disabilities
    Masashi Fukuda, Satoshi Abe, Yoshihito Abe, Kazuo Kamata, Hideo Yamamo ...
    Article type: Article
    Session ID: VIS2001-66
    Published: April 27, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.32.0_51
    CONFERENCE PROCEEDINGS FREE ACCESS
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    In this paper, an e-mail system is studied for a new telecommunication tool for deaf people, by which it is made possible to transmit video files of sign-language on the internet. Here we call such an e-mail system "picture mail". In this picture mail, use of redundancy reduction coding is essential for transmission of signed-language image. We implemented a prototype system using APC, which is one of the most advanced redundancy reduction coding methods of moving images. Subjective evaluation tests on performance of this prototype system were conducted and results show this picture mail seems very promising for a new telecommunication means for deaf people, although there are many technical issues left for further study to implement a practical and satisfactory picture mail system.
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  • A Web Based Training System for Signed language
    Satoshi Abe, Masashi Fukuda, Yoshihito Abe, Kazuo Kamata, Hideo Yamamo ...
    Article type: Article
    Session ID: VIS2001-67
    Published: April 27, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.32.0_57
    CONFERENCE PROCEEDINGS FREE ACCESS
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    By progress of video compression codings as well as video-streaming technologies over the Internet, a Web Based Training (WBT) system, using video stream transmission, has become feasible. In this paper, a model of signed language learning system has been actually built on the web, and its effectiveness of and the promising application fields are investigated. We conducted subjective evaluation tests on performances and effectiveness of this signed language learning WBT system at various transmission rates, corresponding to those of access circuits available at pressent. The results show that such a WBT approach will be very promising as a new tool for learners of signed language as well as a new communication network for deaf people.
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  • Environmental Study for the Use of Information Devices for People with Disabilities
    Kazuo Kamata, Hiroaki Kodama, Hisao Takauchi, Kenichi Katoh, Makoto Na ...
    Article type: Article
    Session ID: VIS2001-68
    Published: April 27, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.32.0_63
    CONFERENCE PROCEEDINGS FREE ACCESS
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    This paper addresses the use of Information and Communication Services (ICSs) for people with disabilities. Guidelines for information and communication devices on accessibility have been announced officially in Japan. Many people with disabilities use those devices with the assist of a carer. There also exists certain situation that a user can not find out an appropriate or a desired service in a group of ICSs, even if he/she can access a device. We introduce the concept of universal service that combines access to devices and utilization of ICSs, that is defferent from a usual one.
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  • [title in Japanese]
    Article type: Appendix
    Pages App1-
    Published: April 27, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.32.0_App1
    CONFERENCE PROCEEDINGS FREE ACCESS
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