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Displaying 1-13 of 13 articles from this issue
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Article type: Cover
Pages Cover1-
Published: July 25, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (13K) -
Article type: Index
Pages Toc1-
Published: July 25, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (40K) -
Kyoko Nagatomo, Masahiro Okuda, Masaaki Ikehara, Shin-ichi TakahashiArticle type: Article
Session ID: AIT2002-114
Published: July 25, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDue to the rapid development of computer and information technology, 3D modeling and rendering capabilities are becoming increasingly important in many applications, including industrial design, architecture, CAD/CAM, video games, and medical imaging. Since 3D mesh models often have the huge amount of the data, it is time-consuming to retrieve from a storage device or to download from the network. There exist some works on 3D model coding [l]-[7]. Most 3D viewing applications need to obtain the entire file of a 3D model in order to display the model, even when the user is interested only in a low-resolution version of the model. Therefore, progressive coding that enables multiresolution transmission of 3D models is desired. In this paper, we propose the progressive coding scheme of 3D meshes with texture, in which we convert irregular meshes to semi-regular using texture coordinates, map them on planes, and apply 2D image coding algorithm to mesh compression. As our method uses the wavelet transform, the encoded bitstream has a progressive nature. We gain high compression rate with the same visual quality as original models.View full abstractDownload PDF (632K) -
Kunihiko TAKANO, Kazuki OBANA, Kazuyo Wada, Takeshi TANAKA, Tomoki KUB ...Article type: Article
Session ID: AIT2002-115
Published: July 25, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSElectro holography is the technique that holographic image is indicated as 3D color animation by spatial light modulators. But, former method was much complicated because of using 3-LCDs. On the other hand, using DMD panel, time-sharing-displaying become possible. It means optical setup become more easier. Because, response-speed of DMD panel is faster than the speed of LCD panel. In this paper, we will examine about color-electro-holography by single DMD panel, and color-3D-animated-images were able to float in the space by 3D -Screen(Dispersion by stream).View full abstractDownload PDF (1098K) -
Yue Bao, Shinya HattoriArticle type: Article
Session ID: AIT2002-116
Published: July 25, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWe suggest a new stereoscopic display system to provide wide viewing area. To enlarge viewing area, the backlight panel is put slanting. It gives freedom of the distance between the lens and lights on the backlight panel. Because of observer-tracking program detects observer's iris, recognizes observer's position by the distance between the eyes of the observer and emits light for position corresponding to observer's eyes, viewing area are also extended. Since lights on the backlight panel focus at the viewing points vertically, a diffusion filter is used to spread light vertically. So a few observers can view stereoscopic images even if they are in different distances at the same time.View full abstractDownload PDF (684K) -
Yue BAO, Keiji YOSHIKAIArticle type: Article
Session ID: AIT2002-117
Published: July 25, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWhen using the page turning machine, the enough space to establish must be secured. It is difficult for serious handicapped persons to use it. We attempt to solve the problem by taking the image of the book on the page turning machine with a CCD camera and displaying it on a display. However, the distortion of the page is contained in the image. This paper proposes a method of correcting a distortion based on the shape of the upper end part and the bottom tip part of the page of book. By the experimenting results, we confirmed that it is possible to do appropriate correction when containing distortion even like a twist.View full abstractDownload PDF (626K) -
Keisuke NAKASHIMA, Shin'ichi SHINODA, Kenji SUGIYAMAArticle type: Article
Session ID: AIT2002-118
Published: July 25, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSBlinkscan is a new concept high-speed and high-resolution non-contacting color scanner. Blinkscan scans documents placed "face up" on its scan stage. So, you don't have to set the manuscript up side down on the transparency glass as for a flatbed scanner. If you want to capture many color forms, various size sheets, photographs and newspaper articles, the high-speed scanner Blinkscan is the ideal device.View full abstractDownload PDF (727K) -
Masaki YASUKAWA, Takatoshi WATANABE, Mikio TAKAGIArticle type: Article
Session ID: AIT2002-119
Published: July 25, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSOn telemedicine system using CRT color monitor, an algorithm for correctly reproducing the colors of photographic subjects in static images which are distorted by various systems is described. In this technique, the systems such as the illuminant on the observation side, the input characteristics of a camera and transmission factors are assumed to a black box. The photographic subject and the known color chart are observed in the same frame, the color characteristics of the black box is estimated in L^*a^*b^* color space, and the observed static image is corrected using the characteristics. As a result, it was confirmed that proposed method could correctly reproduce the colors on various illuminants.View full abstractDownload PDF (541K) -
Kotaro SATO, Takashi MASUYAMA, Yuuichi HIRAIWA, Midori FUKUSHIMA, Kazu ...Article type: Article
Session ID: AIT2002-120
Published: July 25, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSReduction in hardware prices and improvement of computational abilities have recently been able to provide new amusement machines based on image recognition technologies. We introduce some prototypes of game machines in Namco and their techniques as recognition algorithms for patterns on cards, outline shapes, textures, momentary motions and continuous motions.View full abstractDownload PDF (828K) -
Takanori Yokoyama, Toshinori Watanabe, Ken SugawaraArticle type: Article
Session ID: AIT2002-121
Published: July 25, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWe propose a new feature extraction using PIFS codes. This scheme uses correlation of PIFS codes and avoids decompression process. Derived image feature is able to represent the structural similarity between images. We demonstrated the itility of our proposal experimentally.View full abstractDownload PDF (644K) -
Yue Bao, Yasuhiro OdaArticle type: Article
Session ID: AIT2002-122
Published: July 25, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSIn this pepper, we propose a viewpoint position measurement system which uses one camera and two mirrors for stereoscopic displays. The two mirrors divide one view area of the camera into two to cover the same observation area from the upper and lower direction respectively. So this system work as a vertical stereo measurement system with particular characteristics that the system can solve the synchronous problem of the stereo measurement and cover the 3/4 of the an optic angle of the conventional stereo measurement system with two cameras.View full abstractDownload PDF (563K) -
Article type: Appendix
Pages App1-
Published: July 25, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (72K) -
Article type: Appendix
Pages App2-
Published: July 25, 2002
Released on J-STAGE: June 23, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (72K)
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