Reports of the Technical Conference of the Institute of Image Electronics Engineers of Japan
Online ISSN : 2758-9218
Print ISSN : 0285-3957
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Reports of the 244th Technical Conference of the Institute of Image Electronics Engineers of Japan
Displaying 1-19 of 19 articles from this issue
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Date: March 11, 2009 Location: Musashi Institute of Technology
10:00-11:00 Chair: Hiroshi YOSHIKAWA, Nihon University
  • A Networked Surgical Simulator System for Blood Vessel Deformation
    Takashi ONAWA, Masashi NAKAGAWA, Nobuhiko MUKAI, Makoto KOSUGI
    Session ID: 08-06-01
    Published: 2009
    Released on J-STAGE: August 31, 2010
    DOIhttps://doi.org/10.11371/wiieej.08-06.0_1
    CONFERENCE PROCEEDINGS RESTRICTED ACCESS
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    In a surgical simulator for blood vessel deformation, we propose a deformation method that can make blood vessels longer and shrunk by calculating spring force, where the blood vessel is constructed with mass spring model. Also, some surgical simulators are connected with Client/Server model for corporative surgery and remote operation, and the server has the right of client control for joining and leaving. Finally, this function of the server could make clients join and leave at any time even during the execution of the surgery.
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  • A Wake Wave Generation Method by CG
    Ayaka SEO, Nobuhiko MUKAI, Makoto KOSUGI
    Session ID: 08-06-02
    Published: 2009
    Released on J-STAGE: August 31, 2010
    DOIhttps://doi.org/10.11371/wiieej.08-06.0_5
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    We have generated 3D wake wave by using computer graphics. Wake wave can be generated by adding several Kelvin waves that have different phases. The amplitude of the wave should be reduced due to water viscosity as time passes. For the simulation, we estimated the wavelength and the amplitude based on the image of a wake wave made by a waterfowl. Finally, we have confirmed that the proposed method can generate wake wave correctly by comparing the generated CG image and the photograph of a swimming waterfowl.
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  • An Input Method for VR Walk-Through by Using a Web Camera
    Hiroyuki KASAGAMI, Makoto KOSUGI, Nobuhiko MUKAI
    Session ID: 08-06-03
    Published: 2009
    Released on J-STAGE: August 31, 2010
    DOIhttps://doi.org/10.11371/wiieej.08-06.0_9
    CONFERENCE PROCEEDINGS RESTRICTED ACCESS
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    This paper describes an input operation method for VR walk-through by using a Web camera. An operator, who has markers on his/her knees, makes stepping motion at the same spot in front of a Web camera. The stepping motion is input to a PC through the web camera and the markers are tracked in real time so that the stepping speed is calculated. The operator can walk through in a virtual town generated by computer graphics according to the stepping speed. Finally, smooth and real-time walk-through operation has been achieved by using multi threads for recognition of the stepping motion and rendering of the virtual town.
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  • An Extraction Method of Roof Shapes from an Aerial Photograph
    Yoko ISHII, Makoto KOSUGI, Nobuhiko MUKAI
    Session ID: 08-06-04
    Published: 2009
    Released on J-STAGE: August 31, 2010
    DOIhttps://doi.org/10.11371/wiieej.08-06.0_13
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    This paper proposes a method to automatically extract building areas and to distinguish the roof shape of each building from a high resolution aerial photograph. First, all the straight lines are extracted from an aerial photograph by Hough transformation, and building areas are extracted by detecting straight lines parallel to the roads since the boundary of the building region is usually composed of straight lines, and is parallel to the road. Next, edges included in every building area are extracted with Sobel operaton. Moreover, the brightness difference among roof surfaces caused by the sunlight is examined. As a result, the extraction rate of building areas was only 58.6%. However, the distinction rate of the roof shape against every building area has reached 87.9% by the edge extraction.
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11:00-12:00 Chair: Nobuhiko MUKAI, Musashi Institute of Technology
  • Computer-Generated Disk Hologram which used complicated Object
    Naoya TOKUDA, Tomohiko FUJII, Takeshi YAMAGUCHI, Hiroshi YOSHIKAWA
    Session ID: 08-06-05
    Published: 2009
    Released on J-STAGE: August 31, 2010
    DOIhttps://doi.org/10.11371/wiieej.08-06.0_17
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    The computer-generated disk hologram is the flat hologram whose reconstructed image can be observed from 360 degrees. In our previous study, we have achieved the wide viewing angle with the modified fringe printer. However, the object was very simple. Therefore, we create the disk hologram with a complicate object which uses hidden-surface removal. As a result, we can confirm that the disk hologram is suitable for display.
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  • Animated Computer-Generated Cylindrical Rainbow Hologram
    Shinichi KIKUCHI, Tomohiko FUJII, Takeshi YAMAGUCHI, Hiroshi YOSHIKAWA
    Session ID: 08-06-06
    Published: 2009
    Released on J-STAGE: August 31, 2010
    DOIhttps://doi.org/10.11371/wiieej.08-06.0_21
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    In our previous study, we proposed an animated computer-generated cylindrical hologram as a new 3D display. This hologram is Fresnel type hologram. Also, this display show a three dimensional animation to all circumferences. However, since this hologram is Fresnel type hologram and a transmission type hologram, the reconstructed image is single color, and obtaining full-color object is difficult. Therefore, by using the rainbow hologram, we achieve an animated computer-generated cylindrical rainbow hologram(ACGCRH) which can be observed full color three dimensional animation.
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  • Take stereoscopic image shooting by moving one camera horizontally
    - Single-Lens Easy 3D Stereo Video Camera. one moving camera horizontally -
    Koichi TAKEUCHI
    Session ID: 08-06-07
    Published: 2009
    Released on J-STAGE: August 31, 2010
    DOIhttps://doi.org/10.11371/wiieej.08-06.0_25
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    Generally 3D cameras have a parallax distance 65mm. Our eyes and brain are tired by the emphasised three-dimensional images. My simple idea (in 1982, in Sony corp.) was using one Betamovie camera on the running train along the Rhein river.. We have promoted simple 3D home movie for the first stage of sony Handycam. We could get 3D view on the normal TV set, using one gray filter sunglass on one own eye. Every home video cameras are available to shoot 3D stereoscopic images shooting by moving camera method. The parallax is within 2 field running images Natural 3D images. Even if without 3D glasses, we have not double ghost right and left images but normal 2D. 2D-3D compatible. Easy operation as a home video camera.
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  • Production of Durer's Copperplate Engraving-Style Image
    Jing GENG, Hirokatsu SHIMIZU, Naokazu AOKI, Hiroyuki KOBAYASHI
    Session ID: 08-06-08
    Published: 2009
    Released on J-STAGE: August 31, 2010
    DOIhttps://doi.org/10.11371/wiieej.08-06.0_27
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    Engraving style image was made with the outline formed through high-pass filter and the tones obtained from some Durer's copperplate engravings. Our images consist of two components; contour and shading, and the production procedure is started with reduction of noise, contour formation, and application of the tone according to the density.
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  • Color selection of hologram image and color expression using swelling process
    Yuji TANAKA, Hiroyuki IKEDA, Satoko NISHIKAWA, Koki SATO
    Session ID: 08-06-09
    Published: 2009
    Released on J-STAGE: August 31, 2010
    DOIhttps://doi.org/10.11371/wiieej.08-06.0_31
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    Hologram image is so realistic that various images can be spread out in three-dimensional space even though it is illusion. The main subject of this paper is to shift color of the reconstructed image by pre-swelling emulsion processing in order to change the impression of the image or to make pseudo-color hologram.
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  • Micro cosmos
    - The unkonwn world you can't see unless using camera -
    Shuji KAWANO, Shigeo HIYAMA
    Session ID: 08-06-10
    Published: 2009
    Released on J-STAGE: August 31, 2010
    DOIhttps://doi.org/10.11371/wiieej.08-06.0_35
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    Do you know the movie "Power of Ten"? It starts from the picture of a picknicking family ,the focus of the camera gets far away,goes through sky, and reaches the cosmos.On the other hand,it enlarges the family and gets to the microscopic world.I think that,using a film having high resolving power,I can take such pictures as you want to observe from the whole to the detail as the movie is projected.
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13:10-14:10 Chair: Hiroshi YOSHIKAWA, Nihon University
  • «Invited Lecture» T2V Player
    - Creating Video Automatically from Text -
    Masaki HAYASHI
    Session ID: 08-06-11
    Published: 2009
    Released on J-STAGE: August 31, 2010
    DOIhttps://doi.org/10.11371/wiieej.08-06.0_37
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    We have been studying the next generation of video creation solution based on TVML (TV program Making Language) technology. TVML has a long history proposed back in 1996 by NHK, however, the only available Player has been the one made by NHK for years. We have developed a new TVML Player from scratch and named it T2V (Text-To-Vision) Player. Due to the development from scratch, the code is compact, light and fast, and extendable and portable. Moreover, the new T2V Player performs not only a playback of TVML script but also a Text-To-Vision conversion from input plane text to video by using FIL (Flexible Interpretation Loader) that can be added as a plug-in of the Player.
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14:25-15:10 Chair: Takanoeri NAGAE, Tokyo Polytechnic University
15:25-16:40 Chair: Hiroyuki KOBAYASHI, Chiba University
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