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 249th Technical Conference of the Institute of Image Electronics Engineers of Japan
Displaying 1-27 of 27 articles from this issue
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Date: March 12, 2010 Location: Tokyo Denki University
9:30-10:30 Chair: Michio SHIRAISHI, Toho University
  • Simulation of Snow Sliding by Computer Graphics
    Tomohide GOTO, Nobuhiko MUKAI, Makoto KOSUGI
    Session ID: 09-05-01
    Published: 2010
    Released on J-STAGE: September 01, 2011
    DOIhttps://doi.org/10.11371/wiieej.09-05.0_1
    CONFERENCE PROCEEDINGS RESTRICTED ACCESS
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    The snow sliding on a roof is composed of five steps; starting of snow sliding, under snow sliding, shearing of a snow at a roof edge, snow falling from the roof, and its collision with ground. The motion of the snow at each step is simulated based on literatures which were reported about snow's behavior. As a result, a natural simulation of a snow sliding on a roof can be realized under many conditions such as snow quality, temperature and roof structure.
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  • An Expression Method of Viscoelastic Fluid by CG
    Kentaro ITO, Nobuhiko MUKAI, Makoto KOSUGI
    Session ID: 09-05-02
    Published: 2010
    Released on J-STAGE: September 01, 2011
    DOIhttps://doi.org/10.11371/wiieej.09-05.0_5
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    We propose an expression method of CG animation of spinnability, which is one of the characteristics of viscoelastic fluid. The method solves the basic equation of fluid and constitutive equations of solvent and viscoelastic fluid by using MPS method. In addition, surface tension is considered since spinnability is affected by air pressure under the condition that the fluid has free surface. Finally, CG polygons are generated from the particles, which positions are calculated by MPS method, by using marching cubes algorithm, and the behavior of spinnability is animated with three characteristics of thin extension, the thinnest center, and rubber shrink.
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  • A Rendering Method of Multiple Images Reflected on a Curved Glass
    Tomoaki HIRANO, Nobuhiko MUKAI, Makoto KOSUGI
    Session ID: 09-05-03
    Published: 2010
    Released on J-STAGE: September 01, 2011
    DOIhttps://doi.org/10.11371/wiieej.09-05.0_9
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    In recent years, landscape simulation with reflection on a transparent object is important for pre-evaluation of city planning or new buildings. Reflection rendering on a flat glass is comparatively easy, however, that on a curved glass is difficult. In addition, there are some cases where multiple images are reflected for one object. Therefore, in this paper, we propose a rendering method of reflection on a curved transparent object by calculating the positions of mirror reversed images from the eye position, CG model and the curvature of the curved transparent object, and by generating mirror-reverse models based on the solutions. Finally, we could simulate the reflection on a curved glass not only for just one reflected image but also for multiple images.
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  • ( English title is not available )
    Tomoya HASEGAWA, Kazuhiko HAMAMOTO
    Session ID: 09-05-04
    Published: 2010
    Released on J-STAGE: September 01, 2011
    DOIhttps://doi.org/10.11371/wiieej.09-05.0_13
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    This paper is written about acceleration of base NPR technique that called Particular Rendering using GPU and interesting expression using Parlin-noise and G-Buffer. And propose solution of particle density problem using GPU at NPR.
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10:40-11:25 Chair: Tokiichiro TAKAHASHI, Tokyo Denki University
11:35-12:00 Chair: Yuko MATSUMOTO, TV Tokyo Corp.
13:55-14:55 Chair: Mikio SHINYA, Toho University
15:05-16:25 Chair: Koichi TAKEUCHI, The University of Electro-Communications
  • LUTA
    Satoshi KAWAMOTO
    Session ID: 09-05-18
    Published: 2010
    Released on J-STAGE: September 01, 2011
    DOIhttps://doi.org/10.11371/wiieej.09-05.0_03
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  • O Pamela
    - About an analog, digital color -
    Tatsuhito FUKATSU
    Session ID: 09-05-19
    Published: 2010
    Released on J-STAGE: September 01, 2011
    DOIhttps://doi.org/10.11371/wiieej.09-05.0_53
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    Binocular vision image work of photograph taken from life and animation that makes carp motif.
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  • INTERCEPTORS
    Koichi TOYOZUMI, Nobuhiro NAKAMURA
    Session ID: 09-05-20
    Published: 2010
    Released on J-STAGE: September 01, 2011
    DOIhttps://doi.org/10.11371/wiieej.09-05.0_55
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    INTERCEPTORS is a digest film of INTERCEPTOR, which a video produced by the authors. The purpose of this digest film is to throw some questions to the following common senses on film production. (1) The subject of film should be conveyed to audience through its story. (2) It is difficult to produce a huge entertaining movie for students that have poor production environments. However, we think the film just plays a role conveying its subject and we can solve (2) using efficient information processing techniques. In this paper, by actually producing this film and the original film, we solve (2) and try to show an answer to (1) by conveying the solution of (2) to audience.
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  • Mind in box
    - In today, digital still-camera works contrived new film works and process on cinema -
    Masaki KITAHARA, Yo SHINTANI, Kaori SATO, Dai TAKAMIYA, Shigeo HIYAMA
    Session ID: 09-05-21
    Published: 2010
    Released on J-STAGE: September 01, 2011
    DOIhttps://doi.org/10.11371/wiieej.09-05.0_59
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    A relationships with family in common issue with which everyone face. In This film, through two families, We depict the story that each person try to take back the family ties, and also we try to express specific feeling with Digital Intermediate.
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16:35-17:35 Chair: Nobuhiko MUKAI, Tokyo City University
  • Comparison of Preferred Flesh Color between Japan and China
    Deng Pei, Fan Ying, Naokazu Aoki, Hiroyuki Kobayashi
    Session ID: 09-05-22
    Published: 2010
    Released on J-STAGE: September 01, 2011
    DOIhttps://doi.org/10.11371/wiieej.09-05.0_61
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    It has been reported that there is a significant difference in preferred flesh color between Japan and China. This paper is aiming to elucidate the reason of the difference and investigating impression of flesh color by semantic differential method in Japan and China. As the samples for evaluation, the average flesh color of those most preferred by both Japanese and Chinese, a reddish one accepted only by Chinese, and a brownish one accepted by both Japanese and Chinese were used. In the results obtained in China, almost all adjectives evaluated for the brownish, but Japanese preferred the average flesh color. Japanese had negative evaluation about the reddish flesh color.
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  • Large Screen Silhouette Puzzle with Projector and Camera
    Naomi OGURI, Takahiro KASHIMA, Shuhei KITAJIMA, Satoko MOROI, Katsuto ...
    Session ID: 09-05-23
    Published: 2010
    Released on J-STAGE: September 01, 2011
    DOIhttps://doi.org/10.11371/wiieej.09-05.0_65
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    We developed a silhouette puzzle game which can be enjoyed by many players. This game system consists of a set of magnet puzzle pieces and a screen or a wall to put, a projector to project answer silhouettes and a camera and PC which monitors the screen or wall to examine that the puzzle pieces are correctly arranged on the answer silhouette. When a correct arrangement is detected, some graphics or an animation special for each answer silhouette are displayed on the screen or the wall. Therefore, many players and even the audience can share the fun of the game.
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  • Depth of Field Control Method for Small Digital Still Camera
    Hidetoshi OKAZAKI
    Session ID: 09-05-24
    Published: 2010
    Released on J-STAGE: September 01, 2011
    DOIhttps://doi.org/10.11371/wiieej.09-05.0_67
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    By the photography, there is the expression technique to let a person of appreciation watch a main subject closely by shading off a background with a focus on a main subject such as people. However, depth of field is deep and cannot satisfy a demand for the photograph expression of the user to shade off the background of the subject because there is it for a one-severalth of the film camera at the size of the imaging element with almost digital cameras. Therefore, in this study, a method to correct the depth of field of images photographed by digital cameras in degree same as film cameras are suggested to by software.
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  • Identification of plants by using leaf shape feature
    Ami MORIMOTO, Nobuhiko MUKAI, Makoto KOSUGI
    Session ID: 09-05-25
    Published: 2010
    Released on J-STAGE: September 01, 2011
    DOIhttps://doi.org/10.11371/wiieej.09-05.0_69
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    An identification method of plants, which are usually seen in everywhere, is proposed by using Fourier descriptor. First, edge shape of each leaf is approximated by a series of short lines and is represented by P-type Fourier descriptor, then it is converted to Fourier series expansion. Lower parts of its coefficients are used for identification of plants. As a result, by using lower five coefficients, average identification rate 83.5% is obtained for 9 kinds of plants.
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17:45-18:30 Chair: Tsutomu HORIKOSHI, NTT DOCOMO, Inc.
  • An improvement of the quality of holographic 3D images utilizing time shared displaying technique
    Tomoyuki SEINO, Shigeyuki KOMURO, Syunsuke NAGAO, Kunihiko TAKANO, Kok ...
    Session ID: 09-05-26
    Published: 2010
    Released on J-STAGE: September 01, 2011
    DOIhttps://doi.org/10.11371/wiieej.09-05.0_73
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    Our aim is to produce a holographic 3D TV system adopted a portable terminal information processor of the small size, just like a cellar phone. In fact, as for a cellar phone, since only a small number of pixels are permitted for displaying, it seems to be valuable to study a holographic 3D reconstructing process adopted such devices in which small numbers of pixels are available. In this report, we studied reproducing process employed a technique which enables us to record the object with many points and to reconstruct it using time sharing methods, and we present here a technical process of the improving characteristics of the reconstructed images produced from the objects with complicated forms.
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  • The Consideration of Computer Generated Holo- graphic Stereogram in Kinoform Type Using Multiple Web-camera Input for the live-action
    Masataka TOZUKA, Kunihiko TAKANO, Makoto OHKI, Koki SATO
    Session ID: 09-05-27
    Published: 2010
    Released on J-STAGE: September 01, 2011
    DOIhttps://doi.org/10.11371/wiieej.09-05.0_77
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    The way of computing a Kinoform very at high speed by the calculation of the two dimensions fast Fourier transform of a great deal of data which becomes 262,144 of 512x512 with once in the object mark using the personal computer. The expression can do a reconstructed image in the neutral color and can make an interference fringe only with CPU at high speed if being a simple Kinoform. The reviewing which aimed to create the Computer Generated Holographic Stereogram (CGHS) which used a fast Fourier transform by multi- task processing of the Windows which used one personal computer by real 3D object taken with multiple Web camera by the Kinoform which can be used for the optical reconstruction which depends on the TN type LCD.
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  • Multiple speakers natural audio sounds : 3D Concert Sounds
    - Enjoy the natural reality playback of concert sounds -
    Yoji YABE, Takaaki YOSHIOKA, Koichi TAKEUCHI
    Session ID: 09-05-28
    Published: 2010
    Released on J-STAGE: September 01, 2011
    DOIhttps://doi.org/10.11371/wiieej.09-05.0_81
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    The sounds of musical instruments are multitrack recorded and it playback with the multi speakers. Then the sound equal to a live performance is provided. In this text, it proposes "Multi original sound performance method". This method has advantages that the effect of the playback environment is not received, a specific listening position is not exist, the intermodulation distortion by the amplifier and the speakers is not generated.
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