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 238th 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 14, 2008 Location: Tokyo Polytechnic University
10:05-11:50 Chair: Nobuhiko MUKAI, Musashi Institute of Technology
  • Animated Computer-Generated Cylindrical Hologram
    Yuuichi MAENO, Tomohiko FUJII, Takeshi YAMAGUCHI, Hiroshi YOSHIKAWA
    Session ID: 07-06-01
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_1
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    We realized the hologram which can be observed from 360 degrees by a computer-generated cylindrical hologram(CGCH). Since the hologram is the Fresnel type and has full parallax, it is an ideal display for a three-dimensional object. However, the thing which can be displayed is only dead object and it is not attractive for entertainment. Therefore, we have investigated an animated CGCH by changing object data according to the viewpoint, and obtained some experimental results.
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  • Multi-color Hologram form High Resolution CGH
    Tomohisa ITO, Tomohiko FUJII, Takeshi YAMAGUCHI, Hiroshi YOSHIKAWA
    Session ID: 07-06-02
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_5
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    It is becoming possible to calculate computer-generated holograms of three-dimensional objects that have more than one billion pixels, even with normal personal computers. In the previous report, we have fabricated holograms more than ten giga pixels with our fringe printer. Since the viewing area is becoming large, it is important to consider hidden-surface removal method to the Fresnel hologram. In this paper, we make high resolution CGH with hidden-surface removal. In addition, we have made the two elementary color (red and green) holograms as the master holograms to make the multicolor transfer hologram. In the result, we have obtained a good reconstructed image from high resolution multicolor hologram.
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  • The consideration of Computer-Generated holography for the real-time video display
    Masataka TOZUKA, Koki SATO
    Session ID: 07-06-03
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_9
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    Using a personal computer and Web-camera, the real-time display of Computer-Generated holography ( Kinoform / Lee type hologram ) created by simulation, patterns creation and optical image playback is considered.
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  • Improvement of holography system using smoke 3D screen
    Hongming ZHAO, Koki SATO, Kunihiko TAKANO, Lan TIAN
    Session ID: 07-06-04
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_13
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    We devised the space screen which sprayed a smoke particle on air space in a study of the animation holography that I used a DMD panel last year for namely the stereo image projective technique that reflected a hologram on solid screen. As a result, it was proved that I could observe a stereo image. However, a water particle had a short time when it continued functioning as screen after it was sprayed on air space, and density of screen was light.
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  • Single-Lens Micro-parallax Stereoscopic Camera (natural stereoscopic image)
    - Single-Lens 3D Stereo Video Camera: with Zoom and Macro shooting -
    Koichi TAKEUCHI
    Session ID: 07-06-05
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_17
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    Generally 3D cameras have a parallax distance 65mm. Also we are tired in our eyes and brains by over emphasized 3D movie images. My first idea (38 years ago in Sony corp.) was utilizing parallax within a single-lens aperture. I have completed a prototype camera recently. Single-lens Micro Parallax stereo movie camera can zoom and macro shooting, quite natural 3D images. Even if without stereo glasses, we have not double ghost right and left images but normal 2D. Operate easy as a home video camera.
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  • Human Motion Synthesis for CG-guided Assembly Instruction
    Tetsuo ITO, Yoshihiro YASUMURO, Yoshitsugu MANABE, Kunihiro CHIHARA
    Session ID: 07-06-06
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_19
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    Cell production system is able to flexibly alter manufacturing plans for responding to diversification of customer needs, however, each worker is supposed to skillful to finish the products by him/herself. Instruction manuals should also be prepared as many as the product types increase. Though conventional printed manuals are still commonly used, large amount of paper is not friendly for the workers and printed contents hardly show 3D information. 3D computer graphics (CG) is capable of changing views and transparency of the contents and has intrinsic advantage of digital data which can be accessed easily on digital device displays. This research proposes a new method to produce human motion needed for assembly process with inverse kinematics so that the CG guided manual can be prepared easily.
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  • Load-balancing technology of multi-stream decoding for simultaneous browsing of video contents
    Kazuto OHARA, Shuichi WATANABE, Hiroyuki OKADA, Ikuo KESHI, Takao ONOY ...
    Session ID: 07-06-07
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_23
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    The multiple display function by a plurality of video thumbnails is useful as intuitive User Interface in the video access that users select video contents of their desire, because of it's possibility of making their potential needs for the video contents actualized. However, real-time generation of the video thumbnails corresponding to a lot of video contents needs huge amount of processing. In this research, we propose the method of decoding multiple streams that can decrease the amount of processing for decoding of multiple video streams and deal with a temporary increase of processing load. Especially, we investigate the load-balancing technology that make the amount of processing uniform by adjusting the processing load of decoding that changes time-wise, and verify the effect of the technology.
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13:30-14:30 Chair: Shigeo HIYAMA, Tama Art University
  • «Invited Lecture» Visual picture and image processing at the current image representation field
    Kazuto KAWAZOE
    Session ID: 07-06-08
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_27
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    Today's image has brought a rich information culture by the image data processing and the expression technology of the computer. On the other hand, eyes of the audience have been sophisticated and have the ability of the presence and the sense of incompatibility detection. It is a good opportunity to hear the voice of the image creator about the expression, and the sensibility for the idea of the conflict point in a difference of media and technical evolution. The special invitation speaker Mr. Kawazoe was born on 1959. After graduation from Waseda University, he joined the special effects atelier Animation Staff Room for about 12 years, made good use of a variety of special effects technologies from the animation to miniature production, the development of the motion control camera, the special art design, and the computer graphics, and involving in production of a lot of images mainly TVCM. After his establishment of “SPACY corp.” . In 1995, he has supervised VFX of movies such as “Spy Sorge” , “The Sea Watches”, “Owl's Castle”, and “Pride ‘Moment of the fate’ ” , and expanded his interest to the music promotion, the game development, the WEB contents production, and the event etc. Recently, he owns “SPACY Products Ltd.” and very active as a pioneer of the CG industry.
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14:50-16:20 Chair: Hiroshi YOSHIKAWA, Nihon University
  • Making of Facial Animation Movies Considering Structure of Muscles on Facial Model
    Takashi MASUDA, Tokiichiro TAKAHASHI, Satoko MOROI
    Session ID: 07-06-09
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_29
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    We already created some simple movies of facial animation based on FACS: Facial Action Coding System with 3DCG. On the FACS, the detailed human facial expressions can be controlled individually as combination of minimum units of facial expression movement: Action Unit. However, in our conventional research, it was difficult to express the wrinkles of the cheeks which are important to express facial expression. This is because we had not considered structure of muscles on facial model. We created a face model in this paper again when considering of the structure of muscles on facial model. And we created facial animation movies which expressed the wrinkles of the cheeks on the anger or laughter expressions.
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  • Edo, Tokyo Landscapes Walk Through Based on Map Data
    Akio SAKUMA, Dai KATSUMURA, Tomohiro TANIMURA, Hiroyuki TAGUCHI, Tomoa ...
    Session ID: 07-06-10
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_33
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    It has passed 400 years from when Edo began, so there are almost only ferroconcrete buildings stands in a row in Tokyo. We can imagine a part of life of Edo from literatures and historical maps, but it is hard to know historical city Edo from urban city. So, we create virtual historical and urban city which can compare each other by using Computer Graphics. Our goal is to create digital archive contents for elementary and junior high education and tourist visiting Tokyo. In this paper, we describe some techniques for restoration and restorated landscape walk through.
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  • Construction of suitable rig for the character in MAYA
    Kenta YAMAGAMI, Satoko MOROI, Tokiichiro TAKAHASHI
    Session ID: 07-06-11
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_37
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    A lot of problems occur when rigging for character animation. The constructed rig is different according to bodily features of the character model or necessary motion. It is necessary to examine suitable rig for the character. However, because the information is not enough to solve the problems that occur when rigging, it is a very difficult process for beginner. We propose the rigging techniques for some problems occur when rigging.
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  • A Real-time Water Surface Rendering Method at the Downstream of a River
    Yasuhiro KATO, Nobuhiko MUKAI, Makoto KOSUGI
    Session ID: 07-06-12
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_41
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    We propose a real-time water surface rendering method at the downstream of a river for landscape simulation. The proposed method divides the river wave model according to the distance from the viewpoint. In a short distance, we adopted Stokes wave as the wave model in order to express the wave in detail, and express the direction change of the wave by considering the reflection at the riverbank. On the other hand, in a medium and long distance, we attempted speed-up by using cosine wave as a simple model of the wave, and by quasi expression with bump mapping method. Also, wind effect is considered for all kinds of distance since it can be seen even in a long distance. As the result of our experiments, we have confirmed that a river can be rendered in real time for the river model composed of about 42,000 polygons.
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  • A Fast Refraction Method of an Object Floating on the Water
    Kengo KATO, Nobuhiko MUKAI, Makoto KOSUGI
    Session ID: 07-06-13
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_45
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    There are two major refraction methods of an object that is in the water: ray tracing and refraction mapping. Ray tracing method can represent precise refraction, but needs heavy calculation time. On the other hand, refraction mapping method is faster than ray tracing because it prepares images of the surrounding environment and maps the images on CG models considering refraction of light, however, real-time refraction is difficult for the case of dynamic change. Therefore, we propose a fast refraction method of an object floating on the water by performing refraction calculation, which is based on snell's law, only for vertices constructing the object and by interpolating between these vertices.
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  • A Study of the Roles of Sound Effects in Video Expression
    Sakae NAKATA
    Session ID: 07-06-14
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_49
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    The purpose of this study is to consider qualitatively the roles of background music and sound effects in video expression, by evaluating video works created by college students as an assignment. First, the works that received the highest evaluation were those with sounds that suitably matched the video images, so we examined the importance of sound effects in video expressions. A qualitative analysis of video scenes that greatly moved the audience revealed two key factors, namely, clarity of the story development of the scenario and proper timing of music/sound effects. The message conveyed by camera work is related to the flow of video images. To give a clear message through the video images, therefore, the visual expressions should clearly present the messages and be accompanied by suitable music/sound effects. It was also suggested that the effective combination of images and sounds can enable the video work to move the audience. In the future, we plan to examine in further detail combinations of sound effects and camera work, i.e., what images should be taken with what kind of camera angle, as well as the importance of timing.
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16:30-17:45 Chair: Takanoeri NAGAE, Tokyo Polytechnic University
  • Come on ! JAPAN
    - Stereoscopic vision by the ground plan -
    Azumi KURITA
    Session ID: 07-06-15
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_53
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    I made a planar object a three-dimensional cartoon film. I give a planar family crests (KAMON) and pattern without the thickness depth information and become the placement such as the setting scene of the stage. Because individual object own does not have depth, a flat picture in the picture book just starts falling out and pictures floats and seems to drift. I become the work which imaged the picture scroll which works because parallel moves KAMON and Japanese old pattern. The reason that chose KAMON and a pattern to an object is because I want you to realize Japanese original beauty and design-related height again.
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  • mechanization
    - Create things -
    Kazufumi GOTO, Yuki ASAKURA
    Session ID: 07-06-16
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_55
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    This work is the 3DCG work which featured the theme of "an impression to create things" and "danger". One small gear takes in the thing of the circumference and becomes one big machine. The earth mechanizes the machine becoming big before long without an end. I am impressed by where and remember where I felt danger and want you to talk with the person of the circumference.
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  • Teru Bozu
    - A dolls for fine weather -
    Asaka SASAKI
    Session ID: 07-06-17
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_59
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    When it rain, Japanese people would make sunshine dolls from old.Their owner's wish was that rainy cloud has left away and it become sunny.Sunshine dolls strive to drive away the rainy cloud. And, finally their concentrated power cmplete the aim.Next morning, sunshine dolls' owner will sacred sake in the sky.
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  • Angel
    - The world where it is contained in the still picture and animation -
    Mitsuhiro ONO, Shigeo HIYAMA
    Session ID: 07-06-18
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_61
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    In hot spring town of the home where it has become the ruins is copied to the medium format photograph and life is inspired again in the dynamic picture image. While the image which is superposed to the printing paper changing configuration with the camera and the scanner it takes in. And it overwrapped with personal computer editing. While the image transfiguring, image and the storage which keep going out are warped and keep going out "you remember", that say. The two processes have been similar. With the deformity of storage as an image the other person the attempt which is shared.
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  • Aboukyu
    - Thinking about the movie again -
    Shintaro SAKURAI, Minami TABATA, Tomonari WATANABE, Dai TAKAMIYA, Shig ...
    Session ID: 07-06-19
    Published: 2008
    Released on J-STAGE: December 18, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-06.0_65
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    It surely has the reality and the difference though the memory is accumulation of the actuality. This indistinct difference is a key to comprehend essence of the movie, and it becomes a clue that interprets human. I cherished consistent atmosphere of the movie at "Aboukyu" in order to not break the obscure and delicate difference. So as not to destroy the tone of the movie, I considered the expression by “ Optical effects ” and “ 3-DCG ”.
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