ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
25.12
Showing 1-14 articles out of 14 articles from the selected issue
  • Type: Cover
    Pages Cover1-
    Published: February 09, 2001
    Released: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • Type: Index
    Pages Toc1-
    Published: February 09, 2001
    Released: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • Kunihiko Takano, Koki Sato
    Type: Article
    Session ID: MIP2001-37/AIT2001-3
    Published: February 09, 2001
    Released: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    A new method for achieving 3D TV was developed and tested with very promising results. In this method, holography techniques utilizing a single white light source, instead of the traditional three color laser lights, and three liquid crystal display panels(LCD)were proposed. A metal halide lamp with good specifications in each wavelength of the color components was adopted as the light source. Each of the three color light components required for the reconstruction of an image was extracted by color separation using cold mirrors. The separated color images were then reconstructed by the hologram formed on the LCD panels which is then combined together through the use of a prism to form a single 3D image. Compared with usual reconstruction methods using three color lasers, this new approach using the single white light source seems to have better color clarity and the overall system cost is lower.
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  • Masaki HAYASHI, Mamoru DOUKE, Kyoko ARIYASU, Narichika HAMAGUCHI
    Type: Article
    Session ID: MIP2001-38/AIT2001-3
    Published: February 09, 2001
    Released: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    We have been researching and developing a mechanism for producing television programs automatically by computer since we proposed a specially designed language that was TVML(TV program Making Language)in 1996. TVML is a language to describe full TV program and a TVML Player interprets a script witten using TVML and generates a TV program in realtime. This paper describes attempts to present information that individual sas in a TV program style using TVML. As one of the examples, we introduce automatic talk show generation from given dialogs. We also introduce a function of external control mode of the TVML Player that allows external applications to control the running TVML Player. Some examples using this function are shown.
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  • KyuengBo MIN, Masayuki Nakajima
    Type: Article
    Session ID: MIP2001-39/AIT2001-3
    Published: February 09, 2001
    Released: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    Human walking and posture are determined by joint movement which is controlled by muscle force. Muscle force working as the internal force is the most important factor which determine human movement and posture. In this paper, based on muscle-skeleton model and biomechanics, we propose useful joint control method which is suitable to apply muscle work to joint control. This method will help us to visualize the simulation of individual muscle function in human walking.
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  • Xiaohui ZHANG, Johji TAJIMA, Masayuki NAKAJIMA
    Type: Article
    Session ID: MIP2001-40/AIT2001-4
    Published: February 09, 2001
    Released: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    The Standard Object Color Spectra database for color reproduction evaluation(SOCS)is developed and introduced in this paper. SOCS is developed to evaluate the color-sensor quality of image-input devices properly. The total number of colors in SOCS is up to 49672, and divided into eight categories. Analyzing and managing such a huge database is difficult, and by only reading the boring data, features of SOCS database are hardly to be found. Therefore, we developed a visualization software called SOCS Viewer. Using it, failures or anomalies of color data or gamut data are much easier to detect and examine than using the text data files. The analytic results demonstrate its usefulness.
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  • Akira Utsumi, Howard Yang, Nobuji Tetsutani
    Type: Article
    Session ID: MIP2001-41/AIT2001-4
    Published: February 09, 2001
    Released: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    This paper addresses human motion tracking using a top-view approach. The top-view approach gives direct correspondences between positions in an image and positions on the ground. In addition, the variety of human body orientations is limited. Body rotations are estimated using appearance based matching. A large image database is created by capturing human images at different positions and orientations. A compact representation of the image database is made by compressing the images into an eigenspace. The projected positions of input images determine human body positions and orientations. Experimental results show the effectiveness of the proposed method.
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  • Ken'ichi Morooka, Hiroshi Nagahashi
    Type: Article
    Session ID: MIP2001-42/AIT2001-4
    Published: February 09, 2001
    Released: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    This paper reports the object surface recovery with triangulated patches from a range image. In this case, the recovery must consider its accuracy, reducing the number of the patch, and filling in the holes. One of the remedies for this situation is to generate the patches adaptively depending on the shape variance. However, since the previous adaptive mesh generations use the triangulated image plane, there is the problem that its accuracy depends on the initial triangulation of the plane. In order to solve this problem, this paper presents a new method for reconstructing 3-D object shapes. Our method introduces the active balloon model(ABM)to create the model of the whole surface. Paractically, after creating the rough shape by a new energy function, the shape is changing locally to preserve the geometric features of the object.
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  • Takaaki Iizuka, Shin-ichi Murakami
    Type: Article
    Session ID: MIP2001-43/AIT2001-4
    Published: February 09, 2001
    Released: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • Koichi Sakamoto, Hitoshi Urabe
    Type: Article
    Session ID: MIP2001-44/AIT2001-4
    Published: February 09, 2001
    Released: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    The new work items for ISO/TC130/WG2 include preparation of new standard images to cope with the future multi-media prevalence. The new standard images consist of an Lab-SCID set prepared by the Switzerland team and an XYZ/sRGB-SCID by the Japanese team. The paper describes the definition of XYZ/sRGB-SCID color space and the preparation of standard images. XYZ/sRGB-SCID has been developed particularly for the monitor display of natural and synthetic images. The color space defined by XYZ/sRGB-SCID has a high degree of consistency from image input to monitor output;such a desirable feature has been achieved by adopting the ITU-R BT.709-3 standard as the image capturing norm and sRGB as the monitor display norm. As the two standards are both based on D65 light source, the present standard pictures imply those in a D65 color space. The image data for a natural picture have been prepared by first shooting an original scene with a color reversal film, converting the recorded XYZ color coordinates back to those of the original scene, then applying image processings such as one making the image diplayed on an sRGB monitor subjectively favorable, color gamut compression taking into account the sRGB monitor gamut for reproducible colors, etc. XYZ/sRGB-SCID is described in terms of 16bit XYZ and 8bit RGB color data with a resolution of 4k x 3k. The present standard images, comprising stable and reliable high quality image data, are extensively useful for the evaluation of the color reproducing capability of imaging systems, the evaluation of color image output devices, coding techniques associated with the storage and transmission of high resolution image data, etc.
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  • Shinjiro Kawato, Nobuji Tetsutani
    Type: Article
    Session ID: MIP2001-45/AIT2001-4
    Published: February 09, 2001
    Released: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    Face detection and eye tracking in real-time are the first steps for head gesture recognition and/or face expression recognition. We propose a new filter (Circle-Frequency Filter) to detect and track a face feature point (the point between the eyes). It is rotation invariant and fairly robust to a pretty wide range of face orientation. The calculation is simple. Therefore, combining a technique of skin-color region extraction, we can detect and track the face feature point in a video stream in real-time. We implement the system on a SGl O2 workstation. The video image size is 320x240 pixels. The system processes images at seven frames per second in the detection mode, and 13 frames per second in the tracking mode without any special hardware.
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  • Youngha Chang, Suguru Saito, Hiroki Takahashi, Masayuki Nakajima
    Type: Article
    Session ID: MIP2001-46/AIT2001-4
    Published: February 09, 2001
    Released: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    In hand-drawn illustrations, we often draw pictures with various thickness lines. And in some animations, lines which construct an image change their thicknesses according to the view direction. However, these features cannot be captured with traditional rendering methods. For solving these problems, we propose a view-dependent line rendering method. That is, after creating 3D data objects, a user sets each line thickness information according to the view direction. Then, it is stored to a user-defined reference table named line rendering information table. By using this method, a user can set the line rendering thickness freely in one object and can control thickness of each line according to the view direction.
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  • Type: Appendix
    Pages App1-
    Published: February 09, 2001
    Released: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • Type: Cover
    Pages Cover2-
    Published: February 09, 2001
    Released: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    Download PDF (66K)
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