ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
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23.13
Displaying 1-13 of 13 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    Pages Cover1-
    Published: February 18, 1999
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.23.13.0_Cover1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • [title in Japanese]
    Article type: Index
    Pages Toc1-
    Published: February 18, 1999
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.23.13.0_Toc1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • MPEG2 Section Transmission System and Evaluation System of Program Index.
    Kazuhiro MACHIDA, Takeshi KIMURA, Yasuaki YAMAGISHI, Mitsuteru KATAOKA
    Article type: Article
    Session ID: BCS'99-1/BFO'99-30
    Published: February 18, 1999
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.23.13.0_1
    CONFERENCE PROCEEDINGS FREE ACCESS
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    The program index is designed to provide information to assist selection and search of broadcasting programs. We have developed a test bed for MPEG2 Section Transmission System on Program Index specification to evaluate the Program Index and its description profile. This paper describesthe outline of MPEG2 Section Transmission System and Evaluation System of Program Index.
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  • Development of Prototype Receiver for Program Index
    Mitsuteru KATAOKA, Kazuhiro MACHIDA, Takeshi KIMURA
    Article type: Article
    Session ID: BCS'99-2/BFO'99-31
    Published: February 18, 1999
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.23.13.0_7
    CONFERENCE PROCEEDINGS FREE ACCESS
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    The Program Index is a metadata of TV program for new broadcasting services such as multi-scenario program, hierachical program and so on. We have developed an experimental end-to-end system of the Program Index. In this paper, we describe the receiver part of the system, which can browse the tree structure of program segments and play the segments selectively. We also describe POT (PTS Offset Table) code, which improves efficient time accuracy of the Program Index.
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  • Transmission Performances of TMCC Signal for Digital Terresrtial Broadcasting
    Michihiro UEHARA, Kenichi TSUCHIDA, Toru KURODA
    Article type: Article
    Session ID: BCS'99-3/BFO'99-32
    Published: February 18, 1999
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.23.13.0_13
    CONFERENCE PROCEEDINGS FREE ACCESS
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    ISDB-T(Integrated Services Digital Broadcasting-Terrestrial)transmission signal consists of a set of frequency blocks called OFDM-Segments. Transmission parameters such as the modulation scheme and the coding rate of the inner code can be selected independently for each OFDM-Segment. These transmission parameters are transmitted to receivers by TMCC (Transmission and Multiplexing Configuration Control)pilot carriers, which exist in each OFDM-Segment. This paper describes transmission performances of TMCC signal based on laboratory tests. Required C/N of TMCC carriers are studied under various interference conditions.
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  • A Method of Lossless Compression of Grayscale Images using Adaptive Arithemetic Codes
    Tetsuro KUGE
    Article type: Article
    Session ID: BCS'99-4/BFO'99-33
    Published: February 18, 1999
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.23.13.0_19
    CONFERENCE PROCEEDINGS FREE ACCESS
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    A new method of loss-less compression of gray-scale images, using The combination of "classic" predictive coding and adaptive arithmetics coding, has been studied. The characteristics of the method are discussed in relation to the context dependence of the coding. and the nonstationarity of the images. Several experimental results are shown in comparing with the conventional JPEG-LS method.
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  • A Study on Improvement of Disparity Estimation Using Adaptive Processing
    Ken MINOMO, Makoto TADENUMA, Yasuaki KANATSUGU
    Article type: Article
    Session ID: BCS'99-5/BFO'99-34
    Published: February 18, 1999
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.23.13.0_25
    CONFERENCE PROCEEDINGS FREE ACCESS
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    This paper reports the results of a study on improvement of disparity estimation using adaptive processing. When the high-pass filtered luminance signals are used in block matching based on the sum of absolute error criteria, the accuracy of disparity estimation can be improved around edges in the images. In order to reduce miss-matching, we propose an adaptive processing algorithm to determine the proper function for each block. We verified the effect of this algorythm on the disparity-compensated images.
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  • A Study on the Relation ship between Shooting Conditions and the "Cardboard Effect" in Stereoscopic Images
    Asako Omori, Hirokazu Ymanoue, Makoto Okui, Ichiro Yuyama
    Article type: Article
    Session ID: BCS'99-6/BFO'99-35
    Published: February 18, 1999
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.23.13.0_31
    CONFERENCE PROCEEDINGS FREE ACCESS
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    In this paper, we discuss the "cardboard effect"which is a common form of distortion in stereoscopic images. Particularly, the relationship is studied between the "cardboard effect"and shooting conditions, such as the focal length of lenses or lighitng conditions. Subjective evaluation tests show that binocular disparity derived from camera separation and focal length of lenses has important effects on the "cardboard effect". Additionally, motion parallax has also serious effects while the effect caused by binocular disparity remains indecisive. On the other hand, other conditions such as lighting conditions or background conditions are also effective.
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  • Development of a compact 3-D HDTV camera with zoom lenses
    hirokazu Yamanoue, Makoto Okui, Fumio Okano, Ichiro Yuyama
    Article type: Article
    Session ID: BCS'99-7/BFO'99-36
    Published: February 18, 1999
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.23.13.0_37
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Research on shooting conditions of 3D program production for natural 3D images has been continued. In the study, it has been shown that an orthostereosocopic condition brings about no inconsistency between depth information from perspective of the lenses and that from binocular parallax, and can be effective to reproduce natural 3D images. A newly developed 3D camera is based on the condition which results in compactness of the camera. At the same time, the new camera has a zooming function and is valuable in many ways, especially sprot broadcasting. In this paper, we describe the outline of the camera and psychological effects of 3D images shot by the camera.
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  • Establishing a System for Eye-Sensitive 3D Hi-Vision Programs
    Seiiti Onoe, Akira Saitou
    Article type: Article
    Session ID: BCS'99-8/BFO'99-37
    Published: February 18, 1999
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.23.13.0_43
    CONFERENCE PROCEEDINGS FREE ACCESS
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    The world famous "Kinoshita Circus"came back to Okayama-city for a 4day-running circus stage in last August. In order to capture their dynamic performances, we used our 3D Hi-Vision camera and therefore created 3 dimensional program titled "Circus Tent, a place of Dreams"Considering it to be shown on a 200-inch screen, our main object was to create it as sensitive as possible for viewer's eyes. After a briefexplanation, please experience this eye-sensitive 3D program.
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  • Taking Earth Image from Space : High Definition Camcorder Aboard the Space Shuttle
    Kengo Nomura, Yuji Oguri, Takashi Andou
    Article type: Article
    Session ID: BCS'99-9/BFO'99-38
    Published: February 18, 1999
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.23.13.0_47
    CONFERENCE PROCEEDINGS FREE ACCESS
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    The world first trial that the High Definition Camcorder was taken aboard on the Space Shuttle was achieved to make success with recording the interior and exterior shuttle images in November 1998. The high definition earth images allow us to feel alluring atmoshpere, which also has more scientific value than ever documented by TV camcorder due to its high resolution. The safety verification and the measurement was required by NASA in order to approve as an on-board equipment. And we had the opportunity to present the astronauts about the camcorder operation. During the mission, the camcorder worked normally in the orbiter. Meanwhile the space radiation might cause the CCD defects tha produces the pixel noise in teh recorded image, but we introduced the pixel noise corrector at the post video processing and immediately restored as a normal image without any defects.
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  • Field Strength Simulation System "ERIAKAKUBEH"
    Yoshinobu OKAMOTO, Hisashi KONDO
    Article type: Article
    Session ID: BCS'99-10/BFO'99-39
    Published: February 18, 1999
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.23.13.0_53
    CONFERENCE PROCEEDINGS FREE ACCESS
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    We had developed field strength simulation system "ERIAKAKUBEH".This system is possible to simulate the abusolute service area of the analoge terrestrial TV and the new service area of the digital terrestrial TV. We had approached to develop the approximate formula and the results was nearly equaled to the measurement value. This paper discribes consideration of characteristic urban propagation, effect of the antenna direction pattern, and D/U.
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  • [title in Japanese]
    Article type: Appendix
    Pages App1-
    Published: February 18, 1999
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.23.13.0_App1
    CONFERENCE PROCEEDINGS FREE ACCESS
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