ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
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25.59
Displaying 1-13 of 13 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    Pages Cover1-
    Published: September 14, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.59.0_Cover1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • [title in Japanese]
    Article type: Index
    Pages Toc1-
    Published: September 14, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.59.0_Toc1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • A Fast Motion Vector Detection based on Gradient Method
    Masanori TAKABAYASHI, Kousuke IMAMURA, Hideo HASHIMOTO
    Article type: Article
    Session ID: NIM2001-102
    Published: September 14, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.59.0_1
    CONFERENCE PROCEEDINGS FREE ACCESS
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    In this paper, we propose a fast motion vector detection based on gradient method. We define objective function as squared error over a block. Proposed method obtains motion vector by computing the differential coefficient of the function and applying one dimentional search to the direction. By applying the hierarchical method, it can be avoided to fall in the local minima. From simulation experiments, we compare predictive performance and computational complexity with full search block-matching algorithm and show the effectiveness of the proposed method.
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  • Video Coding Based on Combination of Motion Compensation and Matching Pursuits
    Ichiro MATSUDA, Susumu ITOH
    Article type: Article
    Session ID: NIM2001-103
    Published: September 14, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.59.0_7
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Most of recent video coding systems are based on a hybrid coding method which consists of two operations : motion compensation(MC)and waveform coding. In this framework, it is difficult to realize optimum bit-allocation to both operations since waveform coding is applied to residual signals which cannot be obtained until the operation of MC has been completed. To cope with this problem, we employ a new waveform coding algorithm called matching pursuits(MP). By combining MC with MP seamlessly and adaptively, our coding scheme can flexibly control bit-allocation to MC and MP according to the structural properties of video signals. Simulation results indicate that our coding scheme archives higher coding performance than the H.263 standard.
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  • 3D/2D Hybrid Video Coding using Multi-Parameter Motion Compensation
    Ryo ISHIKAWA, Yasuhiro INAZUMI, Toshiyuki YOSHIDA
    Article type: Article
    Session ID: NIM2001-104
    Published: September 14, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.59.0_15
    CONFERENCE PROCEEDINGS FREE ACCESS
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    This paper proposes a 3D/2D hybrid video coding technique, which utilizes 3-D DCT and a multi-parameter motion compensation with the scaling, rotation, and translation parameters. This technique applies 2-D codin scheme for the rest of areas which are not encoded with 3-D DCT. In order to improve the 2-D coding efficiency, these areas are encoded with 2-D DCT whose size is adapted to the target area. We have confirmed from the result of coding experiments that the proposed technique is superior to a conventional 3-D and MPEG techniques.
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  • Analysis of Vegetation Pattern Using Image Taken From the Helicopter
    Ryotaro KOMURA, Mamoru KUBO, Ken-ichiro MURAMOTO
    Article type: Article
    Session ID: NIM2001-105
    Published: September 14, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.59.0_23
    CONFERENCE PROCEEDINGS FREE ACCESS
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    For the analysis of crown size using image taken from the helicopter, pixel level processing is difficult. The use of image features proves to be effective. Vegetation was then characterized using these image features. The image color distribution was used as image feature. Each crown consists of same color leaves and this was used to analyze the crown size. The size of crowns and their distribution in the observation area were investigated by color analysis of the video image.
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  • Classification of Sea Ice in the Sea of Okhotsk Using Video Image Taken from the Airplane
    Daisuke KUTSUWADA, Mamoru KUBO, Ken-ichiro MURAMOTO
    Article type: Article
    Session ID: NIM2001-106
    Published: September 14, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.59.0_29
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Sea ice has been observed for climatic studies. In many cases, remote sensing techniques have been used to observe it. While satellite data gives a great amount of information about ice conditions, there still remains a need for in situ validations. The purpose of this study is to develop an image processing technique for such direct observation of sea ice. In this paper, a technique is described for classification of sea ice.
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  • A scheme for precise assessment of remote video quality by use of spread spectrum and extraction of WHT coefficients
    Ryoichi KAWADA, Osamu SUGIMOTO, Masahiro WADA, Shuichi MATSUMOTO
    Article type: Article
    Session ID: NIM2001-107
    Published: September 14, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.59.0_35
    CONFERENCE PROCEEDINGS FREE ACCESS
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    As digital television transmission becomes ubiquitous, a method for remote monitoring of transmitted picture quality is needed. Promising for this is the RR scheme, where image features are extracted and transmitted for comparison between the transmitter and the receiver side. We propose a novel RR scheme, SSWHT-RRR, which estimates PSNR. This scheme performs spread-spectrum on original and received signals, followed by orthogonal transform and extraction and transmission of transform coefficients. Spread-spectrum enables precise estimation of PSNR even if the number of extracted coefficients is small. Walsh-Hadamard transform is used as orthogonal transform for easy implementation.
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  • A Study on the Structure of MPEG Networking Camera
    Yukimitsu Sakurai, Takao Shimizu, Toshihiko Wakahara, Mitsuji Matsumot ...
    Article type: Article
    Session ID: NIM2001-108
    Published: September 14, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.59.0_41
    CONFERENCE PROCEEDINGS FREE ACCESS
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    The application of the network circulates with the progess of its infrastructure. Previously its application was limited in the application of the text and data communication. But the applications of today's network are not only the still picture and the sound but also the moving picture, Audio and Video which are already released as the packages with the multimedia technology. This paper describes the basic MPEG technology and its bitstream format which are used for this Network Camera. We propose the MPEG Network Camera which is equiped with the CCD for the high sensitivity. And we report the traffic influence, when its camera uses on the normal network. Finaly the progress and the distribution of the Networking Camera's application are mentioned.
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  • Real-time Surveillance of the crow System Using MPEG-4
    Yoshiteru KAGAWA, Hiroyuki KOBAYASHI
    Article type: Article
    Session ID: NIM2001-109
    Published: September 14, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.59.0_49
    CONFERENCE PROCEEDINGS FREE ACCESS
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    The cheap system which could be recognized automatically was manufactured as an experiment by using MPEG-4(MovingPictureExpertsGroupPhase4)which was digital image compression technology by a video camera on the market and a personal computer and PHS. The outline is reported because evaluation such as a recognition rate was done by using this system targeting the crow.
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  • Remote Monitoring of The Commercial Equipment
    Yoshinobu NAKAMURA, Kazuo ITOH, Tsuyoshi KAWAI, Yoshio OZAWA, Masaaki ...
    Article type: Article
    Session ID: NIM2001-110
    Published: September 14, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.59.0_55
    CONFERENCE PROCEEDINGS FREE ACCESS
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    The improvement of equipment management efficiency by remotely monitoring operating conditions is particularly important for commercial equipment, which requires regular maintenance, such as large refrigerators and air conditioning systems. In line with today's rapid advances in communications technology, research and development of remote monitoring technology is being actively conducted for numerous types of equipment and a number of commercial systems have been industrialized. However, there are still many types of equipment for which no monitoring systems are available and demand is increasing for their early commercialization. This paper examines remote monitoring methods suitable for various types of equipment and introduces some actual applications. It also describes the application of a system that adds Internet connectivity to improve the management efficiency of a remote equipment monitoring system in use.
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  • MPLS Interworking Services for Global Networking Service Platform
    Kunio HATO, Takeshi KUWAHARA, Hiroyuki HARA
    Article type: Article
    Session ID: NIM2001-111
    Published: September 14, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.59.0_61
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Multiprotocol Label Switching(MPLS)is one of the essential technologies for enhancing IP networks of service providers(SPs). In this paper, two services that connect MPLS networks with a SP network are proposed. One is a service that connects user's MPLS networks with a SP network. The other is a service that connects SP's MPLS-VPN networks with a SP network. In order to enable these services, the virtual label switching router(VLSR)model for the Global Networking Service Platform(GNSP)is proposed. The functions that are required for the GNSP to enable the VLSR is also presented.
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  • [title in Japanese]
    Article type: Appendix
    Pages App1-
    Published: September 14, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.59.0_App1
    CONFERENCE PROCEEDINGS FREE ACCESS
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