ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
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24.64
Displaying 1-12 of 12 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    Pages Cover1-
    Published: November 01, 2000
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.24.64.0_Cover1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • [title in Japanese]
    Article type: Index
    Pages Toc1-
    Published: November 01, 2000
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.24.64.0_Toc1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • CMOS Image Sensor Technologies
    Shigetoshi SUGAWA
    Article type: Article
    Session ID: IPU2000-78/IDY2000-2
    Published: November 01, 2000
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.24.64.0_1
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Recently, CMOS Image Sensors have achieved those high performances such as image qualities by many developer's efforts. In this paper, the issues for future CMOS image sensors in scale-down process technologies and system-on-chip technologies are discussed.
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  • A Study of the Pickup Method for Integral Photography
    Jun ARAI, Haruo HOSHINO, Mitsuho YAMADA, Ichiro YUYAMA, Fumio OKANO
    Article type: Article
    Session ID: IPU2000-79/IDY2000-2
    Published: November 01, 2000
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.24.64.0_7
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Integral Photography(IP)is a technique for creating 3D autostereoscopic images. We studied the pickup method for IP when the subjects were distributing widely toward depth direction. First, the characteristics of resolution by the product of their MTFs(overall MTF)is evaluated. Next, the relationship between the overall MTF at Nyquist frequency for IP and how the pickup system is focused on the subject is discussed. As a result, by focusing on a relatively far point, appropriate responses were gained for the reconstructed images whose original subjects are distributed widely towards depth direction.
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  • A Wide Dynamic range Color Line and High Resolution Monochromatic Line Sensor
    Tatsuya Hagiwara, Tetsuo Yamada, Jin Murayama, Eiichi Okamoto, Tami Oo ...
    Article type: Article
    Session ID: IPU2000-80/IDY2000-2
    Published: November 01, 2000
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.24.64.0_15
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Recently, wider dynamic range and higher resolution become more and more important for professional use of line sensor. A new four line CCD sensor has been developed. Three 10504 pixels three color lines have highly wide dynamic range up to 87dB in practical system application. The fourth line is a 16804 pixels monochromatic line for high resolution document scanning application.
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  • 1200DPI-CCD Contact Type Sensor Module
    Seiichi Mashiko, Masayuki Ooki, Toshihiko Baba, Yoshihiko Tokito, Take ...
    Article type: Article
    Session ID: IPU2000-81/IDY2000-2
    Published: November 01, 2000
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.24.64.0_21
    CONFERENCE PROCEEDINGS FREE ACCESS
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    1200DPI CCD contact type sensor module can be driven by pulse and electric source of 5V was developed. This module is used for a color image scanner, and consists of inline type CCD image sensors, a rod lens array, LED, and lightguide. Since eight CCD sensors are arranged in a straight line, contain the counter circuit in each sensor, switch an output one by one and can read it, from one output terminal, they can output a picture signal serially and can attain simplification of a system. With the formation of 1200DPI, a pixel pitch becomes short. Therefore, although disorder of the pixel pitch in a connector part causes picture degradation, it is eased by narrowing distance between tip connectors. Since realization of a 5MHz high-speed data rate and high S/N enables correspondence of high definition and high-speed reading, the spread of the color image scanners which used 1200DPI module is expected.
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  • Development of the 2.8V single power supply CCD chip set
    Takashi Tanimoto, Toru Watanabe, Yoshihiro Okada, Yoshimitsu Noguchi, ...
    Article type: Article
    Session ID: IPU2000-82/IDY2000-2
    Published: November 01, 2000
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.24.64.0_27
    CONFERENCE PROCEEDINGS FREE ACCESS
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    We developed low power consumption chip set for CCD digital camera. It operates 2.8V single power supply. We actualized low voltage CCD operation byoptimization of CCD process conditions. The power supply voltage for CCD output amplifier is +5V, and vertical shift clock voltage is -5V to +2.8V. The single power supply system was realized by the vertical driver chip built in charge pump DC-DC converter. Then, we established the way of preventing noise. The technology of the power management reduced power consumption more. This technology can be used without control such as a microcomputer. Though it was the CCD camera of the high sensitivity and low noise, the low power consumption of less than 100mW(VGA, 5fps)could be realized.
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  • Near infrared sensitivity frame transfer B/W CCD and digital camera system
    Shin'ichiro Izawa, Kazuo Ishimoto, Tohru Yamashita, Akira Shimizu ...
    Article type: Article
    Session ID: IPU2000-83/IDY2000-2
    Published: November 01, 2000
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.24.64.0_33
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Black and white surveilance video cameras are required highly sensitivity and widely dynamic range. To require high sensitivity under low illuminance, near infrared image sensors are needed. In the future, surveilance video camera systems will evolve into digital systems and information technology network systems. We have developed 1/4-type(diagonal 4.5mm)frame transfer CCD for EIA/CCIR B/W TV systems which has high sensitivity under near infrared light, and digital camera system using these CCDs. Special features of this system are 1)high sensitivity under near infrared light 2)wide dynamic range by CCD drive pulse and signal processing. 3)auto defect correction circuit and various function in digital signal processing.
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  • Development of Rewritable Recording Media Using Leuco Dye
    Kyoji Tsutsui
    Article type: Article
    Session ID: IPU2000-84/IDY2000-2
    Published: November 01, 2000
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.24.64.0_39
    CONFERENCE PROCEEDINGS FREE ACCESS
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    We have developed the practical rewritable recording media using leuco dyes generally used for the thermal recording materials. Espetially, reversible coloring/decoloring properties were obtained by using the developers having both and acid group and a long-chain alkyl group, and are concerned with forming the molecular aggrigation structure combined leuco dye molecules and the developer molecules, and separating by crystallization of the developer molecules. Furthermore, higher stability of the colored image and higher erasing velocity were obtained by controling the molecluler structures of the developers. These rewritable recording media will be usefull for reducing a large amount of paper used for temporary documents.
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  • An investigation of a cell-wall charge effect in a PDP cells by a cylindrical coordinate system simulation for a PDP
    Yoshikuni HIRANO, Yukio MURAKAMI, Hideomi MATSUZAKI, Yoshimichi TAKANO ...
    Article type: Article
    Session ID: IPU2000-85/IDY2000-2
    Published: November 01, 2000
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.24.64.0_45
    CONFERENCE PROCEEDINGS FREE ACCESS
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    In order to improve the discharge characteristics of a plasma display panel(PDP), we constructed a cylindrical coordinate system simulation for a PDP based on the axial symmetric 3-dimensional fluid model. The accumulation of charge was examined as one of the cell-wall effects under the condition of DC-voltage application. The distribution of charge weakened the radial electric field at the steady state, thereby reducing loss of ions. It was shown that the peak of the particle-density distribution moves generally toward the cathode, when viewed in terms of charge accumulation on the cell wall.
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  • [title in Japanese]
    Article type: Appendix
    Pages App1-
    Published: November 01, 2000
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.24.64.0_App1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • [title in Japanese]
    Article type: Cover
    Pages Cover2-
    Published: November 01, 2000
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.24.64.0_Cover2
    CONFERENCE PROCEEDINGS FREE ACCESS
    Download PDF (62K)
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