ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
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22.3
Displaying 1-8 of 8 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    Pages Cover1-
    Published: January 16, 1998
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.22.3.0_Cover1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • [title in Japanese]
    Article type: Index
    Pages Toc1-
    Published: January 16, 1998
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.22.3.0_Toc1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • Hyper-D signal processing for Single Chip CCD Color Camera
    Masayuki Yoneyama, Yasutoshi Yamamoto, Kohichi Toyomura, Masaaki Nakay ...
    Article type: Article
    Pages 1-6
    Published: January 16, 1998
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.22.3.0_1
    CONFERENCE PROCEEDINGS FREE ACCESS
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    We developed a wide dynamic range imaging & signal processing technology. Using Hyper-D-CCD and digital signal processing, long-exposure signal and short-exposure signal are both readout from CCD in 1TV-field period, composed aduptively and corrected tone reproduction. This method expands dynamic range remarkably. In case of 16ms long exposure and 1ms short exposure, we acheived dynamic range 16 times as wide as conventional imaging system.
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  • Noise Cancel Circuit for CMOS Image Sensor
    Yoshiyuki Matsunaga, Yukio Endo
    Article type: Article
    Pages 7-11
    Published: January 16, 1998
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.22.3.0_7
    CONFERENCE PROCEEDINGS FREE ACCESS
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    CMOS image sensor whose each unit cell has charge amplifier in it has large fixed pattern noises due to Vth fluctuation of the amplifier transistors. Noise Canceling circuit for CMOS image sensor has been studied, fabricated, and evaluated. The Circuit has successfully suppressed the noise below detectable limit. By this result, is becomes possible that CMOS image sensor is going to overcome CCD image sensor not only in merit of use and production but also in performances. Device technology for buried photodiode is inevitable to establish modified CMOS process. The buried photodiode for CMOS image sensor will be in our hand in much shorter period compared to that for CCD because we have a lot of know-hows to build buried photodiode.
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  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
    Article type: Article
    Pages 13-16
    Published: January 16, 1998
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.22.3.0_13
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • Eye Movement Analysis and its Application to Evaluation of Image Quality
    Kimiyoshi MIYATA, Masayuki SAITO, Norimichi TSUMURA, Hideaki HANEISHI, ...
    Article type: Article
    Pages 17-20
    Published: January 16, 1998
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.22.3.0_17
    CONFERENCE PROCEEDINGS FREE ACCESS
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    It is well known that an image has a particular gazing area. From the experimental results of our previous papers, we found that total image quality is highly influenced by quality of the gazing area. In this paper, we evaluated total image quality of degraded images by a physical quality criterion (PQC) calculated from the gazing area. The experimental result showed that the calculated PQC is not dependent on the scene. On the other hand, PQC calculated from the whole area of the image is dependent on the scene content. In this paper, the effectiveness of the evaluation of image quality under the consideration of gazing area is presented and discussed.
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  • Standard High Precision Pictures : SHIPP
    Koichi Sakamoto, Hitoshi Urabe
    Article type: Article
    Pages 21-25
    Published: January 16, 1998
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.22.3.0_21
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Along with the recent rapid penetration of personal computer, internet, digital camera, etc., full color images have become widely handled in digital form by various classes of users. In such a trend, technologies for color management system (CMS), printing, hardcopy output, image transmission, image compression, etc. are highlighted, and their refinements are on way to achieve higher image qualities. In the research activities in image technologies, the significance of high precision standard pictures is self-evident as they facilitate the evaluation of image processing algorithm, the accurate comparison of image output devices, etc. In April 1997,the activity of the Committee for Standard High Precision Pictures (Note 1) has resulted in the preparation of high resolution standard pictures characterized by that they are expressed by 16bit XYZ data as well as 8bit CIELAB data and Calibrated RGB data. The set of pictures named SHIPP consists of four full color natural scenes and a computer-generated chart, each expressed in three color spaces, i.e., XYZ, CIELAB, and Calibrated RGB. A detailed description of the last color space will be given later. The image data are formated according to TIFF6.0 and recorded in a CD-ROM.
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  • [title in Japanese]
    Article type: Appendix
    Pages App1-
    Published: January 16, 1998
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.22.3.0_App1
    CONFERENCE PROCEEDINGS FREE ACCESS
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