Reports of the Technical Conference of the Institute of Image Electronics Engineers of Japan
Online ISSN : 2758-9218
Print ISSN : 0285-3957
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Reports of the 236th Technical Conference of the Institute of Image Electronics Engineers of Japan
Displaying 1-7 of 7 articles from this issue
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Date: February 27, 2008 Location:Kikai-Shinko-Kaikan Bldg.
10:50-12:00 Chair: Hideaki UEDA, Daiso-sangyo
  • Method of Detecting Literal Errors when a Document is Proofread on a Liquid Crystal Display ( LCD ) Screen
    Junpei YAMAGUCHI, Satoru NIWAYAMA, Tsuneaki OHYAMA, Haruo ISONO
    Session ID: 07-04-01
    Published: 2007
    Released on J-STAGE: October 07, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-04.0_1
    CONFERENCE PROCEEDINGS RESTRICTED ACCESS
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    Documents displayed on the display screen are generally proofread by “ Silent Reading, ” whereby literal errors tend to be overlooked frequently. In this research, two types of proofreading methods were examined: the “ Reading Aloud ” method, and the “ Mouse Drag ” (MD) method, where proofreading is performed while dragging sentences with the mouse of the computer. Error detection accuracy for these methods was compared with the usual Silent Reading method. The results revealed that the Reading Aloud and MD methods were more effective than the Silent Reading method for detecting errors. Movement of vision was also measured for the Silent Reading, Reading Aloud, and MD methods using an eye movement measurement device. It was observed that, with the Reading Aloud and MD methods, letters and characters were frequently “ read back ” and the reading speed was slower compared to the Silent Reading method. Therefore, it was concluded that the Reading Aloud and MD methods were more effective for error detection than the Silent Reading method presumably because the subjects subconsciously “ read back ” the letters and characters while proofreading.
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  • A Study on Objective Evaluation Method for Vectorized Characters in Scanned Documents
    Hiroki KISHI, Hidefumi OHSAWA
    Session ID: 07-04-02
    Published: 2007
    Released on J-STAGE: October 07, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-04.0_5
    CONFERENCE PROCEEDINGS RESTRICTED ACCESS
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    When the scanned document including fax document is enlarged on the display, characters are required to be displayed at high quality. About this requirement, the vectorizing technology which use function approximation to describe outline of characters is getting attention, so the many developments of vectorizing technology are advanced. Although objective evaluation method of the distortion caused by vectorizing should be established in order to develop vectorizing technology, the number of case of the study is little. In this paper, we propose the objective evaluation method of the distortion caused by vectorizing in the scanned documents.
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13:00-14:45 Chair: Hiroshi ARISAWA, Fuji Xerox Co., Ltd.
  • Integral Photography using High Resolution Fly's Eye Lens Sheet and Printer Output
    Kazuhisa YANAKA
    Session ID: 07-04-03
    Published: 2007
    Released on J-STAGE: October 07, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-04.0_9
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    ntegral photography which uses an 80LPI fly's eye lens sheet was developed. Two kinds of lens sheets, one consists of square lenses and the other consists of hexagonal lenses, were used. Both lens sheets are very thin and flexible. They were diverted from other 3D printing system called HALS, which uses 3D moire. In the experiment 3D objects made by CG are rendered from 1024 different angles, and an IP image is synthesized from them. The IP image is printed with a common ink jet printer, and it is observed through one of the lens sheets. It was confirmed that high resolution integral photography is achieved.
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  • Acquisition Method of Texture Information of Metallic Topcoats for a Video Camera
    Hideki KOBAYASHI, Yoshifumi SHIMODAIRA
    Session ID: 07-04-04
    Published: 2007
    Released on J-STAGE: October 07, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-04.0_13
    CONFERENCE PROCEEDINGS RESTRICTED ACCESS
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    When we see photographic images of metallic topcoats, we often perceive that the impression of them is different from those of real objects. It probably seems that the phenomenon is caused by saturation of image signals resulting from lacks of the dynamic range. This is essential for high fidelity video cameras. The objective of the research is to make clear a way of acquisition of texture information of metallic topcoats. For our first approach, we tried to analyze depth feeling for metallic topcoats. In order not to saturate image signals of flake pigments in the coating, high dynamic range images were made. We subjectively evaluated the appearance of flake pigments in the images by comparing with that of real objects of metallic topcoats. As the result, the appearance of flake pigments in the images become close to that of real objects when colors of images were almost equal to them and luminance of the flakes are proportional to their sizes with higher ratio.
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  • Flexible Driver LSI for Electronic Paper
    Reiji HATTORI, Michihiro ASAKAWA, Tsubasa SAEKI, Yoshitomo MASUDA, Nor ...
    Session ID: 07-04-05
    Published: 2007
    Released on J-STAGE: October 07, 2008
    DOIhttps://doi.org/10.11371/wiieej.07-04.0_17
    CONFERENCE PROCEEDINGS RESTRICTED ACCESS
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    In order to show the difference from a liquid crystal display (LCD), an electronic paper should be thin like a paper overall and it should be free from any codes completely even for a power source. In this paper, we reported the flexibility and low-power consumption characteristics of the flexible and thin LSI driver we developed by ourselves for Quick-Response Liquid-Powder Display (QR-LPD®), and discussed about a possibility to achieve the electronic paper network.
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15:00-16:10 Chair: Yoichiro NEO, Shizuoka University
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