An Index of Evaluation of Effect of Jaggy Elimination by Pseudorandom Pixel Placement

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  • MAEDA Yui
    Div. of Electrical & Computer Eng., Kanazawa University
  • AKITA Junichi
    Div. of Electrical & Computer Eng., Kanazawa University

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Other Title
  • 擬似的不規則画素配置によるジャギー解消効果の評価指標(インタラクティブシステム・画像入力デバイス・方式,及び一般)
  • 擬似的不規則画素配置によるジャギー解消効果の評価指標
  • ギジテキ フキソク ガソ ハイチ ニ ヨル ジャギー カイショウ コウカ ノ ヒョウカ シヒョウ

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Abstract

The pixels in the conventional image systems are located in lattice places, and the lattice placement of pixels causes the jaggy in the image, which often cause the severe defect in the image quality. The conventional approaches to overcome this jaggy problem are such as the increased number of pixels and anti-aliasing, however, the number of pixels is limited by the physical pixel size and the quantity of the image information, while the anti-aliasing intrinsically causes the blurred image. The authors have been proposing and evaluating the image systems with pseudorandom pixel placement to decrease the effect of the jaggy. In this report, we discuss the comparison of the subjective evaluation index of the jaggies, which is the final goal of the image quality evaluation, with the objective evaluation index of the jaggies, which can be calculated from the image information. We also discuss the jaggy elimination effect by pseudorandom pixel placement by using these two evaluation indexes.

Journal

  • ITE Technical Report

    ITE Technical Report 33.23 (0), 9-12, 2009

    The Institute of Image Information and Television Engineers

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