• 제목/요약/키워드: Engineering College

검색결과 25,767건 처리시간 0.052초

Visual Fatigue Reduction Based on Depth Adjustment for DIBR System

  • Liu, Ran;Tan, Yingchun;Tian, Fengchun;Xie, Hui;Tai, Guoqin;Tan, Weimin;Liu, Junling;Xu, Xiaoyan;Kadri, Chaibou;Abakah, Naana
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제6권4호
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    • pp.1171-1187
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    • 2012

  • A depth adjustment method for visual fatigue reduction for depth-image-based rendering (DIBR) system is proposed. One important aspect of the method is that no calibration parameters are needed for adjustment. By analyzing 3D image warping, the perceived depth is expressed as a function of three adjustable parameters: virtual view number, scale factor and depth value of zero parallax setting (ZPS) plane. Adjusting these three parameters according to the proposed parameter modification algorithm when performing 3D image warping can effectively change the perceived depth of stereo pairs generated in DIBR system. As the depth adjustment is performed in simple 3D image warping equations, the proposed method is facilitative for hardware implementation. Experimental results show that the proposed depth adjustment method provides an improvement in visual comfort of stereo pairs as well as generating comfortable stereoscopic images with different perceived depths that people desire.

  • https://doi.org/10.3837/tiis.2012.04.013 인용 PDF KSCI

Liquid Crystal Alignment Effect on the Polymer Surface using Thin Plastic Substrate

  • Hwang, J.Y.;Nam, K.H.;Kim, J.H.;Seo, D.S.;Choi, M.K.;Suh, D.H.
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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    • pp.1125-1131
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    • 2004

  • We have investigated the generation of pretilt angle for a nematic liquid crystal (NLC) alignment with rubbing alignment method on the two kinds of polyimide (PI) surfaces using thin plastic substrates. The NLC pretilt angles generated on thin plastic substrates are higher than that on the glass substrate. We study that AFM (atomic force microscope) image of rubbed PI surface with polymer film has formed the micro-groove. Also, EO characteristics of the TN-LCD with a rubbed PI surface based on polymer are almost the same as that of the TN-LCD with a rubbed PI surface based on glass.

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FUZZY Gain Tuning of PI Speed Controller Depending on Afterloads In Total Artificially Heart

  • 최정훈;최원우;최재순;엄경식;;민병구
    • 대한의용생체공학회:학술대회논문집
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    • 대한의용생체공학회 1997년도 춘계학술대회
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    • pp.156-160
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    • 1997

  • In this paper, the control scheme is proposed that PI controller parameter used for TAH speed control is adapted by fuzzy logic method using only the motor current waveform. By scheduling PI parameters, minimization of the vibration and the energy consumption and overcoming AoP loads becomes possible. In in vitro tests experimental results show our approach is a good scheme that is adapted to changing afterloads well.

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