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RGB Motion Segmentation using Background Subtraction based on AMF

  • Kim, Yoon-Ho
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.6 no.2
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    • pp.81-87
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    • 2013
  • Motion segmentation is a fundamental technique for analysing image sequences of real scenes. A process of identifying moving objects from data is a typical task in many computer vision applications. In this paper, we propose motion segmentation that generally consists from background subtraction and foreground pixel segmentation. The Approximated Median Filter (AMF) was chosen to perform background modeling. Motion segmentation in this paper covers RGB video data.

Vehicle-following system using color-vision

  • 정준형;한민홍
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 1994.04a
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    • pp.536-542
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    • 1994
  • This paper introduces a vehicle-following-system in which a moving vehicle recognizes the front vehicle's tail-light color and luminance, while maintaining a certain distance and avoiding collision. Using color images rather than using gray-scale images makes it easier to detect the objective color and eliminates the need of a thresholding. The Methods used are RGB to HSV conversion and global region growing method. This paper contributes to the basic study of Color-Vision, and can be extended to color inspection systems.

Active matrix LCD기술

  • Chang, Jin
    • 전기의세계
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    • v.38 no.10
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    • pp.4-12
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    • 1989
  • 최근에는 전자 장치가 소형화, 경량화되는 추세이다. 이러한 전자 장치와 인간의 접속 방법으로 표시기(display)가 사용된다. 표시 기술은 표1에 나타난 것처럼 CRT, PDP, LCD, ECD, 기타 등으로 구별할 수 있다. 그중에서 LCD(Liquid Crystal Display)는 낮은 전력 소모, 낮은 구동 전압, 소형, 경량, gray scale 기능, 저가격 등의 장점이 있기 때문에 많은 연구가 수행되고 있다. 액정 지시기는 외부 전장에 의한 분자의 배열이 이루어져, 빛을 선별 투과 혹은 반사시켜 빛의 세기를 조절하는 특성을 이용하여 정보 전달 기능을 갖는다. LCD는 시계, 전자계산기, TV, 컴퓨터 단말기 등에 이용된다. LCD에 사용되는 액정은 구조적 특성에 따라서 semetic, cholestic, nematic액적으로 분류된다. 그런데 nematic액정이 분자 재배열에 필요한 반응 시간이 가장 빠르기 때문에 많이 사용된다.

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System Interface for SoG in LTPS TFT Process

  • Min, Kyung-Youl;Yoo, Chang-Sik
    • 한국정보디스플레이학회:학술대회논문집
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    • 2006.08a
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    • pp.1791-1794
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    • 2006
  • For system-on-glass (SoG) with low-temperature poly-silicon (LTPS) thin film transistor (TFT), a new system interface architecture and timing controller are developed. With the newly developed system interface architecture, line memory can be eliminated which would take large area of SoG display panel. The system interface and timing controller are targeted for the application for 6-bit gray scale, 60-frames/s qVGA format.

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Development of Scratch Detecting Algorithm for ITO Coated Glass using Adaptive Logical Thresholding Method (ALT기법을 이용한 ITO 코팅유리의 결함 검출 기법 개발)

  • 김면희;이상룡
    • Journal of the Korean Society for Precision Engineering
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    • v.20 no.8
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    • pp.108-114
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    • 2003
  • This research describes a image-processing technique for the scratch detecting algorithm for ITO coated glass. We use the modified logical thresholding method (called adaptive logical thresholding method) for binarization of gray-scale glass image. This method is useful to the algorithm for detecting the scratch of ITO coated glass automatically without need of any prior information of manual fine-tuning of parameters.

Vision Algorithm for obstacle detection of mobile robot (이동 로보트의 장애물 인식을 위한 Vision Algorithm)

  • 이정수;임준홍;변증남
    • 제어로봇시스템학회:학술대회논문집
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    • 1987.10b
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    • pp.83-86
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    • 1987
  • A vision algorithm is presented for the separation of near objects from distant objects. In the algorithm, a difference field of a stereo pair of images is computed to obtain the range information and the median filter is used for the suppression of distant objects. The objects within a given distance is segmented by thresholding the gray scale cross-section of the median filtered difference field. The experiment is performed in a laboratory setting.

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Development of scratch detecting algorithm for ITO coated glass Using image processing technique

  • Kim, Myun-Hee;Bae, Joon-Young;Park, Se-Hong;Lee, Sang-Ryong
    • 한국정보디스플레이학회:학술대회논문집
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    • 2002.08a
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    • pp.849-851
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    • 2002
  • This research describes a image-processing technique for the scratch detecting algorithm for ITO coated glass. We use the modified logical thresholding method for binarization of gray-scale glass image. This method is useful to the algorithm for detecting the scratch of ITO coated glass automatically without need of any prior information of manual fine-tuning of parameters.

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Rubbing Process Evaluation Method for The LCD Panel

  • Honoki, Hideyuki;Sakai, Kaoru;Kawabe, Shun'Ichi;Nakasu, Nobuaki
    • 한국정보디스플레이학회:학술대회논문집
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    • 2002.08a
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    • pp.115-117
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    • 2002
  • In order to realize a stable rubbing process for the liquid crystal panel, the authors investigated the quantitative evaluation method of rubbing process uniformity. The proposed method focuses on the relationship between the image quality of the LCD panel for gray scale images and the rubbing uniformity. The proposed method indicates rubbing uniformity using quantitative parameters of spots and hairlines on the LCD panel.

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Topographic Brain Map of Multi-Channel EEG by Spectrum Analysis Method (스펙트럼 해석방법에 의한 다중찬넬 뇌파의 Topographic Brain Map)

  • 유선국;고한우
    • Journal of Biomedical Engineering Research
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    • v.9 no.1
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    • pp.31-36
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    • 1988
  • A personal computer-based brain map is described which will display a gray scale maps showing the distribution of signals derived from the electrical activity of the brain such as EEG or EP This topographic brain mapping system has a flexibility which describe the electrode number and placement mapping onto any shaped space and generate a brain maps by incoorporated the data acquisition and processing software with conventional EEG machine.

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