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21 May 2004 Dynamic region-of-interest acquisition and face tracking for intelligent surveillance system
Young-Ouk Kim, Sangjin Kim, Chang-Woo Park, Ha-Gyeong Sung, Joonki Paik
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Proceedings Volume 5299, Computational Imaging II; (2004) https://doi.org/10.1117/12.527182
Event: Electronic Imaging 2004, 2004, San Jose, California, United States
Abstract
Recently, surveillance systems gain more attraction than simple CCTV systems, especially for complicated security environment. The major purpose of the proposed system is to monitor and track intruders. More specifically, accurate identification of each intruder is more important than simply recording what they are doing. Most existing surveillance systems simply keep recording the fixed viewing area, and some others adopt the tracking technique for wider coverage. Although panning and tilting the camera can extend the viewing area, only a few automatic zoom control techniques for acquiring the optimum ROI has been proposed. This paper describes a system for tracking multiple faces from input video sequences using facial convex hull-based facial segmentation and robust hausdorff distance. The proposed algorithm adapts skin color reference map in the YCbCr color space and hair color reference map in the RGB color space for classifying face region. Then, we obtain an initial face model with preprocessing and convex hull. For tracking, this algorithm computes displacement of the point set between frames using a robust hausdorff distance and the best possible displacement is selected. Finally, the initial face model is updated using the displacement. We provide experimental result to demonstrate the performance of the proposed tracking algorithm, which efficiently tracks rotating, and zooming faces as well as multiple faces in video sequences obtained from at CCD camera.
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Young-Ouk Kim, Sangjin Kim, Chang-Woo Park, Ha-Gyeong Sung, and Joonki Paik "Dynamic region-of-interest acquisition and face tracking for intelligent surveillance system", Proc. SPIE 5299, Computational Imaging II, (21 May 2004); https://doi.org/10.1117/12.527182
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KEYWORDS
Skin
Image segmentation
RGB color model
Detection and tracking algorithms
Video
Image processing algorithms and systems
Surveillance systems
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