lect-1 - CAP 6411 Computer Vision Systems Instructor: Dr....

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1 CAP 6411 Computer Vision Systems • Instructor: Dr. Mubarak Shah, shah@cs.ucf.edu , 238 CSB, http://www.cs.ucf.edu/class/cap6411 • Office Hours: 2PM to 3PM Mon, 4PM-5PM Tu, 3PM-4PM Thurs • Grading – Mid term 20%, Final 25%, Programs 45% , Homework 10% • Recommended Book, but not required. – Digital Video Processing, A. M. Tekalp, Prentice Hall.
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2 Multimedia • Text • Graphics • Audio • Images • Video Imaging Configurations • Stationary camera stationary objects • Stationary camera moving objects • Moving camera stationary objects • Moving camera moving objects
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3 Video • sequence of images • clip • mosaic • key frames Sequence of Images
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4 Clip Mosaic
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5 Key Frames Clip
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6 Mosaic Steps in Video Computing • Acquire (CCD arrays/synthesize (graphics)) • Process (image processing) • Analyze (computer vision) • Transmit (compression/networking) • Store (compression/databases) • Retrieve (computer vision/databases) • Browse (computer vision/databases) • Visualize (graphics)
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7 Computer Vision • Measurement of Motion – 2-D Motion • optical flow • point correspondences – 3-D Motion • structure from motion (sfm) • compute 3D translation, 3D rotation • shape from motion (depth) Computer Vision (contd.) • Scene Change Detection – consecutive frame differencing – background differencing • median filter • pfinder • W4 • Mixture of Gaussians
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8 Computer Vision (contd.) • Tracking – people – Vehicles – animals Computer Vision (contd.) • Video Recognition – activity recognition – gesture recognition – facial expression recognition – lipreading • Video Segmentation – shots – scenes – stories – key frames
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9 Image Processing • Filtering • Compression – MPEG-1 – MPEG-2 – MPEG-4 – MPEG-7 (
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lect-1 - CAP 6411 Computer Vision Systems Instructor: Dr....

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