lect819h - Multimedia Text Graphics Audio Images Video...

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•1 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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•2 Video • sequence of images • clip • mosaic • key frames Sequence of Images
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•3 Clip Mosaic
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•4 Key Frames 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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•5 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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•6 Computer Vision (contd.) • Tracking – people – vehicles – animals Computer Vision (contd.) • Video Recognition – activity recognition
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This note was uploaded on 06/12/2011 for the course CAP 6411 taught by Professor Shah during the Spring '09 term at University of Central Florida.

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lect819h - Multimedia Text Graphics Audio Images Video...

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