2D & 3D Manipulation of Motion Imagery
Speaker: Rakesh (Teddy) Kumar & Harpreet Singh Sawhney , Sarnoff Corporation
Date: November 29 2001
Time: 4:00PM
Location: 9th Floor Conference Room
The confluence of Video and Vision research at Sarnoff is strongly influenced by real world applications. Over the past decade or so, advances in fundamental algorithms, and successes in creating customer oriented technologies and products have produced a unique R&D environment at Sarnoff. This talk will present a tour of algorithm and application development as it has evolved at Sarnoff in the recent past. Specifically, we will present a framework for video representation within which progressively complex video alignment models reveal the underlying 2D and 3D nature of scenes and objects behind moving video pixels. The framework will be highlighted through applications ranging from tele-presence, scene modeling, geo-registration and targeting, video manipulation and enhanced visualization of video.
Video alignment is a key tool in the representation and manipulation of the fundamental information content present in motion video sequences. Global 2D parametric alignment models reveal the 2D nature of video frames from close-by vantage points. These can be used for stabilization of video sequences and construction of video panoramas. Layered representations of motion video in terms of moving object and multiple scene layers can be exploited for tracking, compression and indexing. Alignment of video frames with generic optical flow and 3D models reveals the rigid and non-rigid structure of objects and scenes, and can be used for video enhancement, 3D recovery, modeling and image based rendering. Alignment of videos to stored reference models enables augmented reality, video insertion, and targeting. The talk will span these and other related applications.
RAKESH KUMAR (Member IEEE) is currently the head of the Media Vision Group at Sarnoff Corporation, Princeton, New Jersey. He received his Ph.D. in Computer Science from the University of Massachusetts at Amherst in 1992, his MS from the State University of New York, Buffalo and his B.Tech. from the Indian Institute of Technology, Kanpur. At Sarnoff, he has been directing commercial and government research and development projects in computer vision with a focus in the areas of immersive tele-presence and 3D modeling from images, image registration, video manipulation and exploitation. He is an Associate Editor for the IEEE Transactions on Pattern Analysis and Machine Intelligence. He is an author/ co-author of more than 30 technical publications and is a co-inventor of 6 patents.
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