Development and Evaluation of Digital Video Library Interfaces
Speaker
Mike Christel
Senior Systems Scientist, Computer Science Department, Carnegie Mellon University
When
-
Where
Newell-Simon Hall 1305 (Michael Mauldin Auditorium)
Description
The Informedia research group at Carnegie Mellon (www.informedia.cs.cmu.edu) focuses on improving access to video information through speech recognition, computer vision, and natural language processing techniques. Automatically derived descriptors for the video are used to construct surrogate representations for a complete video presentation, such at titles, thumbnail images, storyboards, and video skims. This talk overviews empirical studies conducted over the years into the utility of these surrogates, leading up to current work on information visualization interfaces for querying, summarizing, and browsing across sets of video documents. The Informedia library will be demonstrated using CNN news, with an introduction to underlying processing such as face identification, overlay text detection, and named entity extraction.
Speaker's Bio
Mike Christel is a Senior Systems Scientist in the Computer Science Department at Carnegie Mellon University. For the past several years he has worked on interface development and evaluation for CMU’s Informedia Project, which makes use of speech, image and natural language processing to enable efficient access to relevant video segments from a large multi-terabyte digital video library. This work includes designing and building video surrogate interfaces like thumbnails, storyboards and skims, empirically investigating their effectiveness. Dr. Christel wishes to enhance access to video libraries so that users can explore meaningful, manipulable overviews of video document sets, issue true multimodal queries, and be aided by automatic, adaptive summarizations of very large amounts of video from heterogeneous distributed sources. His research interests focus on the convergence of multimedia processing, information visualization, and digital library research. He has worked with digital video since its inception in 1987 and received his PhD from Georgia Tech in 1991, with his thesis examining digital video interfaces for software engineering training.
Speaker's Website
http://www.cs.cmu.edu/~christel