johnb@cs.berkeley.edu
John is a Graduate Student Researcher (RA to the rest of the world) in the CS Division at the University of California at Berkeley.
After overseeing the death of the Picasso Graphical User Interface Development Environment project, John decided to work on something constructive. He is currently working on the Berkeley Distributed Video-on-Demand Server. Since he gets the blame when the demos don't work, he must have an important role.
John is currently investigating video content analysis, specifically, detecting shot and scene boundaries using statistics generated from the video and audio streams of digital video.
This paper presents a comparison of several shot boundary detection and classification techniques and their variations including histograms, discrete cosine transform, motion vector, and block matching methods. The performance and ease of selecting good thresholds for these algorithms are evaluated based on a wide variety of video sequences with a good mix of transition types.
This paper describes the design of the metadata database that contains indexes into video objects and a GUI query interface to the database.
When not at work, John spends time at home with his wife Kristine Konrad, his children Chance and Jack, his cats Fritz and Cyber, and a couple million Lego bricks.
Other info:
Back to Plateau Research Group.