Personal Communication

Andrew Senior

I am a Research Staff member at IBM's T.J.Watson Research Center in Yorktown Heights, New York.

I work in the Exploratory computer vision and pattern recognition group.

Current work

As part of the PeopleVision project I am currently working on visual person tracking, and ways that computer vision can enhance video privacy. In particular I've worked on our systems for tracking people that have been presented at the PETS workshops (see papers). Here's an example of tracking people through occlusions from the PETS2002 data:
PETS data occlusion fr 554 PETS data occlusion fr 575 PETS data occlusion fr 590 PETS data occlusion fr 616
The identity is maintained throughout the sequence, and we are continuously able to segment the image to determine which pixels belong to which person throughout.
I'm also working on fitting articulated models to video. This shows a still from the middle of a video constructed from the CMUMobo dataset, showing a person walking on a treadmill, from two different viewpoints. The coloured regions show the current fit of the model to the data. Click on the image for a video of automatic tracking (27MB AVI). person model fit to 2 view video data

Publications & Patents

A complete list of my publications and patents in speech, audio-visual speech, handwriting, fingerprint and face recognition.

Biography

2001- Research on visual person tracking in the PeopleVision project (above)
1996- Research on Biometric identification (face and fingerprint recognition). In particular I worked on fingerprint classification and distortion, and have written IBM's face detection, tracking and recognition system. This this is used as the visual side of the audio-visual speech recognition engine.
1994-6 Member of IBM's Handwriting Recognition Group, working on algorithms for on-line cursive handwriting recognition - getting computers to recognize handwriting written on a computer with an electronic stylus.
1991-4 Ph.D. (1994) Cambridge University Engineering Department's Speech, Vision and Robotics Group.
My thesis `Off-line Handwriting Recognition Using Recurrent Neural Networks' was also about handwriting recognition, though this time recognizing handwriting scanned from sheets of paper, and using recurrent neural networks.
1990-1 Ingénieur de récherche at Laboratoire d'Informatique et Méchanique pour les Sciences de l'Ingénieur (LIMSI) in the Université de Paris Sud. There I worked on the European POLYGLOT project for continuous speech recognition using hidden Markov Models.
1987-90 MA in Mathematics and Electrical & Information Sciences, Trinity Hall, Cambridge University

Professional activities

Personal

For more on me, my sculptures, photographs and so on, see andrewsenior.com
Email me at: awsATwatson.ibm.com


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