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[Project image] Template Update
This project is no longer active.

Head: Simon Baker
Contact: Iain Matthews (iainm@cs.cmu.edu (Currently On Leave))

Mailing address:
Carnegie Mellon University
Robotics Institute
5000 Forbes Avenue
Pittsburgh, PA 15213

Associated center: VASC
Associated labs/groups: Vision for Safe Driving and Face Group

Jump to: Project Description | Personnel | Publications

Project Description

Template tracking is a well studied problem in computer vision which dates back to the Lucas-Kanade algorithm of 1981. Since then the paradigm has been extended in a variety of ways including: arbitrary parametric transformations of the template, and linear appearance variation. These extensions have been combined, culminating in non-rigid appearance models such as Active Appearance Models (AAMs) and Active Blobs. One question that has received very little attention is how to update the template over time so that it remains a good model of the object being tracked. This research proposes an algorithm to update the template that avoids the "drifting" problem of the naive update algorithm. Our algorithm can be interpreted as a heuristic to avoid local minima. It can also be extended to templates with linear appearance variation. This extension can be used to convert (update) a generic, person-independent AAM into a person specific AAM.

The following MPEG movies demonstrate the algorithm:

  1. car-exp.mpg
  2. car-track.mpg
  3. face-app.mpg
  4. face-gt.mpg

Past members

Name Title Email Address
Simon Baker Adjunct Faculty (Adjunct)
Takahiro Ishikawa Visiting Industrial Scholar
Iain's personal homepage Iain Matthews Senior Systems Scientist iainm@cs.cmu.edu (Currently On Leave)

Publications

Note: This list may not be comprehensive. It contains only those publications in the RI publications database. Entries are listed in reverse chronological order.

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