Tracking Deforming Objects using Particle Filtering for Geometric Active Contours
Tannenbaum, Allen R.
MetadataShow full item record
Tracking deforming objects involves estimating the global motion of the object and its local deformations as a function of time. Tracking algorithms using Kalman filters or particle filters have been proposed for finite dimensional representations of shape, but these are dependent on the chosen parametrization and cannot handle changes in curve topology. Geometric active contours provide a framework which is parametrization independent and allow for changes in topology. In the present work, we formulate a particle filtering algorithm in the geometric active contour framework that can be used for tracking moving and deforming objects. To the best of our knowledge, this is the first attempt to implement an approximate particle filtering algorithm for tracking on a (theoretically) infinite dimensional state space.
Showing items related by title, author, creator and subject.
Patnaik, Rohit; Vandrasi, Vivek; Madsen, Christi K.; Eftekhar, Ali Asghar; Adibi, Ali (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers ; Optical Society of America, 2010-12)We examine the use of different high-level filter architectures (cascade, lattice, and parallel). We discuss their advantages and disadvantages, and we present simulation results and filter-tolerance tests. This information ...
Finite element model updating through sum-of-squares (SOS) optimization and constrained Kalman filters Li, Dan (Georgia Institute of Technology, 2020-03-16)Finite element (FE) modeling techniques optimize model parameter values for improving the predication accuracy of a numerical model. This research investigates algorithms utilizing the frequency-domain modal properties and ...
Gee, Wesley Albert (Georgia Institute of Technology, 2005-07-15)In wireless transceiver circuits some of the most prevalent required off-chip components are discrete filters. These components are generally implemented with surface acoustic wave (SAW) or ceramic components. These devices ...