25-01-2012, 04:56 PM
High-Resolution Three-Dimensional Sensing of Fast Deforming Objects
[attachment=16612]
Motivations
Considerable research on sensing 3D geometry of objects
Focused on rigid objects and static scenes
Moving and deforming objects found in many applications
Motivational Applications
Navigation in dynamic environments
Object recognition
Human tissue modeling for surgical simulation and planning
Robotic manipulation of fabric and rope
Limitations of Existing Methods
Requires scene be rigid and not moving
Laser scanner
Requires non-repeating texture
Stereo vision
Applied to deforming cloth (Pritchard and Heidrich)
Requires known scene topology and known anchor points
Sinusoids / Moiré gratings
Requires multiple frames
Restricts movement
Spacetime Stereo (Davis, Ramamoothi, and Rusinkiewicz)
Stripes
In single frames, spatial resolution does not scale due to fixed number of encodings
