Recovery of Piece-Wise Planar and Piece-Wise Rigid Models from Non-Rigid Motion

Abstract

We present a framework for estimating 3D relative structure (shape) and nation given objects undergoing non-rigid deformation as observed from a fixed camera, under perspective projection. Deforming surfaces are approximated as piece wise planar, and piece wise rigid. Robust registration methods allow tracking of corresponding image patches from view to view and recovery of 3D shape despite occlusions, discontinuities, and varying illumination conditions. Many relatively small planar/rigid image patch trackers are scattered throughout the image; resulting estimates of structure and motion at each patch are combined over local neighborhoods via an oriented particle systems formulation. Preliminary experiments have been conducted on real image sequences of deforming objects and on synthetic sequences where ground truth is known.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1999
Accession Number
ADA366998

Entities

People

  • Jonathan Alon
  • Stan Sclaroff

Organizations

  • Boston University

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Algorithms
  • Computational Science
  • Computer Graphics
  • Computer Science
  • Computer-Aided Design
  • Computers
  • Coordinate Systems
  • Discontinuities
  • Equations
  • Illumination
  • Image Registration
  • Orientation (Direction)
  • Particles
  • Recovery
  • Simulations
  • Three Dimensional
  • Visualizations

Readers

  • Calculus or Mathematical Analysis
  • Image Processing and Computer Vision.
  • Mechanical Engineering/Mechanics of Materials.