Computing Motions of (Locally) Planar Surfaces from Spatio-Temporal Changes in Image Brightness: A Note

Abstract

The motion at a locus on the projection surface cannot be obtained locally from spatio-temporal changes in image intensity at that locus. If the imaged surfaces are (locally) planar, however, and generate a set of non- parallel straight line edges in the image, it is possible to obtain estimates of image velocities of a set of image points corresponding to the intersections of the lines. The availability of such a (small set is sufficient to resolve the underlying optical flow into its translational and rotational components.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1981
Accession Number
ADA124341

Entities

People

  • K. Prazdny

Organizations

  • University of Maryland

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Artificial Intelligence
  • Brightness
  • Change Detection
  • Computational Science
  • Computations
  • Computer Science
  • Computer Vision
  • Detection
  • Displacement
  • Image Processing
  • Intensity
  • Night Vision
  • Orientation (Direction)
  • Relative Motion
  • Statistical Samples
  • Universities

Fields of Study

  • Computer science

Readers

  • Control Systems Engineering.
  • Fluid Dynamics.
  • Optical Physics and Photonics.