Tracking algorithms using log-polar mapped image coordinatesThe use of log-polar image sampling coordinates rather than conventional Cartesian coordinates offers a number of advantages for visual tracking and docking of space vehicles. Pixel count is reduced without decreasing the field of view, with commensurate reduction in peripheral resolution. Smaller memory requirements and reduced processing loads are the benefits in working environments where bulk and energy are at a premium. Rotational and zoom symmetries of log-polar coordinates accommodate range and orientation extremes without computational penalties. Separation of radial and rotational coordinates reduces the complexity of several target centering algorithms, described below.
Document ID
19910034885
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Weiman, Carl F. R. (Transitions Research Corp. Danbury, CT, United States)
Juday, Richard D. (NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1990
Subject Category
Cybernetics
Meeting Information
Meeting: Intelligent Robots and Computer Vision VIII: Algorithms and Techniques