Available Technology

Rendering three-dimensional streak tube imaging lidar (STIL) data to two-dimensional contrast and range mappings thereof

A rendering method converts three-dimensional streak tube imaging lidar (STIL) data to two-dimensional contrast and range maps thereof. A temporal portion of the STIL data is processed for each pixel of the three-dimensional image. Each temporal portion includes a Gaussian-like portion and non-Gaussian-like portions. Processing for each pixel includes: (i) removing noise from the temporal portion using the non-Gaussian-like portions wherein a filtered form of the Gaussian-like portion is formed, (ii) determining a non-integer center of mass of the filtered form of the Gaussian-like portion with the non-integer center of mass being indicative of a range value, and (iii) applying a mathematical interpolation function to determine amplitude of the filtered form of the Gaussian-like portion at the range value defined by the non-integer center of mass. The amplitude so-determined is indicative of a contrast value. The process is repeated for all pixels to thereby produce range and contrast maps.
Inventors: 

Andrew J. Nevis

James F. Bryan

Mary C. Hulgan

Brett W. Cordes

James S. Taylor

Patent Number: 
US7215826
Patent Issue Date: 
June 8, 2007
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