This report presents stereo image theory and the corresponding image processing software developed to analyze stereo imaging data acquired for the wake-vortex hazard flight experiment conducted at NASA Langley Research Center. In this experiment, a leading Lockheed C-130 was equipped with wing-tip smokers to visualize its wing vortices, while a trailing Boeing 737 flew into the wake vortices of the leading airplane. A Rockwell OV-10A airplane, fitted with video cameras under its wings, flew at 400 to 1000 feet above and parallel to the wakes, and photographed the wake interception process for the purpose of determining the three-dimensional location of the trailing aircraft relative to the wake. The report establishes the image-processing tools developed to analyze the video flight-test data, identifies sources of potential inaccuracies, and assesses the quality of the resultant set of stereo data reduction.
[1]
Eric C. Stewart,et al.
Overview of the preparation and use of an OV-10 aircraft for wake vortex hazards flight experiments
,
1995
.
[2]
Brooks A. Childers,et al.
Video photographic considerations for measuring the proximity of a probe aircraft with a smoke seeded trailing vortex
,
1990
.
[3]
Azriel Rosenfeld,et al.
Computer Vision
,
1988,
Adv. Comput..
[4]
D Vicroy Dan,et al.
Characterizing the Hazard of a Wake Vortex Encounter
,
1997
.
[5]
Azriel Rosenfeld,et al.
Digital Picture Processing
,
1976
.
[6]
R.W. Ehrich,et al.
Computer image processing and recognition
,
1981,
Proceedings of the IEEE.