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Stereo Depth Distortions in Teleoperation

AUTHOR Nasa, National Aeronautics and Space Adm
PUBLISHER Independently Published (11/01/2018)
PRODUCT TYPE Paperback (Paperback)

Description
In teleoperation, a typical application of stereo vision is to view a work space located short distances (1 to 3m) in front of the cameras. The work presented here treats converged camera placement and studies the effects of intercamera distance, camera-to-object viewing distance, and focal length of the camera lenses on both stereo depth resolution and stereo depth distortion. While viewing the fronto-parallel plane 1.4 m in front of the cameras, depth errors are measured on the order of 2cm. A geometric analysis was made of the distortion of the fronto-parallel plane of divergence for stereo TV viewing. The results of the analysis were then verified experimentally. The objective was to determine the optimal camera configuration which gave high stereo depth resolution while minimizing stereo depth distortion. It is found that for converged cameras at a fixed camera-to-object viewing distance, larger intercamera distances allow higher depth resolutions, but cause greater depth distortions. Thus with larger intercamera distances, operators will make greater depth errors (because of the greater distortions), but will be more certain that they are not errors (because of the higher resolution). Diner, Daniel B. and Vonsydow, Marika Jet Propulsion Laboratory...
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Product Details
ISBN-13: 9781730710308
ISBN-10: 1730710301
Binding: Paperback or Softback (Trade Paperback (Us))
Content Language: English
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Page Count: 60
Carton Quantity: 68
Product Dimensions: 8.50 x 0.12 x 11.02 inches
Weight: 0.36 pound(s)
Country of Origin: US
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BISAC Categories
Science | Space Science - General
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In teleoperation, a typical application of stereo vision is to view a work space located short distances (1 to 3m) in front of the cameras. The work presented here treats converged camera placement and studies the effects of intercamera distance, camera-to-object viewing distance, and focal length of the camera lenses on both stereo depth resolution and stereo depth distortion. While viewing the fronto-parallel plane 1.4 m in front of the cameras, depth errors are measured on the order of 2cm. A geometric analysis was made of the distortion of the fronto-parallel plane of divergence for stereo TV viewing. The results of the analysis were then verified experimentally. The objective was to determine the optimal camera configuration which gave high stereo depth resolution while minimizing stereo depth distortion. It is found that for converged cameras at a fixed camera-to-object viewing distance, larger intercamera distances allow higher depth resolutions, but cause greater depth distortions. Thus with larger intercamera distances, operators will make greater depth errors (because of the greater distortions), but will be more certain that they are not errors (because of the higher resolution). Diner, Daniel B. and Vonsydow, Marika Jet Propulsion Laboratory...
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Paperback