Spatially Accurate Aerial Oblique Views

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Spatially Accurate Aerial Oblique Views?
Presented By Steven Gilkey 10900 73Rd. Av N.
Suite 136 Maple Grove, MN 55369 763-493-9320 Gilke
y_at_geospan.com
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Sample Camera Specifications
 
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Aerial Oblique Data Capture Map for the City of
Chicago

• Flight lines approximately 700 feet apart
• Pictures captured every two (2) seconds
• Ground footprint of approximately 1100 feet by
  1100 feet at 1000 feet above the ground.

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Map View
Right Camera
Flight Paths
Subject Property
Back Camera
Front Camera
Down Camera
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Down Camera
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Back Camera
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Front Camera
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Right Camera
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Right Camera
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Right Camera
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Back Camera
192Feet
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Back Camera
Surface Area 6,512 Square feet
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Coordinate Extraction Tools   GPS coordinate
extraction is accomplished by simply selecting
the same pixel location in two (2) images


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Direct Image Photogrammetric Measurement

• The science of establishing the precise camera
  location and calibration for a given camera image
  to determine the 3D location of image pixels (US
  Patent 5,633,946).
• An image pixel is a ray that begins at the focal
  point of the camera and is captured at the camera
  image plane.
• The 3D location is determined by intersecting the
  rays from multiple images or can be determined by
  intersecting a single ray with a known ground
  plane.

Oblique Imagery (Not Stereo) Photogrammetric
Measurements
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Next Generation Oblique Photogrammetry
Volumetric Imaging
Oblique Images
Cylispheric Transformed Stereo Images
The Key to Accurate Photo-realistic 3D Models and
Orthophotography

• Autocorrelation provides hundreds instead of just
  a few common points to refine interior and
  exterior camera calibration parameters improving
  accuracy to meet national map accuracy standards
• Automates the creation of photo-realistic 3D
  models
• Accurate Orthophotos become a by-product of the
  3D model (top down view)

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Right Camera
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Right Camera
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Right Camera
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Right Camera
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Right Camera
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Right Camera
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Left Camera
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Left Camera
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Left Camera
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Left Camera
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Back Camera
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Back Camera
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Back Camera
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Front Camera
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Front Camera
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Front Camera
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Internet Access Examples
Residential property Oblique aerial and
street-level St. Paul residential property Tax
Map and Google Map Integration Enter Address
9212 S Longwood Zip 60620
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Viewer

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Integrated Aerial Oblique and Street-Level Imagery
1-800-GEOSPAN