OST offers a comprehensive selection of premium services and products, including:
| Digital Orthophoto | Photogrammetric Mapping |
| Aerial Photography | Digital Terrain Modeling |
| Survey Control Planning | CAD Services |
Digital Orthophoto
Digital Orthophotos are images that have been digitally scanned and then corrected using Digital Terrain Models (DTM) such that everything is accurately positioned. Resolution is dependant on the pixel size, as shown in the following images:
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| Safford 1/4 ft.pixel | Safford 1/2 ft. pixel | San Pedro 1 ft. pixel |
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| Borax Mine 3 ft. pixel | Larimer Landfill | Phelps-Dodge Oblique |
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Photogrammetric Mapping
Photogrammetric Mapping (or Photometry) is an art and science of making measurements in three dimensions.
| Click thumbnails to view a larger image | |
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| Safford Digital Terrain Model |
Safford Plan Model |
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| San Pedro Digital Terran Model |
San Pedro Plan Model |
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Aerial Photography
Our
aerial photos are acquired with ultra-precise gyro-stabilized cameras by LH Systems (Leica) or Zeiss. Both
systems provide low resolution distortion (+/- 2um), and utilize advanced Forward Motion Compensation (FMC) technology. After processing, 9” x 9” contact prints are delivered in color
or black and white, depending on the client’s requirements.
These camera
systems are typically mounted aboard single-engine Cessna 206 or twin-engined Piper Navajo PA-31 aircraft (shown at right) equipped with the latest Global Positioning System (GPS) and other sophisticated
navigational avionics to enable precise grid tracking and automated imaging coverage.
Digital Terrain Mapping
DTM comprises large amounts of collected data that is used to generate topographic or contour maps, including breaklines, mass points, spots and planimetric features.
Survey Control Planning
These services involve planning and placement of control points within a reliable framework in reference to the surrounding terrain. This data is provided to surveyors for establishing the vertical and horizontal coordinates used for Digital Terrain Model mapping.
CAD Services
Our advanced CAD services include contour generation from Digital Terrain Mapping acquired from the stereo models. We also provide precision editing, patterning data, quality control, translating contour and planimetrics according to our client’s exact specifications.
