Design and Feasibility Study of an Off-Line Digital Orthoprinter for Field Use.
Final rept. 30 Aug 77-30 Apr 78.
EIKONIX CORP BURLINGTON MA
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A van-mounted off-line orthoprinter suitable for field use is required. A digital orthoprinter provides a simpler and more rugged system design compared to the complex and sensitive hardware systems commercially available. This program was performed to evaluate the feasibility of an off-line digital orthoprinter that provides the required ruggedness and the speed and accuracy for orthophotos. In pursuance of this program EIKONIX formulated a system concept that employs a drum scanner writer for the vanmounted digital orthoprinter. Available rectiffication and differential rectification algorithms were implemented during this program to evaluate distortion parameters expected from camera systems. These distortion parameters were required inputs for design of the drum scanner with a solid state linear array. This work demonstrates that the digital, drum scanner design approach meets the objectives for orthophoto production in the field. Author