Statistics – Computation
Scientific paper
Sep 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pgers..53.1219e&link_type=abstract
Photogrammetric Engineering and Remote Sensing (ISSN 0099-1112), vol. 53, Sept. 1987, p. 1219-1222.
Statistics
Computation
2
Computer Aided Mapping, Digital Techniques, Geometric Rectification (Imagery), Image Processing, Planetary Mapping, Coordinate Transformations, Data Bases, Ground Based Control, Mosaics, Spaceborne Photography, Planets, Image Processing, Remote Sensing, Cartography, Computer Methods, Cameras, Procedure, Technique, Spacecraft Observations, Diagrams, Imagery, Photographs
Scientific paper
New procedures and software have been developed for geometric transformation of images to support digital cartography of the planets. The procedures involve the correction of spacecraft camera orientation of each image with the use of ground control and the transformation of each image to a Sinusoidal Equal-Area map projection with an algorithm which allows the number of transformation calculations to vary as the distortion varies within the image. When the distortion is low in an area of an image, few transformation computations are required, and most pixels can be interpolated. When distortion is extreme, the location of each pixel is computed. Mosaics are made of these images and stored as digital databases. Completed Sinusoidal databases may be used for digital analysis and registration with other spatial data. They may also be reproduced as published image maps by digitally transforming them to appropriate map projections.
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