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Evaluation of digitally corrected ERTS imagesThe discussion is limited to processes by which a set of data samples collected on a geometrically distorted grid can be converted to samples on a different precisely specified grid. It is assumed that a mathematical expression for the desired transformation already exists. Concern will be the effects on image quality (specifically loss of resolution, photometric accuracy, and miscellaneous aberations) that result from various techniques used in accomplishing the resampling. The resampling techniques evaluated have included nearest neighbor, bilinear, cubic convolution, and various truncated versions of sinc (x). The conclusion is that cubic convolution yields substantially higher quality output data for scenes typically encountered and can, in some instances, substantially enhance one's ability to abstract information.
Document ID
19740022711
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Taber, J. E.
(TRW Systems Group Redondo Beach, CA, United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1974
Publication Information
Publication: NASA. Goddard Space Flight Center 3d ERTS-1 Symp., Vol. 1, Sect. B
Subject Category
Computers
Report/Patent Number
PAPER-I10
Accession Number
74N30824
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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