Abstract
The paper addresses the problem of the automatic distortion removal from
images acquired with non-metric SLR camera equipped with prime lenses. From the
photogrammetric point of view the following question arises: is the accuracy of distortion
control data provided by the manufacturer for a certain lens model (not item) sufficient
in order to achieve demanded accuracy? In order to obtain the reliable answer to the
aforementioned problem the two kinds of tests were carried out for three lens models.
Firstly the multi-variant camera calibration was conducted using the software
providing full accuracy analysis. Secondly the accuracy analysis using check points took
place. The check points were measured in the images resampled based on estimated
distortion model or in distortion-free images simply acquired in the automatic distortion
removal mode.
The extensive conclusions regarding application of each calibration approach
in practice are given. Finally the rules of applying automatic distortion removal in
photogrammetric measurements are suggested
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