Experimental Verification of Image Perturbation Theory as Applied to the Accuracy of Area Measurement
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Date
1992-02
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Addis Ababa University
Abstract
photosensitive array, with inter-element spacing of & = 3cm
is described. A mathematical formulation of perturbation
applied to length & area measurement and contour detection is
reviewed and presented. A description of the proposed
experimental system is given. An area measurement error is
defined and applied to the projected object images. It is
found that static images (no perturbation) produces
considerable error. It is then found that the applJlcation of
a one dimensional sinusoidal image perturbation greatly
reduces the area measurement error, while triangular image
perturbation is optimum and theoretically results in zero
error. Some practical applications of tbe system are
suggested.
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Keywords
measurement system