The Affine Transformations of Images and Its Application

Abstract

The purpose of this study was to investigate how to find the conjugate pairs and affine transformation between two images We used gradient descent method to find the conjugate pairs of two images If there are more than three conjugate pairs of two images we can use least squares method by these conjugate pairs to find the affine transformation between two images Another aim was to find out how to determine where the protrusion was Since the affine transformation of background is different from the affine transformation of the surface of the protrusion we used this property to determine where the protrusion was Then we did the experiment to verify that the affine transformation of background is different from the affine transformation of the surface of the protrusion and used the property to determine where the protrusion was Finally we concluded that the closer camera is to the background the more different the affine transformation of background and surface of the protrusion are if the protrusion has fixed height

Date of Award	2020
Original language	English
Supervisor	Shih-Yu Shen (Supervisor)