Patent ID: 8412480
Filing Date: 2013-04-02
Classification: G01S,G06T

Abstract:
1. A method for determining installed angle of image acquiring apparatus, comprising steps of: arranging an image acquiring apparatus on a carrier within a predetermined angular range; acquiring an image of a calibrating tool by the image acquiring apparatus, wherein the image acquiring apparatus is disposed on the carrier by an angular stationary device so that the imaging acquiring apparatus is capable of being installed within the predetermined angular range; calculating a position of a feature of the image with respect to the calibrating tool according to an image coordinate system and a characteristic value of the feature of the calibrating tool associated with a spatial coordinate system; and performing an iterative angle-calculating procedure according to the position and the characteristic value for obtaining an installed angle of the image acquiring apparatus, wherein the iterative angle-calculating procedure comprises steps of: wherein the characteristic value is a numerical difference derived from the coordinate position of the upper horizontal boundary associated with the calibrating tool and the lower horizontal boundary associated with the calibrating tool, and the relation is defined as:  where S