FULL-RANGE IMAGE DETECTING SYSTEM AND METHOD THEREOF

摘要

A full-range image detecting system including a planar light source, an image capturing device, a light sensing device, a processing unit and a measuring module is provided. The planar light source projects a photo image with periodical variations onto an object. The image capturing device captures a reflective photo image reflected from the object. The light sensing device detects the coordinates of at least three measuring points on the object for fitting a plane. The processing unit calculates a phase variation of the reflective photo image after phase shift, a relative altitude of the surface profile of the object according to the phase variation, and an absolute altitude of the surface profile of the object with respect to the plane to obtain an information of absolute coordinate. The measuring module detects the surface of the object according to the information of absolute coordinate of the object.

主权项

1. A full-range image detecting system, comprising:
a planar light source projecting a photo image with periodical variations onto an object; an image capturing device capturing a reflective photo image reflected from the object; a light sensing device detecting coordinates of at least three points on the object for fitting a plane; a processing unit calculating a phase variation of the reflective photo image after phase shift, a relative altitude of the surface profile of the object according to the phase variation, and an absolute altitude of the surface profile of the object with respect to the plane to obtain an information of absolute coordinate of the object; and a measuring module detecting the surface of the object according to the information of absolute coordinate of the object.