The Research Of The Object Edges' Precision Location In Images And Its Application In Dimension Measuring

Image Measurement Technique is based on modern optics, integrated withmodern measuring technology such as photoelectricity,information processing,computer vision etc. It is to measure target objects by using images to transmitinformation, Its purpose is to draw the useful information from the images. ImageMeasuring Technique includes vediometrics ,optical measuring and sensormeasuring ,which used in many fields such as appearance measuring,industrymeasuring and biomedicine etc.This subject is mainly the precision-measurement to the plane interval in theway of image analyze and image manipulation. The CCD's visual field horizontalview is 100mm. The dimension of these pictures is 640×480 (pixels). Thefollow picture is about the experiment system.