METHOD FOR EVALUATING THE CENTERLINE OF AN ARBITRARILY SHAPED OBJECT

摘要

A method for calculating a centreline of an object is disclosed. An image of the object is divided into test areas. For each test area, detection direction and scanning direction are assigned from a list of limited directions. For each test area, at each scanning point a local point of the centreline is determined along the detection direction. An assigned smoothing function is applied to the collection of local points to determine the collection of pixels which define the centreline. The collection of pixels can be used to calculate the length of the centreline. Also, the coordinates of the pixels of the centreline can be used to average the intensity of the image along the centreline.