Simple edge detection method for vascular tree angiogram

Vascular tree angiogram is an important tool for computer-aided diagnosis on the vascular disease. The vascular edge detection in the angiogram is an important step in the angiogram analysis and computer-aided diagnosis, which is the basis on the segmentation of angiogram. This paper studies an improved edge detection method based on several classical methods. The experiments demonstrate the improved method has good performance in angiogram edge detection. This method is easy to be used in the processing of angiogram.