Edge detection of IVUS images based on a temporal/spatial filtering noise suppressing algorithm and the active contour model
LI Qian-na · Journal of Shandong University · 2006
Blood speckle noise in the IVUS image would affect the validity of edge detection badly.A temporal/spatial filtering method was used to preprocess the IVUS image to restrain the noise.Then a method to automatically detect the intima and ectoblastic edge of IVUS image was presented. This method is based on the active contour model(Snakes model) and the contrast properties of IVUS image,which makes use of the Hopfield NN and simulated annealing algorithm.Experiments show that the method is accurate,repeatable and robust for sequential IVUS frames.