Moving cell contour tracking is very important in the field of cellbiology application. Snake Model becomes the main method of thetechnology because of its flexibility and acquisition to the continuous linesfor expression. In order to overcome the shortcomings of Basic Snake Model,this dissertation devises the Renovation Method. On the base of measures toexpand External Energy's range, strengthen External Energy as well as battleagainst noises, this dissertation proposes and applies a new Dynamic ExternalForce. The direction of Dynamic External Force is defined and the magnitudeis designed so that the contour points can be guided to move toward the realobject boundary. The devise of Dynamic External Force is reasonable and haslow computation cost. So we adopt the Dynamic Programming algorithm,which generates multiple candidates to the sub-problems, and this guaranteesthe final result to be the best one of the original problem. The reformed DPalgorithm incarnates the simulated. The experiments show that the improvedmodel has superior speed, high precision tracking and important practicalsignificance. |