Approach on Moving Target Automatic Tracking Based on Optical Flow and Level Set

Through the analysis of the characteristics of the sequence image about the flying helicopter in the sky,an automatic tracking approach on the moving target is proposed based on the optical flow and level set model.The character images are obtained through the image preprocessing by the high pass filter.The optical flow of the moving target is solved by using the character image.The moving area is segmented with the optical flow.Then the center and the radius of the moving area can be obtained.The circularity with the center and the radius is taken as the initial curve of level set.Chan and Vese model is modified by outside force of curve evolution which is obtained by the speed of the optical flow.The images are segmented by using the modified Chan and Vese model.It is demonstrated that the moving target can be tracked automatically,rapidly,accurately with the method.