In order to solve the problem of significant ghost phenomenon produced in image mosaic results caused by moving objects occur in image sequence, an improved method which is mainly used to eliminating of ghosting is proposed.With this method, after SIFT feature points clustering algorithm is employed, the geometric similarity relation between matching pairs is used to eliminate feature points on moving object, thus accurate feature point matching pairs filtered out. After eliminating cumulative errors, use three frames difference method to extract the background of the previous N-1 frames and fuse them together, then match the last frame with it to produce the final panoramic mosaic image. The result shows that the improved method can efficiently remove the ghost occur in the panoramic images and keep the moving information of the last frame.

moving object extraction; feature points clustering; image mosaic; ghost removing