| 摘要 |
The invention concerns a method ( 200, 300 ) and system ( 100 ) for performing a trick mode on a video signal containing a plurality of original pictures. The method includes the steps of receiving a trick mode command ( 212, 312 ) and selectively inserting ( 214, 324 ) at least one dummy bidirectional predictive picture in the video signal using field-based prediction to form a trick mode video signal. In one arrangement, each dummy bidirectional predictive picture can be a one-directional predicted picture, and the method can further include the step of predicting each dummy bidirectional predictive picture from a reference picture. In another arrangement, the predicting step can further include predicting each dummy bidirectional predictive picture from a single field associated with the reference picture. |
