| 摘要 |
<p>In a method for converting an input video sequence (SV), comprising digital images (305, 305') organized in frames and operating at a variable frame-rate (v), into an output video sequence (SC), operating at a preset constant frame-rate (c), it is envisaged to store (215) the input video sequence (SV) temporarily and to control fetching of images (305, 305') of said temporarily stored input video sequence (SV). The invention moreover envisages:
controlling (220) fetching of images (305, 305') from the temporarily stored input video sequence (SV) by adjusting an emptying rate (f) to form an intermediate video sequence (SF); and
carrying out an operation of motion-compensated interpolation (225) on the intermediate video sequence (SF) to form the output video sequence (SC) operating at a pre-set constant frame-rate (c), the emptying rate (f) being adjusted (220) as a function of a number (b; b1) of images of the input video sequence (SV) with variable frame-rate (v) temporarily stored (b; b1). Preferential application is in the reproduction of video sequences in mobile terminals, with the capacity of audio-video conversation, for example for videoconferences.</p> |
