| 摘要 |
<p>Device for encoding sequences of frames constituted by film-type images and video-type images, and corresponding decoding device. A device of this type provides the possibility of encoding sequences of frames constituted by video-type images of a first frequency (for example, 30 Hz) and film-type images whose original frequency is lower than this first frequency (for example, 24 Hz) and which are converted by means of the "3:2 pulldown" technique. This encoding device comprises: - means (53, 56, 57) for detecting the sequences of film-type images from the stream of input data, - a device (58) for preprocessing these sequences for realising an inverse conversion of the frequency by eliminating, before encoding, the redundant information introduced by the use of the "3:2 pulldown" method. Application: Transmission of film-type images on American or Japanese television systems operating at 60 Hz. Reference: Fig. 8.</p> |
