| 摘要 |
A picture decoding apparatus decodes a series of coded frames, each including a temporal reference. Past temporal references are used to estimate the temporal reference of the-current frame. If the temporal reference differs greatly from the estimated value, it is modified according to the estimated value. A coded frame may be divided into segments, each segment having its own temporal reference. In this case, the temporal references received in one coded frame are stored and compared, and a single temporal reference is selected for the coded frame. As a result, temporal-reference errors do not seriously disrupt the timing of the decoded picture.
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