| 摘要 |
<p>The present invention relates to a method of determining a corruption indication of a sequence (100) of encoded data frames distributed over a network, said data frames being encoded according to a predictive block-based encoding technique. Said method comprises the steps of:-decoding the sequence of encoded data frames so as to obtain a sequence of decoded data frames (200),-building a reliability map (210) including binary values based on the decoding step, a binary value being associated with a decoded data item in such a way that the binary value is equal to a first value (1) if its associated data item has not been decoded due to corruption or if said associated data item is predicted with reference to a reference data item that has not been decoded due to corruption, and to a second value (0) otherwise,-computing a corruption metric based on the binary values.</p> |
