| 摘要 |
The present invention concerns a method of detecting blocking artifacts (10) from video data coded and then decoded according to a block coding technique. Said method comprises the steps of calculating a first discrete transformation (1) of a first video data segment (11), calculating a second discrete transformation (2) of a second video data segment (12), said second segment being adjacent to the first segment, and calculating a discrete transformation (4) of a concatenated video data segment (13) corresponding to the concatenation (3) of the first and second segments. It also comprises a step of calculating (5) a blocking artifact level (17) from the content of the first and segments of transformed video data (14, 15), and the concatenated segment of transformed video data (16). In this way a very precise blocking artifact detection method is obtained, able to be used in a post-processing or coding of the video data.
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