Patent ID: 7995849
Filing Date: 2011-08-09
Classification: G06T,H04N

Abstract:
1. A method of processing images compressed using block based compression, comprising: using a processor or computer to perform the steps of: determining whether two blocks of pixels are neighboring blocks; determining whether the two neighboring blocks are both subdivided, if it is determined that the two blocks are neighboring blocks; performing deblocking filtering on one or more edge pixels of the two neighboring blocks, after determining that at least one of the two neighboring blocks is not subdivided; using a first deblocking filter on one or more edge pixels of the two neighboring blocks if only one of the two neighboring blocks is subdivided; obtaining one or more difference values of one or more edge pixels of the two neighboring blocks, if neither of the two neighboring blocks is subdivided; comparing the one or more difference values to a second threshold; selecting a second deblocking filter based on the comparison of the one or more difference values to the second threshold; and using the second deblocking filter on one or more edge pixels of the two neighboring blocks if neither of the two neighboring blocks is subdivided.