Patent ID: 9286660
Filing Date: 2016-03-15
CPC Classification: G06T,H04N

Claim Text:
1. A filtering device, comprising: a dividing unit configured to divide a first filtering window into a plurality of blocks; a determining unit configured to determine a filtering window area according to relevance between a central block and other non-central blocks in the plurality of blocks; and a filtering unit configured to perform filtering processing on an image in the determined filtering window area; wherein the determining unit comprises: a calculating module configured to calculate a relevance parameter of each of the plurality of blocks; a comparing module configured to compare a relevance parameter of each of the non-central blocks in a predetermined direction of the central block with a relevance parameter of the central block according to the result of calculation of the calculating module; and a determining module configured to determine whether the non-central blocks are related to the central block according to the result of comparison of the comparing module, and excluding non-central blocks of rows and/or columns where boundary blocks are located and their peripheral non-central blocks from a range of the filtering window area by taking non-central blocks unrelated to the central block as the boundary blocks.