公开(公告)号：US20180048910A1

公开(公告)日：2018-02-15

申请号：US15790314

申请日：2017-10-23

Applicant: Nokia Technologies Oy

Inventor： Ossi Kalevo ,  Emre Aksu ,  Marta Karczewicz

IPC: H04N19/527 ,  H04N19/86

CPC classification number: H04N19/527 ,  H04N19/86

Abstract: The application relates to a method for reducing visual artefacts in a frame of a digital video signal, which is coded by blocks and then decoded. A block type is defined according to the coding method for a block selected according to a predetermined set of coding types. In the method filtering is performed to reduce visual artefacts due to a block boundary. The filtering performed depends on block types of the frame in the environment of the block boundary.