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1. (WO2018084970) RESTORATION IN VIDEO CODING USING FILTERING AND SUBSPACE PROJECTION

Pub. No.:    WO/2018/084970    International Application No.:    PCT/US2017/054354
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Sat Sep 30 01:59:59 CEST 2017
IPC: H04N 19/117
H04N 19/46
H04N 19/136
H04N 19/174
H04N 19/80
H04N 19/86
Applicants: GOOGLE LLC
Inventors: MUKHERJEE, Debargha
Title: RESTORATION IN VIDEO CODING USING FILTERING AND SUBSPACE PROJECTION
Abstract:
Restoring a degraded frame resulting from reconstruction of a source frame is described. A method includes generating, using first restoration parameters, a first guide tile for a degraded tile of the degraded frame, determining a projection parameter for a projection operation, and encoding, in an encoded bitstream, the first restoration parameters and the projection parameter. The projection operation relates differences between a source tile of the source frame and the degraded tile to differences between the first guide tile and the degraded tile.