Patent ID: 11882314
Assignee: MK SYSTEMS USA INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A computer-implemented method for measuring visual quality degradation of digital content caused by an encoding process, the method comprising:
storing, for each of a plurality of visual artefact types: a corresponding mapping from (i) quality metrics measuring visual quality degradation attributable to a given visual artefact type, measured on an objective basis, to (ii) quality metrics measuring visual quality degradation attributable to the given visual artefact type, which approximate subjective assessment by a human visual system;
for a given one of the plurality of visual artefact types:
processing first data and second data to obtain a first quality metric measuring visual quality degradation in a digital content item attributable to the given visual artefact type caused by the encoding process, the first data and the second data corresponding to a digital content item, the first data not encoded by the encoding process, the second data encoded by the encoding process, wherein the first quality metric is an objective metric; and
applying the mapping, corresponding to the given visual artefact type, to the first quality metric to output a second quality metric, wherein the second quality metric measures visual quality degradation in the digital content item attributable to the given visual artefact type caused by the encoding process and approximates subjective assessment of the digital content item by the human visual system, wherein the second quality metric is a subjective metric; and

for at least one other given one of the plurality of visual artefact types, repeating said processing and said applying to output at least one other second quality metric corresponding to the at least one other given one of the plurality of visual artefact types.