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1. (WO2017156465) PERSPECTIVE CORRECTION FOR CURVED DISPLAY SCREENS

Pub. No.:    WO/2017/156465    International Application No.:    PCT/US2017/021923
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Sat Mar 11 00:59:59 CET 2017
IPC: G09G 3/00
H04N 17/00
Applicants: NETFLIX, INC.
Inventors: RUSSELL, Michael
Title: PERSPECTIVE CORRECTION FOR CURVED DISPLAY SCREENS
Abstract:
One embodiment of the present invention sets forth a technique for performing perspective correction on one or more test images. The technique includes analyzing a first test image to detect a set of outer points and calculating a geometric plane equation based on the set of outer points. The technique further includes projecting a first set of points associated with a first curved screen model based on the geometric plane equation to generate a second set of points. The technique further includes comparing the second set of points to a set of inner points included in the first test image to determine at least one error value, and determining a screen curvature value based on the at least one error value.