公开(公告)号：US20230156345A1

公开(公告)日：2023-05-18

申请号：US17769673

申请日：2020-10-13

Applicant: Connaught Electronics Ltd.

Inventor： Samantha Chalut ,  Patrick Denny ,  Brian Deegan

IPC: H04N23/745 ,  H04N23/667 ,  H04N23/71 ,  H04N23/73 ,  H04N23/741

CPC classification number: H04N23/745 ,  H04N23/667 ,  H04N23/71 ,  H04N23/73 ,  H04N23/741

Abstract: An image processing method comprises: performing a spectral analysis of a HDR image (220) to determine whether the HDR image (220) comprises spectral components indicative of a lighting of the scene by a modulated light source; analysing meta-data associated with a set of component images (221) for the HDR image to determine a difference between meta-data for one component image of the set and meta-data for at least one other component image of the set, any difference being indicative of an artefact caused by illumination of the scene by a modulated light source; combining a result of the spectral analysis and the meta-data analysis to provide an indication that illumination of the scene by a modulated light source is causing a visible artefact in at least one of the HDR images; and changing a HDR operating mode of the image processing system (200) accordingly.

公开(公告)号：US11882367B2

公开(公告)日：2024-01-23

申请号：US17769673

申请日：2020-10-13

Applicant: Connaught Electronics Ltd.

Inventor： Samantha Chalut ,  Patrick Denny ,  Brian Deegan

IPC: H04N23/745 ,  H04N23/667 ,  H04N23/71 ,  H04N23/741 ,  H04N23/73

CPC classification number: H04N23/745 ,  H04N23/667 ,  H04N23/71 ,  H04N23/73 ,  H04N23/741

Abstract: An image processing method comprises: performing a spectral analysis of a HDR image (220) to determine whether the HDR image (220) comprises spectral components indicative of a lighting of the scene by a modulated light source; analysing meta-data associated with a set of component images (221) for the HDR image to determine a difference between meta-data for one component image of the set and meta-data for at least one other component image of the set, any difference being indicative of an artefact caused by illumination of the scene by a modulated light source; combining a result of the spectral analysis and the meta-data analysis to provide an indication that illumination of the scene by a modulated light source is causing a visible artefact in at least one of the HDR images; and changing a HDR operating mode of the image processing system (200) accordingly.