Invention Grant
- Patent Title: Image signal processing for reducing lens flare
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Application No.: US16849498Application Date: 2020-04-15
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Publication No.: US11330208B2Publication Date: 2022-05-10
- Inventor: Bruno César Douady-Pleven , Nicolas Boehrer , Thomas Nicolas Emmanuel Veit
- Applicant: GoPro, Inc.
- Applicant Address: US CA San Mateo
- Assignee: GoPro, Inc.
- Current Assignee: GoPro, Inc.
- Current Assignee Address: US CA San Mateo
- Agency: Young Basile Hanlon & MacFarlane, P.C.
- Main IPC: H04N5/357
- IPC: H04N5/357 ; H01L27/146 ; G06T5/50 ; G06T5/00

Abstract:
Flare compensation includes obtaining a first input frame, which includes lens flare, and a second input frame; obtaining a stitch line between the first input frame and the second input frame; obtaining, for the first input frame, a first intensity profile; obtaining, for the second input frame, a second intensity profile; obtaining an intensity differences profile; obtaining a first dark corner profile based on a first illumination of a first area outside a first image circle of the first input frame; obtaining a second dark corner profile based on a second illumination of a second area outside a second image circle of the second input frame; obtaining a dark corner difference profile; calculating a flare model; obtaining a flare mask; and correcting the first input frame by subtracting the flare mask from the first input frame.
Public/Granted literature
- US20200244901A1 IMAGE SIGNAL PROCESSING FOR REDUCING LENS FLARE Public/Granted day:2020-07-30
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