Invention Grant
- Patent Title: Method, apparatus and system for detecting and reducing the effects of color fringing in digital video acquired by a camera
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Application No.: US16167393Application Date: 2018-10-22
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Publication No.: US10687036B2Publication Date: 2020-06-16
- Inventor: Jonas Hjelmström
- Applicant: Axis AB
- Applicant Address: SE Lund
- Assignee: Axis AB
- Current Assignee: Axis AB
- Current Assignee Address: SE Lund
- Agency: Volpe and Koenig, P.C.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@3b57d563
- Main IPC: H04N9/64
- IPC: H04N9/64 ; H04N5/359 ; H04N5/367 ; H04N9/04 ; H04N5/357 ; G06T5/00 ; G06T5/50

Abstract:
The disclosure relates to a method, apparatus and system for detecting and reducing the effects of color fringing in digital video acquired by a camera comprising an iris. The method comprises: acquiring, by the camera, a first digital image frame using a first camera setting, including a first iris aperture size; acquiring, by the camera, a second digital image frame using a second camera setting, including a second iris aperture size, wherein the second aperture size is smaller than the first aperture size; comparing the first and the second digital image frame, at least a specific color component thereof; localizing regions having a disproportional intensity ratio in the specific color component between the first digital image frame and the second digital image frame; and reducing the specific color component in the localized regions for subsequently acquired digital image frames.
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Information query