Invention Grant
- Patent Title: Systems and methods for smoke-reduction in images
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Application No.: US17641452Application Date: 2019-09-11
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Publication No.: US12223629B2Publication Date: 2025-02-11
- Inventor: Xiaofang Gan , Zhenhai Zhang , Zhentao Lu
- Applicant: Covidien LP
- Applicant Address: US MA Mansfield
- Assignee: Covidien LP
- Current Assignee: Covidien LP
- Current Assignee Address: US MA Mansfield
- Agency: Carter, DeLuca & Farrell LLP
- International Application: PCT/CN2019/105311 WO 20190911
- International Announcement: WO2021/046743 WO 20210318
- Main IPC: G06T5/73
- IPC: G06T5/73 ; G06T7/90

Abstract:
A method for smoke reduction in images includes accessing an RGB image of an object obscured by smoke, determining a dark channel matrix of the RGB image, estimating an atmospheric light matrix for the RGB image based on the dark channel, determining a transmission map based on to the atmospheric light matrix and the dark channel matrix, de-hazing the RGB image based on the transmission map to reduce the smoke in the RGB image, and displaying the de-hazed RGB image on a display device. The RGB image includes a plurality of pixels. The dark channel matrix includes, for each pixel of the plurality of pixels, a minimum color component intensity for a respective pixel area centered at the respective pixel. The atmospheric light matrix includes an atmospheric light component value for each of the plurality of pixels.
Public/Granted literature
- US20220392022A1 SYSTEMS AND METHODS FOR SMOKE-REDUCTION IN IMAGES Public/Granted day:2022-12-08
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