Invention Grant
- Patent Title: Imaging systems and methods for recovering object visibility
- Patent Title (中): 用于恢复对象可见性的成像系统和方法
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Application No.: US12227022Application Date: 2007-05-09
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Publication No.: US08350957B2Publication Date: 2013-01-08
- Inventor: Yoav Schechner , Tali Treibitz
- Applicant: Yoav Schechner , Tali Treibitz
- Applicant Address: IL Haifa
- Assignee: Technion Research and Development Foundation Ltd.
- Current Assignee: Technion Research and Development Foundation Ltd.
- Current Assignee Address: IL Haifa
- Agency: The Law Office of Michael E. Kondoudis
- International Application: PCT/IL2007/000560 WO 20070509
- International Announcement: WO2007/129326 WO 20071115
- Main IPC: H04N5/222
- IPC: H04N5/222 ; H04N7/00 ; H04N5/253 ; G03B17/08

Abstract:
A system and method are provided for imaging in scattering media such as fog, water and biological tissues. Normally, such images suffer from poor visibility due to backscattering and signal attenuation. At least two images are taken of the scene using active widefield polarized illumination, with different states of a camera-mounted polarizer. The degree of polarization of backscatter is estimated in every point of the scene, leading to an estimation of the backscatter in every point of the scene. A portion or all of the value of backscatter can be deducted in each point of the scene resulting in an enhanced image with improved contrast and brightness range across the field of view.
Public/Granted literature
- US20090295933A1 Imaging Systems and Methods for Recovering Object Visibility Public/Granted day:2009-12-03
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