Invention Grant
- Patent Title: Motor vehicle camera device with histogram spreading
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Application No.: US15515801Application Date: 2015-10-02
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Publication No.: US10769762B2Publication Date: 2020-09-08
- Inventor: Mark Patrick Griffin
- Applicant: Connaught Electronics Ltd.
- Applicant Address: IE Tuam, County Galway
- Assignee: Connaught Electronics Ltd.
- Current Assignee: Connaught Electronics Ltd.
- Current Assignee Address: IE Tuam, County Galway
- Agency: Osha Liang LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7ac3d5c4
- International Application: PCT/EP2015/072786 WO 20151002
- International Announcement: WO2016/050954 WO 20160407
- Main IPC: G06T5/00
- IPC: G06T5/00 ; H04N5/235 ; B60R1/00 ; G06T5/40 ; H04N5/238 ; H04N5/243 ; H04N9/04 ; H04N9/73

Abstract:
A camera device for a motor vehicle includes an image sensor to provide a raw image (R) of an environment of the camera device. Additionally, an image processing device generates an output image (I) from the raw image (R) by means of a spreading function of a histogram spreading. The spreading function generates from a respective input pixel value (Li) of each pixel of the raw image (R) each one output pixel value (Lo) of a corresponding pixel of the output image (I). Furthermore, the histogram spreading may be adapted to the capturing situation. At least one parameter value (S, G) of the camera device depending on a brightness (B1, B2) of the environment is acquired and a limit value (L) for the output pixel values (Lo) is set in the spreading function depending on the at least one acquired parameter value (S, G).
Public/Granted literature
- US20170243337A1 MOTOR VEHICLE CAMERA DEVICE WITH HISTOGRAM SPREADING Public/Granted day:2017-08-24
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