The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 05, 2016

Filed:

Sep. 30, 2013
Applicant:

GM Global Technology Operations Llc, Detroit, MI (US);

Inventors:

Wende Zhang, Troy, MI (US);

Jinsong Wang, Troy, MI (US);

Kent S. Lybecker, Rochester, MI (US);

Jeffrey S. Piasecki, Rochester, MI (US);

Ryan M. Frakes, Bloomfield Hills, MI (US);

Travis S. Hester, Rochester Hills, MI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/225 (2006.01); H04N 5/228 (2006.01); H04N 5/235 (2006.01); G06K 9/40 (2006.01); G06K 9/36 (2006.01); H04N 9/04 (2006.01);
U.S. Cl.
CPC ...
H04N 9/045 (2013.01); H04N 5/2355 (2013.01);
Abstract

A method for generating a glare-reduced image from images captured by a camera device of a subject vehicle includes obtaining a short-exposure image and a long-exposure image and generating a resulting high dynamic range image based on the short-exposure and long-exposure images. Pixel values are monitored within both the short- and long-exposure images. A light source region is identified within both the short- and long-exposure images based on the monitored pixel values. A glaring region is identified based on the identified light source region and one of calculated pixel ratios and calculated pixel differences between the monitored pixel values of the long- and short-exposure images. The identified glaring region upon the resulting high dynamic range image is modified with the identified light source region within the short-exposure image. The glare-reduced image is generated based on the modified identified glaring region upon the resulting HDR image.


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