GLARING REDUCTION FOR DYNAMIC REARVIEW MIRROR

摘要

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.

主权项

1. Method for generating a glare-reduced image from images captured by a camera device of a subject vehicle, comprising:
obtaining a short-exposure image and a long-exposure image captured by the camera device; generating a resulting high dynamic range (HDR) image based on the short-exposure and long-exposure images; monitoring pixel values within both the short-exposure and the long-exposure images; identifying a light source region within both the short-exposure and the long-exposure images based on the monitored pixel values; calculating one of pixel ratios and pixel differences between the monitored pixel values of the long-exposure and the short-exposure images; identifying a glaring region based on the identified light source region and one of calculated pixel ratios and calculated pixel differences; modifying the identified glaring region upon the resulting HDR image with the identified light source region within the short-exposure image; and generating a glare-reduced image based on the modified identified glaring region upon the resulting HDR image.