Patent ID: 9172888
Filing Date: 2015-10-27
Classification: H04N

Abstract:
1. A method comprising: capturing, by an image sensor, a plurality of images of a scene, wherein each image of the plurality of images is captured using a different total exposure time (TET); downsampling the images in the plurality of images; constructing a pixel value histogram based on pixel values of the downsampled images; comparing the pixel value histogram to one or more reference pixel value histograms, wherein comparing the pixel value histogram to the one or more reference pixel value histograms comprises determining, for the pixel value histogram and each of the one or more reference pixel value histograms, respective similarity metrics, and determining respective weights based on the similarity metrics; determining a payload TET based on comparing the pixel value histogram to the one or more reference pixel value histograms; and capturing at least one additional image of the scene using the payload TET.