Patent Document ID: 20160267679
Application ID: 15065715
Patent Status: 0

Claim One:
1. A method of determining a location of a laser spot in an image, the method comprising: obtaining, from a camera, a plurality of images comprising a first set of images and a second set of images, wherein: the first set of images comprises images of a scene taken over a first period of time in which the laser spot is not present in the scene, and the second set of images comprises images of the scene taken over a second period of time in which the laser spot is present in the scene; combining the images in the first set of images to create a first composite image; combining the images in the second set of images to create a second composite image; creating a difference image by determining a difference in pixel values of pixels in the first composite image from pixel values of pixels in the second composite image; creating a filtered difference image by applying a Gaussian filter to the difference image; and comparing one or more pixel values of one or more pixels of the filtered difference image with a threshold value to determine the location of the laser spot within the filtered difference image.