Patent ID: 8615254
Filing Date: 2013-12-24
Classification: G01S,H04N,H04W

Abstract:
1. A method comprising: obtaining, by a computing device, image data associated with an object; estimating, by the computing device, a first location of the object based on the image data and a first probability grid, where the image data is used to generate a value for each cell of the first probability grid that indicates a probability that a first probability grid cell is occupied by the object; obtaining, by the computing device, wireless signal data from a device; estimating, by the computing device, a second location of the device based on the wireless signal data and a second probability grid, where the wireless signal data is used to generate a value for each cell of the second probability grid that indicates a probability that a second probability grid cell is occupied by the device; and multiplying each of the first probability grid cells with respective cells of the second probability grid to determine which two corresponding grid cells produce a largest probability across the first and second probability grids; and estimating, by the computing device, a current location of the device based on corresponding grid cells that produce the largest probability.