Patent ID: 8913003
Filing Date: 2014-12-16
Classification: G06F

Abstract:
1. A machine-implemented method, comprising: capturing an image of two or more spatially fixed optical spots projected onto a display surface, the display surface displaying machine generated content capable of being manipulated via a cursor of a pointing device, wherein the images of the two or more optical spots is captured wirelessly using a handheld device representing the pointing device for which the optical spots serve as reference markers; and generating in the handheld device separate image data for each of the two or more spots within the image; processing in the handheld device the separate image data for each of the spots within the image to generate coordinate data for each of the spots within the image; wherein processing the image data further comprises: determining an intensity value for each of a plurality of pixels of the pixelated sensor; identifying a set of pixels in which each pixel has an intensity value above a specified threshold; generating coordinate data based on the intensity value and the location of each of the pixels in the set of pixels; transmitting from the handheld device the coordinate data derived from the processing of the image data; wherein a position of the cursor of the pointing device displayed on the display surface is determined and actively controlled based on the coordinate data transmitted from the handheld device.