Patent ID: 7542072
Filing Date: 2009-06-02
Classification: G06F

Abstract:
1. A system for imaging a device having a screen which emits a polarized light, the system comprising: a photo sensor array for imaging the polarized light emitting screen including sensing incident polarized light emitted from the screen and incident light reflected from a background region near the screen and generating an image set corresponding to the sensing; at least one polarizing filter including at least first and second polarizing regions for filtering light incident on the photo sensor array, wherein the first and second polarizing regions have first and second polarizing angles, respectively, wherein the image set includes at least one image having a first plurality of pixels corresponding to the sensing of incident light filtered by the first polarizing region and a second plurality of pixels corresponding to the sensing of incident light filtered by the second polarizing region; and at least one processor for executing a series of programmable instructions which provide for determining a location of the imaged screen in the imaged set by comparing the first and second plurality of pixels.