1. A three dimensional image capture system comprising: an image capture device configured to generate video data; a lens, coupled to the image capture device, configured to focus a left image and a right image; a microprism array, coupled to the lens, configured to horizontally deflect the left image and the right image; and an image processing unit, coupled to the image capture device, configured to calculate a depthmap from the left image and the right image, captured simultaneously, in the video data including identifying the video data that falls outside a depth sensing region as background data, wherein the depth sensing region extends from the microprism array and reduces linearly based on a deviation angle, of the microprism array, and a distance from the microprism array to a target object.