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Showing posts from May 15, 2009

Teaching Machines to Locate Objects in Photos

How to Create a holographic display and camcorder In the last part of the series "How to Create a Holographic Display and Camcorder", I talked about how to use the cameras to calculate the disparity between photos.  To do so, we have locate the objects in two photos, but this should be done by a machine. In this part of the series, I'll talk about how to show a machine to locate objects in photos. To calculate the depth information or the disparity of an object, we need to locate where the object is in each photo. [Insert an illustration of an object and a camera by X-axis translation] How to locate an object in each photo? In each photo, we need to find the same object.  Then, we should calculate the disparity between the object in the first photo and the object in the second photo. So, how do we locate the same object in each photo? Let's say we want to locate a tip of a cat's left ear in two photos.  Each photo shows the same cat, but at the