US Patent 8248364 Seeing with your hand

The disclosure describes methods and systems for gathering and conveying information, for example, such as with a hand of a user. In one embodiment, the method may include using a detector to record a series of images of an environment and detecting a predetermined motion by comparing two or more images in the series. The method may include selecting a function based on the predetermined motion and triggering the function. In another embodiment, the method may include using a first detector to record a first series of images of an environment and using a second detector to record a second series of images of an environment. The method may include detecting a predetermined relative motion by comparing one or more images from the first series with one or more images from the second series, and selecting and/or triggering a function based on the predetermined relative motion.