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Patent drawing for Using projection for visual recognition
US 9,160,993 B1
Video US 9,160,993 B1 Not in force

Using projection for visual recognition

This invention describes a smart device that can project light onto real-world objects and then use a camera to see how those projections interact with the object. Specifically, the claims narrow the invention to projecting light onto text, such as illuminating a word with white light or underlining a sentence. It can also highlight parts of text that match a search query.

Why it matters: Filed before widespread mobile augmented reality and advanced real-time computer vision. Modern smartphone processors and AI models can now perform the necessary real-time object recognition and precise projection alignment with much greater efficiency and accuracy.

Status
Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build
SpecializedReal-time image processing, projector-camera calibration, software system.

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