SYSTEMS AND METHODS FOR TIME-MULTIPLEXING TEMPORAL PIXEL-LOCATION DATA AND REGULAR IMAGE PROJECTION FOR INTERACTIVE PROJECTION

摘要

A system and method for generating a projected image signal encoded with position information. The temporal pixel-location data is hidden within visible light signal used for regular image projection. This enables the user to utilize one or multiple ring-shaped light receivers to implement touch or multi-touch functions on a regular image content generated using light from the same projector. The temporal light signal generated by the projector is sliced into multiple temporal segments. The segments include segments of two different types. A segment of the first type is used for carrying a temporal position signal of each pixel in the projector signal. On the other hand, a segment of the second type is used to adjust the color of each pixel. With the color adjustment segment projected to each image pixel, a meaningful visible content of a regular image can be displayed despite the presence of the position-encoded signal segments.

主权项

1. A computer-implemented method performed in connection with a computerized system comprising a processing unit, a memory and a projector, the computer-implemented method comprising:
a. receiving an image data, the image data comprising at least a color value for each of a plurality of pixels of an image, the color value representing a color of said each of the plurality of image pixels, wherein each of the plurality of image pixels is characterized by pixel coordinates; and b. causing the projector to project a temporal light signal to create a projection of the image on a projection surface, wherein the temporal projector light signal comprises, for each image pixel of the plurality of image pixels, a temporal position information segment encoded with the pixel coordinates of said each image pixel and a color compensation segment configured to reproduce substantially the color of said each image pixel of the plurality of image pixels on the projection surface.