Information exchange using color space encoded image

摘要

Embodiments of the present invention include systems, methods, and non-transitory computer program products for information exchange using color space encoded images. A color space encoded image can be displayed, for example on media such as posters, billboards, or paper, or on a display of a first device such as smartphone displays, palmtop displays, camera displays, tablet displays, or e-reader displays. A second device can acquire the displayed encoded image, for example by photographing the image. The second device can decode the color space encoded image or transfer the color space encoded image to a device that decodes the image.

主权项

1. A computer-implemented method for exchanging information, the method comprising:
receiving, at a capturing device, information for exchanging; creating, at the capturing device, an image encoding the information by:
creating colored cells within a color space to provide an encoded representation of the received information in an image by processing the received information to obtain a stream of integers, each integer in the stream of integers corresponding to a color in the color space for a cell in the image; andcreating one or more additional cells adjoining the image, the one or more additional cells including:
color calibration cells, the creating the one or more additional cells including determining a pseudo-Euclidean metric in a color space, wherein the metric measures a relative distance between a colored cell in the image and a sample color in the color calibration cells, the one or more additional cells for assisting in decoding the encoded image relative to the sample color in the color calibration cells; anda frame surrounding the encoded image;
wherein the frame is configured to assist one or more devices in determining at least one of a coarse-grained location and a fine-grained location of the colored cells;wherein the frame comprises at least one of a border of black cells and a border of white cells for coarse-grained location of the colored cells inside the frame; andwherein the frame comprises a border of cells having alternating colors for fine-grained location of the colored cells inside the frame; and displaying, at the capturing device, the encoded image for the one or more devices to decode.