Long Zheng has an overview on his site. The tag is similar to a barcode, but has obvious visual differences — colored vs. black and white, and triangles vs. squares or lines. Perhaps this was required to optimize the area in which the tag data was encoded, while also yeilding better results for pattern recognition software. The technology looks interesting — but will it get the adoption necessary for it to be successful? What applications do you see for such technology?"
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