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The main programmer here. For the technically curious, the ingredients of the image processing are OpenCV and CNNs(Convolutional neural nets).

On design aspects, we wrote a short post here: http://blog.taglev.com/design-philosophy-behind-taglev/

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For CNN's are you using caffe?

Not Caffe. We're using a light weight in-house library which compiles and runs easily on mobile devices too. The advantage is primarily in size as we don't need as many features as a full blown framework like Caffe.

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