Help required for a novel recording technology

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This technology is still limited however. It cannot measure the features within the image, so traditional measurements would still be required in order to produce an accurate record. Neither does it produce a geographical location, and so traditional methods would also be required for this

I dont understand why this technique cannot do these things, surely if you know your camera position and orientation and your light sources you should be able to measure and locate "features" The fact that the techinque produces images does mean that features are "interpretations" but by taking a "feature" away and rephotographing that object should have its place in your record.

PS I like the use of the word map