D’oh!
You could take the high road, proudly proclaiming, " Yes. I believe in open source coding. I’ve shared this idea not for mere profit but for the betterment of all personkind !!! "
Then share the code. Except for one small component seen below 8675309
The technology has existed for a while as part of Image Based Rendering. I saw a demo at SIGGRAPH where a 3D model was made of a space by just walking around with a single 2D camera. It made some errors that had to be manually fixed, but it had a very good idea of the dimensions of the space and what objects were in front of other objects.