so, let's say i have the long/lat or address of many buildings
can get satellite images, "street view", and perhaps 3d/perspective views of buildings.
want to find:
height, number of floors, floor area (max building footprint)
of the building. about 200k buildings.
Is there a library for recognizing buildings from satellite shots or pictures? Kind of like face detection I suppose.
Any other suggestions?
Thanks!
Yes and no. You will have to program many of the feature recognition yourself, but this should just be edge detection and point-of-interest detection (corners, straight lines, grids) to work out how many windows high a building is.
To do this you might want to checkout OpenCV (Computer Vision) which has C routines for real-time image analysis and common operations such as edge detection. I can also recommend DIP3e as a book to read and Image Processing in C and it's Java counterpart (if Java floats your boat).
Image processing is fun, and this sounds like a great project. There is tons on the Internet to learn from ... check out AI techniques to train image recognition systems to get better using a known sample set. Fun times!
Also, be careful of perspective ;)
good luck