BUILDING GEOMETRIC AND PHOTOMETRIC CORRECT 3-D MODELS

Supported in part by ONR/DARPA MURI award ONR N00014-95-1-0601 and NSF grants CDA-96-25374, EIA-97-29844 and IIS-01-21239.

This research has 2 components. The first is a patented method for 3-D CAD models from range data (ref. 1). The second part is the AVENUE project which extends these methods to create geometric and photometric correct models of large outdoor structures (buildings) (ref. 2). We are currently pursuing three testbeds for this research: the Columbia University campus (see below), the Cathedral of Saint Pierre in Beauvais, France, and the Columbia University excavation in Amheida, Egypt. A list of relevant publications can be found here

Multimedia:

Slide Show I: Range Scanning Outdoor Structures

Slide Show II: Solid Model Construction from Range Imagery View a short MPEG on Modeling Outdoor Scenes

View a short MPEG on the solid model construction method

Examples:

3-D Outdoor modeling, with photometry, for buildings on Columbia Campus. Dense range scans are segmented and registered, and a 3-D solid model is created by volumetric sweep intersection. Texture mapping is then automatically applied to create a geometric and photometric correct model.

Guggenheim Museum. Two range scans are integrated to create a 3-D model which is then texture mapped.

Flatiron Building, NYC. Two range scans are integrated to create a 3-D model which is then texture mapped.

Solid model construction method: Video game controller constructed from 3 range scans via volumetric intersection. Propeller was constructed from 2 180 degree opposite range scans and volume interesction.

Bear constructed from 4 views, Hip Prothesis from 4 views