The 4th 3D-ARCH International Conference on 3D Virtual Reconstruction and Visualization of Complex Architectures that is a long title, will be held March 2-5 in Trento, Italy. Some of the focus areas include image- and range-based 3D modeling, data registration, accuracy requirements and 3D webGIS and visualization issues for architectures and large sites.
This sounds like an important and highly focused digital heritage conference with a number of international experts presenting their research. This is the registration link. Now I have to figure out how I can justify attending.