PhotoCAD is a professional solution for the creation of panoramic images
that you can use .as is. or integrate with your architectural projects or
into your 3D scenes. Resulting panoramas can be printed at high resolution
or shared across the Internet. Architects, town planners, interior
decorators, theater set, landscape and exhibition booth designers can
all take advantage of the new horizons opened up by the advanced
functionality offered by PhotoCAD: you can now capture any 3D environment
with astonishing ease ease in the form of a panoramic picture. PhotoCAD
has many other gifts. It can straighten an elevation or facade assembled
from photographs, calculating a parallel projection from the original
perspective . all photograph from the building industry will applaud
this capability for the creation of dimensioned reference material
in modeling and CAD software, such as SketchUp and ArchiCAD, or
textures in Art.lantis and other imaging software. It also calculates
collages without distortion or color break, allowing you to recompose
a high resolution poster from multiple lower resolution images.

http://www.abvent.com/us/software/photocad/default.asp