 | ATOP
is a tool for the fast reconstruction of 3D building models from aerial
laser scanning (or, if you prefer, dense stereo matching) data and
ground plans. The demo comes completely with a dataset of Hannover,
Germany. ATOP has evolved for quite a while, see also the remarks at
the research page. |
 | Visibility is a demonstrator for the computation of visibility
from dense DSM and ground plans. Its purpose is to compute which
building id's are visible (and to what extent) from a given location.
It has been used in investigations on landmark based navigation carried
out together with Dr.-Ing. Birgit Elias. |
 | WeakPrimitives
shows how constraint equations work in 2D. At the ISPRS congress in
2004, I proposed "weak primitives" - objects that look like CSG
objects, but are indeed BRep models bundled with a set of constraint
equations. The goal is to make it easy to add, maintain and introspect
constraint equation systems which accumulate during the reconstruction
of objects. The concept has later been extended to cartographic objects. |
 | StreamDemo
demonstrates a concept for continuous scale map display and
incremental, "streaming" transmission. Objects are generalized in an
offline process (provided by Prof. Monika Sester), but instead of memorizing different generalization
(scale) levels in a geometric representation, the topologic and
geometric operations required to "morph" one representation into
another are stored. This is similar to edge collapse/insert concepts in
TIN generalization, however with more elaborated base operations. In a
client/server setting, the client determines the required scale level
(e.g. based on zoom) and the server then streams all required
operations to build the scene. The display can be continuously updated
while stream data is received. The demo contains client and server in a
monolithic program, however you can also play with the "transmission
rate" to see the effects of limited bandwidth. |
