非表示:
キーワード:
-
要旨:
This paper describes a new out-of-core multi-resolution data structure for
real-time visualization and interactive editing of large point clouds. In
addition, an editing system is discussed that makes use of the novel data
structure to provide interactive editing tools for large scanner data sets. The
new data structure provides efficient rendering and allows for handling very
large data sets using out-of-core storage. Unlike related previous approaches,
it also provides dynamic operations for online insertion, deletion and
modification of points with time mostly independent of scene complexity. This
permits local editing of huge models in real time while maintaining a full
multi-resolution representation for visualization. The data structure is used
to implement a prototypical editing system for large point clouds. It provides
real-time local editing tools for huge data sets as well as a two-resolution
scripting mode for planning large, non-local changes which are subsequently
performed in an externally efficient offline computation. We evaluate our
implementation on several synthetic and real-world examples of sizes up to
63GB.
