Reconstruction of 3D environments is the process of constructing a computer model of a full 3D environment including multiple objects. Thus the problem of image segmentation must be solved in environment reconstruction. Reverse engineering systems have worked with single objects. Color and texture are important in a 3D environment model. They have not been important and have generally been omitted in most reverse engineering work.
Measurement accuracy is important in reverse engineering.
In 3D environment reconstruction, measurement accuracy may be less important, but domain constraints of the environment must be satisfied. Rather than making reconstruction more difficult, domain constraints can be used to improve the reconstruction. This will be discussed in more detail. There has been no attempt to understand the physical structure of the acquired objects. The new approach that we advocate is to use domain knowledge to simplify and improve the model-acquisition process.