ReVisitor development in progress...
 

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ReVisitor WiMap is a software suite for generation of 3D information, such as digital surface models and 3D city models. A variety of different data sources, including aerial images and lidar (light detection and ranging, laser scanning), can be used.

ReVisitor WiMap currently consists of the modules:

• WiMap BM - Building Modeler. Automatically generates virtual 3D buildings from LiDAR data and (optionally) aerial imagery. (Presentation at 3D GIS seminar, Stockholm, 2009.)
• WiMap W2S - Wireframe to surface conversion. Generates closed surfaces from vector data.

A few mile stones from the blog:

2009-07-28	I have develop a region growing algorithm. There are some issues still, but most of it is there. I plan to use this to bridge homogeneous areas for DSM generation, but also for building reconstruction from aerial and remote sensing images. Region growing at different scales. Click on the image or here to view full resolution images. The image is from Suzhou, China.
2009-07-02	Delivered two sample DSM:s to Metria for quality assessment. One of them was this one: A DSM example generated from two Ikonos images over a mountainous area. View X3D model here.
2009-06-24	Yet a milestone in the development of the DSM generator! After yesterdays work on mutual preference, the quality of the DSM:s has improved significantly. There are still a number of features I will reimplement from my YARD DSM generator, but already now the results are quite ok. Matching is still time consuming because of the transformations, but a simple optimization today reduced the execution time to less than half the time (from 3 min 56 sec to 1 min 42 sec for a coarse DSM)! A DSM example generated from two Ikonos images over a mountainous area. The lighter gray level, the higher altitude.