3D Object Detection and Modeling from Images and Lidar
a. Satellite images
- 3D reconstruction from satellite images
- Extracting and reconstructing building models automatically with an end-to-end workflow
Figure. From satellite images and image-derived point clouds, our approach segments and models buildings (grey), bridges (cyan), and terrain (green) before texturing from the imagery.
b. Airborne Lidar
- Generating 3D models of buildings from airborne lidar data
Figure. (a) color coded planar roof points and (b) boundary model extracted from airborne Lidar.
c. Ground Doppler Lidar
- Building a model-free detection-based tracking approach to detect and track moving objects in Doppler LiDAR scans
Figure. Detection results on static (sequences (a,b)) and mobile datasets (sequences (c,d)).
d. Smartphone Images
- Point clouds of pavement from smartphone images
- Mean Profile Depth (MPD) calculation from point clouds
Figure. 4 examples of 3D point clouds rendered over images respectively from the INDOT test site (upper left), SR 32 (upper right), SR 446 (lower left), and SR 205 (lower right).