Correspondence Problems, Segmentation, SLAM, Variational Methods, Partial Differential Equations
Frank Steinbrücker received his Bachelor's degree in 2007 and his Master's degree in Computer Science in 2008 at Saarland University (Germany). Since September 2008 he is a Ph.D. student in the Research Group for Computer Vision, Image Processing and Pattern Recognition at the University of Bonn headed by Professor Daniel Cremers.
At ICCV 2011 we published a method for getting a camera pose estimation from RGBD-Images. In the video below, the Kinect camera is moving in a static scene and the camera poses are being accurately estimated.
Dense Mapping of large RGB-D Sequences
In our publication at ICCV 2013 I describe a method for the volumetric fusion of large RGB-D sequences. The video below shows the mesh visualization of our office floor, a scene computed from more than 24.000 RGB-D images captured with the Asus Xtion sensor. The reconstruction run at more than 200 Hz on a GTX680. The finest resolution was 5mm and the entire scene fit into approximately 2.5 GB of GPU RAM, including color.
While the method published at ICCV 2013 required a GPU to run in real-time, in our paper published at ICRA 2014, we demonstrated that the mapping part of dense volumetric RGB-D image fusion also works on a single standard CPU core at camera speed. Furthermore, we describe a method for incrementally extracting mesh surfaces from the volumetric data in approximately 1 Hz on a separate CPU core. In comparison to ray-casting visualization methods, surface meshes have the benefit that the visualization is view-independent. Therefore, this method is applicable for transmitting the visualization from an embedded system to a base-station. The video below demonstrates our method published at ICRA 2014.
|Moment Constraints in Convex Optimization for Segmentation and Tracking , Chapter in Advanced Topics in Computer Vision, Springer, 2013. [bib] [pdf]|
|Conference and Workshop Papers|
|Volumetric 3D Mapping in Real-Time on a CPU , In International Conference on Robotics and Automation (ICRA), 2014. [bib] [pdf]|
|Large-Scale Multi-Resolution Surface Reconstruction from RGB-D Sequences , In IEEE International Conference on Computer Vision (ICCV), 2013. [bib] [pdf]|
|Real-Time Visual Odometry from Dense RGB-D Images , In Workshop on Live Dense Reconstruction with Moving Cameras at the Intl. Conf. on Computer Vision (ICCV), 2011. [bib] [pdf]|
|Advanced Data Terms for Variational Optic Flow Estimation , In Proceedings Vision, Modeling and Visualization (VMV), 2009. [bib] [pdf]|
|Large Displacement Optical Flow Computation without Warping , In IEEE International Conference on Computer Vision (ICCV), 2009. [bib] [pdf]|