Worst-case Analysis of Set Union Algorithms
Journal of the ACM (JACM)
Computational geometry: an introduction
Computational geometry: an introduction
Primitives for the manipulation of general subdivisions and the computation of Voronoi
ACM Transactions on Graphics (TOG)
Multiple view geometry in computer vision
Multiple view geometry in computer vision
Numerical Recipes in C: The Art of Scientific Computing
Numerical Recipes in C: The Art of Scientific Computing
Introduction to Algorithms
A Time-Of-Flight Depth Sensor - System Description, Issues and Solutions
CVPRW '04 Proceedings of the 2004 Conference on Computer Vision and Pattern Recognition Workshop (CVPRW'04) Volume 3 - Volume 03
MIDIAS: An Integrated 2D/3D Sensor System for Safety Applications
ACIVS '08 Proceedings of the 10th International Conference on Advanced Concepts for Intelligent Vision Systems
| Hi-index | 0.00 |
In this article we propose a calibration algorithm and three low-level data fusion algorithms for a parallel 2D/3D-camera system. A parallel 2D/3D-camera is a hardware setup of a range camera and a high-resolution gray-value camera spatially related to each other by a fixed translation. The proposed calibration algorithm utilizes the fact that for known calibration patterns the range reconstruction accuracy of the gray-value camera is significantly higher than that of the range sensor. Using the calibrated 2D/3D-camera we identify the range pixels within the gray-value image for each pair of acquired camera images. We present three low-level data fusion approaches assigning range information to each gray-value pixel based on different neighborhood relations to the identified range pixels: one-nearest neighbor, nearest neighbors in the surrounding Delaunay-triangle, and nearest neighbors constrained by a gray-value image segmentation. We demonstrate the applicability, efficiency and accuracy of our calibration and fusion algorithms on real and synthetic data. Our real experiments are performed on a 2D/3D-camera comprising a Siemens 64x8-pixel time-of-flight range camera developed within the European project PReVENT (UseRCams) and a common gray-value camera.