Title
Stereo time-of-flight
Abstract
This paper describes a novel method to acquire depth images using a pair of ToF (Time of Flight) cameras. As opposed to approaches that filter, calibrate or do 3D reconstructions posterior to the image acquisition, we propose to combine the measurements of the two cameras at the acquisition level. To do so, we define a three-stages procedure, during which we actively modify the infrared lighting of the scene: first, the two cameras emit an infrared signal one after the other (stages 1 and 2), and then, simultaneously (stage 3). Assuming the scene is static during the three stages, we gather the depth measurements obtained with both cameras and define a cost function to optimize the two depth images. A quantitative evaluation of the performance of the proposed method for different objects and stereo configurations is provided based on a simulation of the ToF cameras. Results on real images are also presented. Both in simulation and real images the stereo-ToF acquisition produces more accurate depth measurements.
Year
DOI
Venue
2011
10.1109/ICCV.2011.6126431
Computer Vision
Keywords
Field
DocType
cameras,computer vision,stereo image processing,ToF camera,cost function,depth image,image acquisition,infrared lighting,stereo time-of-flight,stereo-ToF acquisition
Computer vision,Stereo cameras,Computer graphics (images),Computer science,Artificial intelligence,Real image,Time of flight,Calibration
Conference
ISSN
ISBN
Citations 
1550-5499
978-1-4577-1101-5
5
PageRank 
References 
Authors
0.45
11
3
Name
Order
Citations
PageRank
Victor Castaneda1413.17
Diana Mateus241732.74
Nassir Navab36594578.60