Stereo time-of-flight with constructive interference
Castaneda V, Mateus D, Navab N (2014)
Publication Type: Journal article
Publication year: 2014
Journal
Book Volume: 36
Pages Range: 1402-1413
Article Number: 6620873
Journal Issue: 7
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 combine the measurements of the two cameras within a modified acquisition procedure. The new proposed stereo-ToF acquisition is composed of three stages 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 qualitative and quantitative evaluation of the performance of the proposed stereo-ToF acquisition is provided both for simulated and real ToF cameras. In both cases, the stereo-ToF acquisition produces more accurate depth measurements. Moreover, an extension to the multi-view ToF case and a detailed study on the interference specifications of the system are included. © 2014 IEEE.
Involved external institutions
Germany (DE)How to cite
APA:
Castaneda, V., Mateus, D., & Navab, N. (2014). Stereo time-of-flight with constructive interference. IEEE Transactions on Pattern Analysis and Machine Intelligence, 36(7), 1402-1413. https://doi.org/10.1109/TPAMI.2013.195
MLA:
Castaneda, Victor, Diana Mateus, and Nassir Navab. "Stereo time-of-flight with constructive interference." IEEE Transactions on Pattern Analysis and Machine Intelligence 36.7 (2014): 1402-1413.
BibTeX: Download