Skip to Main content Skip to Navigation
Conference papers

A Unified Approach to Calibrate a Network of Camcorders and ToF cameras

Abstract : In this paper, we propose a unified calibration technique for a heterogeneous sensor network of video camcorders and Time-of- Flight (ToF) cameras. By moving a spherical calibration target around the commonly observed scene, we can robustly and conveniently extract the sphere centers in the observed images and recover the geometric extrinsics for both types of sensors. The approach is then evaluated with a real dataset of two HD camcorders and two ToF cameras, and 3D shapes are reconstructed from this calibrated system. The main contributions are: (1) We reveal the fact that the frontmost sphere surface point to the ToF camera center is always highlighted, and use this idea to extract sphere centers in the ToF camera images; (2) We propose a unified calibration scheme in spite of the heterogeneity of the sensors. After the calibration, this multi-modal sensor network thus becomes powerful to generate high-quality 3D shapes efficiently.
Document type :
Conference papers
Complete list of metadata

Cited literature [14 references]  Display  Hide  Download

https://hal.inria.fr/inria-00321941
Contributor : Peter Sturm <>
Submitted on : Tuesday, September 16, 2008 - 11:32:53 AM
Last modification on : Thursday, May 27, 2021 - 1:54:04 PM
Long-term archiving on: : Friday, June 4, 2010 - 11:25:49 AM

File

1569138968.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : inria-00321941, version 1

Collections

Citation

Li Guan, Marc Pollefeys. A Unified Approach to Calibrate a Network of Camcorders and ToF cameras. Workshop on Multi-camera and Multi-modal Sensor Fusion Algorithms and Applications - M2SFA2 2008, Andrea Cavallaro and Hamid Aghajan, Oct 2008, Marseille, France. ⟨inria-00321941⟩

Share

Metrics

Record views

203

Files downloads

466