Accurate All-Round 3D Measurement Using Trinocular Spherical Stereo via Weighted Reprojection Error Minimization
- Resource Type
- Conference
- Authors
- Yin, Wanqi; Pathak, Sarthak; Moro, Alessandro; Yamashita, Atsushi; Asama, Hajime
- Source
- 2019 IEEE International Symposium on Multimedia (ISM) Multimedia (ISM), 2019 IEEE International Symposium on. :86-867 Dec, 2019
- Subject
- Computing and Processing
3D Measurement
Spherical Cameras
- Language
Comparing to perspective cameras, the all-round 3D measurement of the environment can be done by spherical cameras in a more efficient way. However, the measurement using binocular spherical stereo has two singularity points at the epipoles of each spherical camera, where the measurement result gets extremely sensitive to the error when getting close to the epipoles and along the epipolar directions. This affects the accuracy of 3D reconstruction along with the epipolar directions. A three-way measurement method using three spherical cameras with trinocular spherical stereo setup is proposed in this paper to achieve accurate all-round 3D measurement. The improved accuracy of 3D measurement by the implementation of weighted reprojection error optimization was verified in experiments.