Abstract

The calibration of camera with intrinsic and extrinsic parameters is a procedure of significance in current imaging-based optical metrology. Improvement at two aspects, feature detection and overall optimization, are investigated here by using an active phase target and statistically constrained bundle adjustment (SCBA). From the observations in experiment and simulation, the feature detection can be enhanced by “virtual defocusing” and windowed polynomial fitting if sinusoidal fringe patterns are used as the active phase target. SCBA can be applied to avoid the difficult measurement of the active target. As a typical calibration result in our experiment, the root mean square of reprojection error can be reduced to 0.0067 pixels with the proposed method.

© 2013 Optical Society of America

Full Article  |  PDF Article
More Like This
Flexible camera calibration using not-measured imperfect target

Lei Huang, Qican Zhang, and Anand Asundi
Appl. Opt. 52(25) 6278-6286 (2013)

Accurate feature detection for out-of-focus camera calibration

Yuwei Wang, Xiangcheng Chen, Jiayuan Tao, Keyi Wang, and Mengchao Ma
Appl. Opt. 55(28) 7964-7971 (2016)

Stereo-camera calibration for large-scale DIC measurements with active phase targets and planar mirrors

Katia Genovese, Yuxi Chi, and Bing Pan
Opt. Express 27(6) 9040-9053 (2019)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics