Polarization calibration of fisheye cameras using skylight in the wild
Overview
This paper presents a joint lens-analyzer calibration method for fisheye cameras that explicitly models incidence-dependent lens transmission, analyzer gains, and angular offsets.
Generated from attributed reports · Updated 21 minutes ago
Event evidence and corrections
0 attributed source owners. Ownership does not establish independent confirmation. Quantities are reported separately and are never added together.
Reported quantity · mean absolute error: 0.5 other · Basis not reported · Differing source assertions
“del. On real-world outdoor sequences, the proposed method achieves a weighted cross-frame angle-of-linear-polarization (AoLP) mean absolute error below 0.5{\deg} across all incidence angles, with a 73.4% reduction in the 80{\deg}-90{\deg} incidence angle region, and generalizes to an independent sequence with an overall mean absolute error of 0.466{\deg} without refitting. Preliminary solar-azimuth experiments using”
Exact source · revision 1Source owner not reported
Reported quantity · mean absolute error: 0.466 other · Basis not reported · Differing source assertions
“del. On real-world outdoor sequences, the proposed method achieves a weighted cross-frame angle-of-linear-polarization (AoLP) mean absolute error below 0.5{\deg} across all incidence angles, with a 73.4% reduction in the 80{\deg}-90{\deg} incidence angle region, and generalizes to an independent sequence with an overall mean absolute error of 0.466{\deg} without refitting. Preliminary solar-azimuth experiments using”
Exact source · revision 1Source owner not reported
Artifact availability · paper: reported pending
“a camera mounted on a quadruped robot further show improved alignment with the visible solar center, supporting the potential of calibrated AoLP measurements for relative-heading estimation and future polarization--inertial navigation. The calibration software tool will be released upon acceptance of this paper.”
Exact source · revision 1Source owner not reported
Report timeline
Follow attributed reports and material updates.
- arXiv Robotics — research abstractsSignalPolarization calibration of fisheye cameras using skylight in the wild
This paper presents a joint lens-analyzer calibration method for fisheye cameras that explicitly models incidence-dependent lens transmission, analyzer gains, and angular offsets.
Event coverage history
There is not enough continuous observation data to show a trend.
Timezone · UTC
Article dates follow your selected timezone. Briefing editions use Hong Kong time (UTC+8).