Radiometric Calibration of Imagers
Dark signal measurement
Response linearity measurement
SNR analysis
Introduction
ITRC has established the procedures for radiometric test and calibration, which can be applied to digital cameras and detectors in remote sensing or Automatic Optical Inspection (AOI) systems.
Technology
- Signal transfer function establishment
- Response linearity measurement
- Signal-to-Noise Ratio (SNR) analysis
Specification
- Entrance pupil diameter: < 300 mm
- Field of view: < 120°
- Relative radiometric accuracy: ≥ 99 %
- Absolute radiometric accuracy: ≥ 93 %
- SNR error: ≤ ± 3 %
Application
- Digital still camera
- Industrial inspection
- System SNR assessment
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| Before | After | |
| Radiometric calibration | ||
