Paper
30 April 2024 Investigation of spectral responsivity of imaging sensor and systems with a differential approach
Author Affiliations +
Proceedings Volume 13153, Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Technologies in Optical Systems; 131531K (2024) https://doi.org/10.1117/12.3020162
Event: Sixth Conference on Frontiers in Optical Imaging Technology and Applications (FOI2023), 2023, Nanjing, JS, China
Abstract
Spectral responsivity is a key parameter for imaging sensors and systems. Traditionally, the spectral responsivity is measured in darkroom with no ambient light. However, the dark condition is not similar to most application science where ambient light generally exist. To investigate the ambient light bias effect on the detection performance, we introduce a differential approach to measure the spectral responsivity of the imaging sensors and systems under the biased lighting condition. The differential spectral responsivity (DSR) can reflect the target-environment interaction in complex scenes such as object detection in very bright/weak lighting environment or with very low image contrast. In this paper, a measurement facility for the differential spectral responsivity in irradiance mode in the waveband (300~1100)nm is established and described. The factors affecting the measurement are analyzed. As a case study, a standard relative uncertainty of 2.35% (k=1) is obtained for a CMOS sensor system in the waveband (400~800)nm.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Wende Liu, Haiyong Gan, Haifeng Meng, Nan Xu, Limin Xiong, and Yingwei He "Investigation of spectral responsivity of imaging sensor and systems with a differential approach", Proc. SPIE 13153, Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Technologies in Optical Systems, 131531K (30 April 2024); https://doi.org/10.1117/12.3020162
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Sensors

Imaging systems

Cameras

Image sensors

Measurement uncertainty

Back to Top