A research on HDR and low illumination imaging based on the dual channel monochrome sCMOS

Zhan Shi; Kai Ma; Shaodong Chen; Peiyu Hao

doi:10.1117/12.2502763

12 December 2018 A research on HDR and low illumination imaging based on the dual channel monochrome sCMOS

Zhan Shi, Kai Ma, Shaodong Chen, Peiyu Hao

Proceedings Volume 10846, Optical Sensing and Imaging Technologies and Applications; 1084609 (2018) https://doi.org/10.1117/12.2502763
Event: International Symposium on Optoelectronic Technology and Application 2018, 2018, Beijing, China

Abstract

Due to the impact of urban lighting in low illumination environment, the images that collected by the low illumination sensor may appear “local saturation” phenomenon. When the traditional image sensor captures high dynamic range (HDR) of the sense, either the brighter part of the generated image is over exposure that may lost many details, or the dark part of the generated image is underexposure which cannot be resolved. In order to overcome this problem, it makes a research on the dual channel monochrome scientific complementary metal oxide semiconductor (sCMOS) sensor, which can generate both a high gain (HG) channel image and a low gain (LG) channel image in a same frame exposure. Take the way of image fusion by using these two images; it can get the HDR image in low illumination environment. Comparing with the traditional image sensor, the dynamic range of dual channel monochrome sCMOS sensor is obviously extended. The scheme based on dual channel sCMOS can effectively conquer the defects of low dynamic range bring by traditional image sensor, and it can overcome the problem of insufficient real time performance due to multiframe exposure. For dual channel sCMOS has the features of HDR, it can operate at a lower illuminative condition and will have a wide application area.

Citation Download Citation

Zhan Shi, Kai Ma, Shaodong Chen, and Peiyu Hao "A research on HDR and low illumination imaging based on the dual channel monochrome sCMOS", Proc. SPIE 10846, Optical Sensing and Imaging Technologies and Applications, 1084609 (12 December 2018); https://doi.org/10.1117/12.2502763

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KEYWORDS

Image fusion

High dynamic range imaging

Sensors

Image processing

Cameras

Image sensors

Data conversion

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