A 1×1 region of interest readout scheme at arbitrary position for infrared focal plane array

Changkun Cui; Nan Chen; Shanshan Li; Zhihao Li; Wenbiao Mao; Libin Yao

doi:10.1117/12.2617554

15 February 2022 A 1×1 region of interest readout scheme at arbitrary position for infrared focal plane array

Changkun Cui, Nan Chen, Shanshan Li, Zhihao Li, Wenbiao Mao, Libin Yao

Proceedings Volume 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021); 121665L (2022) https://doi.org/10.1117/12.2617554
Event: Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 2021, Hong Kong, Hong Kong

Abstract

Region of Interest (ROI) readout is used in readout integrated circuit (ROIC) to improve the frame rate, and reduce the bandwidth for image sensor and infrared Focal Plane Array (IRFPA). The scheme of gray code addressing with the 64×1 minimum size of ROI is widely used. However, the circuit needs to be custom redesigned when the pixel array is changed, which reduces the scalability. The pixel scheme reduces the minimum size of ROI to 1×1. Because of its repeatable circuit design, the scheme has good scalability. But this program occupies the area of pixels, which reduces the dynamic range of image. In this paper, a ROI readout scheme using unit circuit for IRFPA is presented. The minimum size of ROI is reduced to 1×1 in the scheme without occupying the area of pixel. In order to achieve high scalability, reusable circuit named unit circuit is used to control the gating of pixels. The circuit design and simulation results are presented in this paper.

Citation Download Citation

Changkun Cui, Nan Chen, Shanshan Li, Zhihao Li, Wenbiao Mao, and Libin Yao "A 1×1 region of interest readout scheme at arbitrary position for infrared focal plane array", Proc. SPIE 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 121665L (15 February 2022); https://doi.org/10.1117/12.2617554

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KEYWORDS

Remote sensing

Readout integrated circuits

Infrared radiation

Staring arrays

Process control

Signal processing

Clocks

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