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HDR image formation from CMOS coupled with MCP image intensifier

P. MIHAILOVIC1,* , M. BARJAKTAROVIC1, S. PETRICEVIC1

Affiliation

  1. School of Electrical Engineering, University of Belgrade, Bulevar kralja Aleksandra 73, Serbia

Abstract

Images obtained from image intensifier (II) tubes offer good insight into objects illuminated at low light levels. Since the dynamic range of II is very high, it is possible to construct high dynamic range images using information on the II tube gain when the screen image is recorded using a CMOS sensor. This paper presents a method for creating the best array of images for high dynamic range (HDR) image formation. In this method the microchannel plate screen current is measured to detect sudden HDR image appearance. A night vision module microcontroller commands CMOS camera exposure times during the steep change of microchannel plate gain. Test results demonstrate good quality images in high contrast environments.

Keywords

Image intensifier, High dynamic range images, Automatic brightness control, Micro channel plate gain control.

Citation

P. MIHAILOVIC, M. BARJAKTAROVIC, S. PETRICEVIC, HDR image formation from CMOS coupled with MCP image intensifier, Optoelectronics and Advanced Materials - Rapid Communications, 15, 9-10, September-October 2021, pp.433-441 (2021).

Submitted at: April 6, 2021

Accepted at: Oct. 7, 2021