Motion scene imaging method and system based on area array CMOS image sensor

Abstract

The invention discloses a motion scene imaging method and a motion scene imaging system based on an area array CMOS image sensor. The motion scene imaging method comprises the steps of: integrating encoding exposure and digital domain TDI techniques, regarding a encoding exposure time sequence as a frame, conducting digital domain time delay integration of different series in each single exposure process, processing a digital image formed by the CMOS image sensor to obtain a single exposure image after image motion compensation, superposing a plurality of the single exposure images after image motion compensation to obtain an encoding exposure image, and carrying out deconvolution operation to obtain a clear target image finally. The motion scene imaging method based on area array CMOS image sensor provided by the invention can avoid the problems of single exposure image motion blur and a limited digital domain TDI dynamic range of encoding exposure during high-speed motion scene imaging, thus the area array CMOS image sensor can be applied to high-speed motion scene imaging, eliminate the image shift blur and improve the imaging quality.

Description

technical field [0001] The present invention relates to the field of imaging technology, in particular to a moving scene imaging method and system based on an area array CMOS (Complementary Metal Oxide Semiconductor, Complementary Metal Oxide Semiconductor) image sensor. Background technique [0002] The key problems to be solved in research and application fields such as aerospace and aviation remote sensing include high-speed motion scene imaging and high dynamic range imaging. The so-called moving scene is a general term for the relative motion between the imaging subject, namely the camera, and the imaging object, namely the target. Taking aerospace remote sensing applications as an example, image motion blur is one of the most prominent problems in remote sensing imaging, whether it is an early return film camera or a transmission digital camera that dominates today. The reason for the existence of image motion blur is: within the exposure time of the camera, the image...

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Problems solved by technology

[0004] In view of this, the present invention provides a moving scene imaging method and system based on an area array CMOS image sensor, so as to solve the problem of image motion blur in the high-speed moving scene imaging of the CMOS image sensor in the prior art

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