Ms. Shuang Yu Profile

Shuang Yu

at Kunming Institute of Physics

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Proceedings Article | 23 November 2024 Paper

An image-crosstalk correction method for infrared focal plane array detector based on RC model

Yating Li, Wenqing Hong, Lan Su, Xiaodong Wang, Yifan Qi, Lizhen Liu, Shuang Yu

Proceedings Volume 13239, 1323906 (2024) https://doi.org/10.1117/12.3037241

KEYWORDS: Crosstalk, Infrared detectors, Infrared imaging, Staring arrays, Detector arrays, Infrared sensors, Image processing

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In recent years, domestic infrared focal plane array detectors have made comprehensive progress, but image-crosstalk remains a major unresolved issue. Research on infrared image-crosstalk correction has mostly focused on the detector fabrication, and methods for correcting image-crosstalk through image processing are relatively few. We address the crosstalk phenomenon commonly occurring in domestic infrared focal plane array detectors, analyze the crosstalk generation mechanism at the readout circuit level, and establish an RC system crosstalk model. Given this foundation, we further propose an image-crosstalk correction method for infrared focal plane array detector based on RC model, which can directly correct crosstalk images through image processing. Firstly, we simulate the degradation and restoration of a step function using the proposed crosstalk correction principles, thereby validating the effectiveness of the method conceptually. Subsequently, the proposed method is applied to correct images of rod targets of three different sizes that are actually collected, with both qualitative and quantitative analysis demonstrating the effectiveness of our imagecrosstalk correction method. The study shows that this method provides a simple and practical image processing solution for the crosstalk problem in domestic analog infrared focal plane array detectors.

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