Infrared scene time-sensitive weak and small target detection method and device based on space-time tensor

Abstract

The invention discloses an infrared scene time-sensitive weak and small target detection method and device based on space-time tensor, and can solve the technical problem of time-sensitive infrared weak and small target detection in a complex scene which does not meet a low-rank hypothesis. The method comprises the following steps: constructing a first problem model for solving low-rank background component information and sparse target component information of an infrared image; determining a prior weight of the infrared image based on corner information and edge information of the infrared image, and converting the first problem model into a second problem model; constructing a low-rank sparse matrix by adopting a space-time local sampling mode to obtain a tensor, corresponding to a second problem model, of the original infrared image; substituting the tensor of a to-be-processed infrared image into the second problem model, and separating a background component represented by low-rank matrix information of the to-be-processed infrared image and a target component represented by sparse component information of the to-be-processed infrared image; and taking the target component as a target image, and processing the target image to obtain a detection result.

Description

technical field [0001] The invention relates to the field of infrared imaging, in particular to a method and device for detecting time-sensitive weak and small targets in an infrared scene based on a space-time tensor. Background technique [0002] Due to the uniqueness of the wavelength band used in infrared imaging, the method of operation is unique. Compared with visible light images, infrared imaging is not limited by the environment, is easy to conceal and can work around the clock. These advantages make infrared imaging of great significance in applications such as early warning and space target detection, and infrared target detection is one of the key technologies. [0003] However, the existing infrared target detection technology still faces huge challenges, especially in the detection of small and weak infrared targets. target, resulting in a lack of obvious and analyzable texture and geometry information for the target. (2) Infrared imaging is easily affected b...

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention provides a space-time tensor-based time-sensitive weak and small target detection method and device in infrared scenes, which can solve the technical problem of time-sensitive infrared weak and small target detection in complex scenes that do not satisfy the low-rank assumption

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