Weak and small target detection method based on video satellite data identification characteristics

Abstract

The invention discloses a weak and small target detection method based on video satellite data identification features. According to the method, the identification features are fully utilized to improve the detection precision of a weak and small target. A symmetric semantic segmentation model and a self-coding network are adopted to extract identification features of a target, a top-down adjustment mechanism is utilized to perform data fusion on image features and the identification features of the target, then background enhancement is performed through an attention mechanism, and the contrast difference between the target and the background is further increased; a multi-scale semantic analysis strategy is introduced, and a pyramid model is adopted to extract weak and small targets in video satellite data. The method focuses on the extraction and introduction of weak and small target identification features, further increases the difference between the target and the background through employing an attention mechanism, and can greatly improve the detection precision of the weak and small target in a video satellite.

Description

technical field [0001] The invention relates to the technical field of remote sensing information processing, in particular to a weak and small target detection method based on identification features of video satellite data. Background technique [0002] In the current existing technology, there is already a mature technology for detecting weak and small targets using ground video data. The classic moving target detection methods mainly include frame difference method, background subtraction method and optical flow method. The feature descriptors used in the above method include: Haar features, SIFT features, and HOG features, etc.; classifiers include logistic regression, decision tree, Adaboost, and SVM, etc. The feature extraction algorithm of this type of method is highly dependent on the rationality of manual settings, and its generalization ability is weak, resulting in limited application scenarios. [0003] Using ground video data to detect weak and small targets,...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of weak target detection method based on video satellite data discrimination feature, thus solve the foregoing problems existing in the prior art

Images