| abstract |
The invention discloses a sea surface ship detection method based on infrared images, which has high detection accuracy, low false alarm rate and strong robustness. The sea surface ship detection method of the present invention includes the following steps: (10) infrared image preprocessing: preprocessing the sea surface image including the ship collected by the infrared detector; (20) Dot-Curve preliminary positioning: preprocessing the preprocessed image The processed infrared image is extracted by Dot-Curve, and the main and sub-axis of the candidate target are obtained; (30) The main and sub-axis correction: Based on the residual analysis theory, the gray curve of the main and sub-axis of the candidate target is fitted, and the main and sub-axis of the candidate target are fitted. Correct the position of the secondary axis; (40) Feature extraction: perform feature extraction on the candidate target, calculate the main and secondary axis texture characteristics and geometric characteristic parameters of the candidate target, and structure the feature set; (50) Target identification: compare the demand item and the interference item. Feature parameters, perform feature analysis and fusion on potential targets, and obtain demand targets. |