Marine mammal echo positioning signal detection method based on image processing

The invention relates to a marine mammal echo positioning signal detection method based on image processing, and belongs to the field of signal processing. According to the method, image filtering and straight line detection are adopted for processing according to the characteristics of approximate straight lines of animal echo positioning signals in a time-frequency diagram, and a random forest detection model is further adopted for improving the detection accuracy. According to the method, the acquired data is processed by adopting the image processing method and the random forest detection model according to the characteristic that the echo positioning signal of the marine mammal is similar to a straight line, and under the condition of a low signal-to-noise ratio, not only is relatively high accuracy kept, but also a higher recall rate is achieved. 本发明涉及一种基于图像处理的海洋哺乳动物回声定位信号检测方法，属于信号处理领域。该方法根据动物回声定位信号在时频图中近似直线的特征采用图像滤波和直线检测进行处理，并进一步采用随机森林检测模型提升检测准确率。本发明方法根据海洋哺乳动物回声定位信号似直线的特征，采用图像处理方法和随机森林检测模型对采集的数据进行处理，在低