Falling Behavior Detection Based on Improved YOLOv5s
In order to achieve the real-time detection of fall behavior among power plant personnel,and prevent them from falling and falling into a coma,it cannot be detected and rescued in a timely manner,an improved YOLOv5s falling behavior detection algo-rithm network is proposed to address the issues of insufficient real-time detection and feature extraction capabilities.The introduction of the SKAttention module in the YOLOv5s model enables the network to automatically utilize the information captured by the effec-tive receptive fields for classification.This new deep structure allows the CNN to perform dynamic selection mechanisms on the convo-lutional core,thereby adaptively adjusting the size of its receptive field;By combining adaptively spatial feature fusion(ASFF)and fully utilizing different features,and introducing weight parameters into the algorithm,based on multi-level functions,the accuracy of underwater target recognition is achieved;The spatial pyramid pooling structure with context sensitive pyramid convolution(SPPFC-SPC)is added to greatly reduce inference time.Experimental results show that compared to the original YOLOv5s,the new network improves the mean average precision(mAP)by 2.1%,and the recall rate by 16%.The improved network is more powerful in the perception of details and spatial modeling,and can more accurately capture the abnormal falling behaviors,significantly improving a detection effect.