Abstract:Aiming at the problems of large scope of truck blind zone, complex background, large variation of target scale, poor effect of existing truck blind spot detection methods and easy to miss recognition, an improved YOLOv8n truck blind zone target detection algorithm is proposed. A mixed local channel attention module(MLCA) is added to the backbone network to improve the local spatial feature extraction capability of the network; the feature fusion network is improved by the scale sequence feature fusion module(SSFF) to fuse the deep semantic information of multiple scales of the image, and the triple feature encoding module(TFE) to capture the local details of the target; and finally, Inner-CIoU is adopted as the bezel loss function to improve the border detection accuracy. The experimental results show that on the self-built vehicle-pedestrian dataset, the proposed algorithm improves the average detection accuracy by 3.14% compared with the traditional YOLOv8n algorithm, and it has better detection capability in target detection in the blind zone of trucks.