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Optimization of Autonomous Driving Image Detection Based on RFAConv and Triplet Attention

arXiv.org Artificial Intelligence

YOLOv8 plays a crucial role in the realm of autonomous driving, owing to its high-speed target detection, precise identification and positioning, and versatile compatibility across multiple platforms. By processing video streams or images in real-time, YOLOv8 rapidly and accurately identifies obstacles such as vehicles and pedestrians on roadways, offering essential visual data for autonomous driving systems. Moreover, YOLOv8 supports various tasks including instance segmentation, image classification, and attitude estimation, thereby providing comprehensive visual perception for autonomous driving, ultimately enhancing driving safety and efficiency. Recognizing the significance of object detection in autonomous driving scenarios and the challenges faced by existing methods, this paper proposes a holistic approach to enhance the YOLOv8 model. The study introduces two pivotal modifications: the C2f_RFAConv module and the Triplet Attention mechanism. Firstly, the proposed modifications are elaborated upon in the methodological section. The C2f_RFAConv module replaces the original module to enhance feature extraction efficiency, while the Triplet Attention mechanism enhances feature focus. Subsequently, the experimental procedure delineates the training and evaluation process, encompassing training the original YOLOv8, integrating modified modules, and assessing performance improvements using metrics and PR curves. The results demonstrate the efficacy of the modifications, with the improved YOLOv8 model exhibiting significant performance enhancements, including increased MAP values and improvements in PR curves. Lastly, the analysis section elucidates the results and attributes the performance improvements to the introduced modules. C2f_RFAConv enhances feature extraction efficiency, while Triplet Attention improves feature focus for enhanced target detection.


Coordinate Attention Explained

#artificialintelligence

The race towards the optimal attention mechanism continues as this year's (arguably) largest computer vision conference CVPR 2021 had another attention mechanism added to the long list. This one is called Coordinate Attention, and was proposed in the paper Coordinate Attention for Efficient Mobile Network Design. At first glance the attention mechanism seems to be a hybrid between Triplet Attention and Strip Pooling, but more specifically targeted for lightweight mobile-deployed networks. We will first take a look at the motivation behind the work and then follow up with a concise background of Triplet Attention (Rotate to Attend: Convolutional Triplet Attention Module) and Strip Pooling (Strip Pooling: Rethinking Spatial Pooling for Scene Parsing). We will then analyze the structure of the proposed mechanism and conclude this article with the results presented in the paper.