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复旦SeerDrive:一种轨迹规划和场景演化的双向建模端到端框架
自动驾驶之心· 2025-10-14 23:33
Core Insights - The article discusses the advancements in end-to-end autonomous driving, specifically focusing on the SeerDrive model, which aims to improve trajectory planning by incorporating bidirectional modeling of trajectory planning and scene evolution [1][3][4]. Group 1: SeerDrive Overview - SeerDrive introduces a bidirectional modeling paradigm that captures scene dynamics while allowing planning results to optimize scene predictions, creating a closed-loop iteration [3][4]. - The overall pipeline of SeerDrive consists of four main modules: feature encoding, future BEV world modeling, future perception planning, and iterative optimization [4]. Group 2: Challenges in Current Systems - Current one-shot paradigms in autonomous driving overlook dynamic scene evolution, leading to inaccurate planning in complex interactions [5]. - Existing systems fail to model the impact of vehicle behavior on the surrounding environment, which is crucial for accurate trajectory planning [5]. Group 3: Technical Components - Feature encoding transforms multimodal sensor inputs and vehicle states into structured features, laying the groundwork for subsequent modeling [8][9]. - Future BEV world modeling predicts scene dynamics by generating future BEV features, balancing efficiency and structured representation [10][13]. Group 4: Planning and Optimization - SeerDrive employs a decoupled strategy for planning, allowing current and future scenes to guide planning separately, thus avoiding representation entanglement [15]. - The iterative optimization process enhances the bidirectional dependency between trajectory planning and scene evolution, leading to improved performance [17]. Group 5: Experimental Results - SeerDrive achieved a PDMS score of 88.9 on the NAVSIM test set, outperforming several state-of-the-art methods [23]. - In the nuScenes validation set, SeerDrive demonstrated an average L2 displacement error of 0.43m and a collision rate of 0.06%, significantly better than competing methods [24]. Group 6: Component Effectiveness - The removal of future perception planning or iterative optimization resulted in a decrease in PDMS scores, indicating the importance of these components for performance enhancement [26]. - The design choices, such as the decoupled strategy and the use of anchored endpoints for future ego feature initialization, proved to be critical for achieving optimal results [30]. Group 7: Limitations and Future Directions - The BEV world model does not leverage the generalization capabilities of foundational models, which could enhance performance in complex scenarios [41]. - Future research may explore the integration of foundational models with planning to improve generalization while maintaining efficiency [41].