Group 1 - The core viewpoint of the article emphasizes the significance of multi-sensor fusion perception (MSFP) in embodied AI, highlighting its role in enhancing perception capabilities and decision-making accuracy [5][6][66] - Embodied AI is defined as an intelligent form that utilizes physical entities as carriers to achieve autonomous decision-making and action capabilities in dynamic environments, with applications in autonomous driving and robotic clusters [6][7] - The article discusses the necessity of multi-sensor fusion due to the varying performance of different sensors under different environmental conditions, which can lead to more robust perception and accurate decision-making [7][8] Group 2 - The article outlines the limitations of current research, noting that existing surveys often focus on single tasks or fields, making it difficult for researchers in other related tasks to benefit [12][13] - It identifies challenges at the data level, model level, and application level, including data heterogeneity, temporal asynchrony, and sensor failures [12][66] - The article presents various types of sensor data, including camera data, LiDAR data, and mmWave radar data, detailing their characteristics and limitations [11][13] Group 3 - Multi-modal fusion methods are highlighted as a key area of research, aiming to integrate data from different sensors to reduce perception blind spots and achieve comprehensive environmental awareness [19][20] - The article categorizes fusion methods into point-level, voxel-level, region-level, and multi-level fusion, each with specific techniques and applications [21][29] - Multi-agent fusion methods are discussed, emphasizing the advantages of collaborative perception among multiple agents to enhance robustness and accuracy in complex environments [33][36] Group 4 - Time series fusion is identified as a critical component of MSFP systems, enhancing perception continuity and spatiotemporal consistency by integrating multi-frame data [49][51] - The article introduces query-based time series fusion methods, which have become mainstream due to the rise of transformer architectures in computer vision [53][54] - Multi-modal large language models (MM-LLM) are explored for their role in processing and integrating data from various sources, although challenges remain in their practical application [58][59] Group 5 - The article concludes by addressing the challenges faced by MSFP systems, including data quality, model fusion strategies, and real-world adaptability [76][77] - Future work is suggested to focus on developing high-quality datasets, effective fusion strategies, and adaptive algorithms to improve the performance of MSFP systems in dynamic environments [77][68]

Core Insights - The article emphasizes the significance of embodied AI and multi-sensor fusion perception (MSFP) as a critical pathway to achieving general artificial intelligence (AGI) through real-time environmental perception and autonomous decision-making [3][4]. Group 1: Importance of Embodied AI and Multi-Sensor Fusion - Embodied AI represents a form of intelligence that operates through physical entities, enabling autonomous decision-making and action capabilities in dynamic environments, with applications in autonomous driving and robotic swarm intelligence [3]. - Multi-sensor fusion is essential for robust perception and accurate decision-making in embodied AI systems, integrating data from various sensors like cameras, LiDAR, and radar to achieve comprehensive environmental awareness [3][4]. Group 2: Limitations of Current Research - Existing AI-based MSFP methods have shown success in fields like autonomous driving but face inherent challenges in embodied AI applications, such as the heterogeneity of cross-modal data and temporal asynchrony between different sensors [4][7]. - Current reviews often focus on single tasks or research areas, limiting their applicability to researchers in related fields [7][8]. Group 3: Structure and Contributions of the Research - The article organizes MSFP research from various technical perspectives, covering different perception tasks, sensor data types, popular datasets, and evaluation standards [8]. - It reviews point-level, voxel-level, region-level, and multi-level fusion methods, focusing on collaborative perception among multiple embodied agents and infrastructure [8][21]. Group 4: Sensor Data and Datasets - Various sensor types are discussed, including camera data, LiDAR, and radar, each with unique advantages and challenges in environmental perception [10][12]. - The article presents several datasets used in MSFP research, such as KITTI, nuScenes, and Waymo Open, detailing their modalities, scenarios, and the number of frames [12][13][14]. Group 5: Perception Tasks - Key perception tasks include object detection, semantic segmentation, depth estimation, and occupancy prediction, each contributing to the overall understanding of the environment [16][17]. Group 6: Multi-Modal Fusion Methods - The article categorizes multi-modal fusion methods into point-level, voxel-level, region-level, and multi-level fusion, each with specific techniques to enhance perception robustness [21][22][23][24][28]. Group 7: Multi-Agent Fusion Methods - Collaborative perception techniques are highlighted as essential for integrating data from multiple agents and infrastructure, addressing challenges like occlusion and sensor failures [35][36]. Group 8: Time Series Fusion - Time series fusion is identified as a key component of MSFP systems, enhancing perception continuity across time and space through various query-based fusion methods [38][39]. Group 9: Multi-Modal Large Language Model (LLM) Fusion - The integration of multi-modal data with LLMs is explored, showcasing advancements in tasks like image description and cross-modal retrieval, with new datasets designed to enhance embodied AI capabilities [47][50].