扩散模型

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都在聊轨迹预测,到底如何与自动驾驶结合?
自动驾驶之心· 2025-08-16 00:03
Core Viewpoint - The article emphasizes the significant role of diffusion models in enhancing the capabilities of autonomous driving systems, particularly in data diversity, perception robustness, and decision-making under uncertainty [2][3]. Group 1: Applications of Diffusion Models - Diffusion models improve 3D occupancy prediction, outperforming traditional methods, especially in occluded or low-visibility areas, thus aiding downstream planning tasks [5]. - Conditional diffusion models are utilized for precise image translation in driving scenarios, enhancing system understanding of various road environments [5]. - Stable diffusion models efficiently predict vehicle trajectories, significantly boosting the predictive capabilities of autonomous driving systems [5]. - The DiffusionDrive framework innovatively applies diffusion models to multimodal action distribution, addressing uncertainties in driving decisions [5]. Group 2: Data Generation and Quality - Diffusion models effectively tackle the challenges of insufficient diversity and authenticity in natural driving datasets, providing high-quality synthetic data for autonomous driving validation [5]. - Future explorations will include video generation to further enhance data quality, particularly in 3D data annotation [5]. Group 3: Recent Research Developments - The dual-conditioned temporal diffusion model (DcTDM) generates realistic long-duration driving videos, outperforming existing models by over 25% in consistency and frame quality [7]. - LD-Scene integrates large language models with latent diffusion models for user-controllable adversarial scenario generation, achieving state-of-the-art performance in generating high adversariality and diversity [11]. - DualDiff enhances multi-view driving scene generation through a dual-branch conditional diffusion model, achieving state-of-the-art performance in various downstream tasks [14][34]. Group 4: Traffic Simulation and Scenario Generation - DriveGen introduces a novel traffic simulation framework that generates diverse traffic scenarios, supporting customized designs and improving downstream algorithm performance [26]. - Scenario Dreamer utilizes a vectorized latent diffusion model for generating driving simulation environments, demonstrating superior performance in realism and efficiency [28][31]. - AdvDiffuser generates adversarial safety-critical driving scenarios, enhancing transferability across different systems while maintaining high realism and diversity [68]. Group 5: Safety and Robustness - AVD2 enhances understanding of accident scenarios through the generation of accident videos aligned with natural language descriptions, significantly advancing accident analysis and prevention [39]. - Causal Composition Diffusion Model (CCDiff) improves the generation of closed-loop traffic scenarios by incorporating causal structures, demonstrating enhanced realism and user preference alignment [44].
一文尽览!扩散模型在自动驾驶基础模型中的应用汇总,30+工作都在这里了~
自动驾驶之心· 2025-07-31 23:33
Core Insights - The article discusses the significant role of diffusion models in the development of autonomous driving technologies, highlighting their ability to enhance data diversity, improve perception system robustness, and assist decision-making under uncertainty [2][3]. Group 1: Diffusion Models in Autonomous Driving - Diffusion models have shown promising applications in autonomous driving, particularly in generating diverse and physically constrained results from complex data distributions [2]. - The introduction of the Dual-Conditioned Temporal Diffusion Model (DcTDM) allows for the generation of realistic long-duration driving videos, addressing challenges such as limited data quality and high costs [3][4]. - The performance of DcTDM has been evaluated, demonstrating over 25% improvement in consistency and frame quality compared to other video diffusion models [3]. Group 2: Applications in Perception and Decision-Making - In perception, diffusion models significantly outperform traditional methods in 3D occupancy prediction, especially in occluded or low-visibility areas, thereby supporting downstream planning tasks [4]. - The Stable Diffusion Model effectively predicts vehicle trajectories, enhancing the predictive capabilities of autonomous driving systems [4]. - The DiffusionDrive framework utilizes diffusion models to model multimodal action distributions, innovating end-to-end autonomous driving applications by addressing uncertainties in driving decisions [4]. Group 3: Data Generation and Quality Improvement - Diffusion models are crucial for generating high-quality synthetic data, addressing the challenges of insufficient diversity and authenticity in natural driving datasets [4]. - The introduction of controllable generation techniques is particularly important for overcoming 3D data annotation challenges, with future explorations into video generation aimed at further enhancing data quality [4]. Group 4: Advanced Frameworks and Innovations - LD-Scene combines large language models with latent diffusion models to generate adversarial driving scenarios, enhancing the controllability and robustness of generated scenes [9]. - DualDiff introduces a dual-branch diffusion model designed to improve multi-view driving scene generation, utilizing occupancy ray sampling for rich semantic information [30]. - DiVE employs a diffusion transformer framework to generate high-fidelity, temporally coherent multi-view videos, achieving state-of-the-art performance in multi-view video generation [19][20]. Group 5: Safety and Critical Scenario Generation - AVD2 enhances understanding of accident scenarios by generating videos aligned with detailed natural language descriptions, contributing to accident analysis and prevention [36]. - AdvDiffuser generates adversarial safety-critical driving scenarios, improving transferability across different systems while maintaining authenticity and diversity [68][69]. - The introduction of Causal Composition Diffusion Model (CCDiff) enhances controllability and realism in generating closed-loop traffic scenarios, significantly outperforming existing methods [41].
研一结束了,还什么都不太懂。。。
自动驾驶之心· 2025-07-24 06:46
Core Viewpoint - The article emphasizes the evolving landscape of the autonomous driving industry, highlighting the need for professionals to adapt their skill sets to align with current industry demands, particularly in areas like end-to-end VLA (Vision-Language Action) models and traditional control systems [4][6]. Summary by Sections Industry Trends - The demand for talent in autonomous driving is shifting towards candidates with strong backgrounds and skills in cutting-edge technologies, such as end-to-end VLA models, while traditional control systems still have job opportunities [2][4]. - The article notes that the technology stack in autonomous driving is becoming more standardized, reducing the diversity of recruitment directions compared to previous years [3][4]. Skill Development - Professionals are encouraged to upgrade their technical skills to meet the evolving demands of the industry, with a focus on continuous learning and adaptation [4][6]. - The article suggests that anxiety about job prospects can be mitigated by actively seeking out learning resources and engaging with communities that focus on the latest advancements in autonomous driving technology [4][6]. Learning Resources - The article mentions various learning modules available in the "Autonomous Driving Heart Knowledge Planet," which includes cutting-edge topics such as world models, trajectory prediction, and large models [5][11]. - It highlights the availability of videos and materials for beginners and advanced learners, aimed at helping individuals navigate the complexities of the autonomous driving field [4][5]. Community Engagement - The "Autonomous Driving Heart Knowledge Planet" is described as a significant community for knowledge sharing, featuring nearly 4000 members and over 100 industry experts, providing a platform for discussion and problem-solving [8][11]. - The community focuses on various subfields within autonomous driving, including perception, mapping, planning, and control, offering a comprehensive approach to learning and professional development [11][13].
ASIC,大救星!
半导体行业观察· 2025-07-20 04:06
Group 1 - The article highlights a growing "computational crisis" driven by the increasing demand for artificial intelligence (AI), characterized by unsustainable energy consumption, high training costs, and limitations of traditional semiconductor technologies [1][2][3]. - The energy consumption of data centers supporting AI operations is projected to rise from approximately 200 terawatt-hours (TWh) in 2023 to 260 TWh by 2026, accounting for about 6% of total electricity demand in the U.S. [3][5]. - The costs associated with training cutting-edge AI models are expected to exceed $1 billion by 2027, indicating a significant supply-demand gap in computational resources [3][5]. Group 2 - The article introduces "physics-based application-specific integrated circuits (ASICs)" as a transformative approach that leverages inherent physical dynamics for computation, aiming to improve energy efficiency and computational throughput [1][6]. - Traditional ASIC designs impose constraints such as statelessness, unidirectionality, determinism, and synchronization, which limit their efficiency. In contrast, physics-based ASICs are designed to utilize or tolerate statefulness, bidirectionality, non-determinism, and asynchrony [9][12][14]. - The performance advantages of physics-based ASICs stem from their ability to relax traditional design constraints, potentially leading to significant energy savings and enhanced computational capabilities [20][21]. Group 3 - The design of physics-based ASICs involves a principled strategy that intersects top-down and bottom-up approaches, focusing on maximizing the overlap between algorithms suitable for specific applications and those that can efficiently run on particular physical structures [22][24]. - Performance metrics for evaluating the efficiency of algorithms on hardware include runtime and energy consumption, with specific ratios defined to assess the effectiveness of algorithms on physics-based ASICs compared to state-of-the-art digital hardware [26][27][28]. - The article discusses the importance of algorithm co-design, emphasizing that algorithms should be tailored to leverage the unique characteristics of the hardware, thereby enhancing performance and efficiency [30][31]. Group 4 - The potential applications of physics-based ASICs span various fields, including scientific simulations, data analysis, and AI, with specific algorithms inspired by physical processes showing promise for enhanced performance [36][39]. - Notable examples of physics-inspired applications include artificial neural networks, diffusion models, sampling methods, and optimization techniques, all of which can benefit from the unique capabilities of physics-based ASICs [40][42][44]. - The article outlines a roadmap for the adoption of physics-based ASICs, emphasizing the need for scalability, integration into heterogeneous systems, and the development of user-friendly software abstractions to facilitate widespread use [48][56][57].
自动驾驶圆桌论坛 | 聊聊自动驾驶上半年都发生了啥?
自动驾驶之心· 2025-07-14 11:30
Core Viewpoint - The article discusses the current state and future directions of autonomous driving technology, highlighting the maturity of certain technologies, the challenges that remain, and the emerging trends in the industry. Group 1: Current Technology Maturity - The introduction of BEV (Bird's Eye View) and OCC (Occupancy) perception methods has matured, with no major players claiming that BEV is unusable [2][13] - The main challenge remains corner cases, where 99% of scenarios are manageable, but complex situations like rural roads and large intersections still pose difficulties [13] - E2E (End-to-End) models have not yet demonstrated clear advantages over two-stage models in practical applications, despite their theoretical appeal [4][5] Group 2: Emerging Technologies - VLA (Vision-Language Alignment) is gaining attention as it simplifies tasks and potentially addresses corner cases more effectively than traditional methods [5][6] - The efficiency of models is a critical issue, with discussions around using smaller models to achieve performance close to larger ones [6][30] - Reinforcement learning has not yet proven to be significantly impactful in autonomous driving, with a need for better simulation environments to validate its effectiveness [7][51] Group 3: Future Directions - There is a consensus that VLA and VLM (Vision-Language Model) will be key areas for future development, focusing on enhancing reasoning capabilities and safety [45][48] - The industry is moving towards a more data-driven approach, where the efficiency of data collection, cleaning, and training will determine competitive advantage [28][40] - The integration of world models and closed-loop simulations is seen as essential for advancing autonomous driving technologies [47][50] Group 4: Industry Perspectives - The shift towards VLA/VLM is viewed as a necessary evolution, with the potential to improve user experience and safety in autonomous vehicles [28][45] - The debate between deepening expertise in autonomous driving versus transitioning to embodied intelligence reflects the industry's evolving landscape and personal career choices [22][27] - The current focus on safety and robustness in L4 (Level 4) autonomous driving indicates a divergence in technical approaches between L2+ and L4 players [25][36]
学长让我最近多了解些技术栈,不然秋招难度比较大。。。。
自动驾驶之心· 2025-07-10 10:05
Core Viewpoint - The article emphasizes the rapid evolution of autonomous driving technology, highlighting the need for professionals to adapt by acquiring a diverse skill set that includes knowledge of cutting-edge models and practical applications in production environments [2][3]. Group 1: Industry Trends - The demand for composite talent in the autonomous driving sector is increasing, as companies seek individuals who are knowledgeable in both advanced technologies and practical production tasks [3][5]. - The industry has seen a shift from focusing solely on traditional BEV (Battery Electric Vehicle) knowledge to requiring familiarity with advanced concepts such as world models, diffusion models, and end-to-end learning [2][3]. Group 2: Educational Resources - The article promotes a knowledge-sharing platform that offers free access to valuable educational resources, including video tutorials on foundational and advanced topics in autonomous driving [5][6]. - The platform aims to build a community of learners and professionals in the field, providing a comprehensive learning roadmap and exclusive job opportunities [5][6]. Group 3: Technical Focus Areas - Key technical areas highlighted include visual language models, world models, diffusion models, and end-to-end autonomous driving systems, with resources available for further exploration [7][30]. - The article lists various datasets and methodologies relevant to autonomous driving, emphasizing the importance of data in training and evaluating models [19][22]. Group 4: Future Directions - The community aims to explore the integration of large models with autonomous driving technologies, focusing on how these advancements can enhance decision-making and navigation capabilities [5][28]. - Continuous updates on industry trends, technical discussions, and job market insights are part of the community's offerings, ensuring members stay informed about the latest developments [5][6].
元宇宙数字人技术新飞跃:交互、感知与虚拟现实的全面升级
Sou Hu Cai Jing· 2025-07-10 02:22
Group 1 - The integration of artificial intelligence and digital human technology is leading a revolutionary change in interaction, with generative AI technologies like GPT series and diffusion models enhancing the capabilities and realism of digital humans [1] - Digital humans are no longer limited to static displays; they can actively participate in dynamic scenarios such as live streaming and customer service, showcasing significant application potential [1] - The continuous improvement in autonomous learning and emotional perception capabilities of digital humans allows for better understanding of user needs and more personalized services [1] Group 2 - The rapid development of virtual reality technology provides unprecedented realism and three-dimensionality to digital humans, enhancing user immersion [3] - The maturity of multimodal interaction technologies, including voice recognition and natural language processing, enables digital humans to process information from various channels, resulting in more natural human-computer interaction [3] - The application of big data analytics allows digital humans to create precise user profiles, leading to better understanding of audience preferences and more personalized service offerings [3] Group 3 - Upgrades in hardware infrastructure, such as 5G, cloud rendering, and VR/AR devices, create low-latency and highly immersive environments for digital humans [3] - Although brain-computer interface technology is still in its early stages, its potential is gaining significant attention in the industry, promising new interaction methods for digital humans in the future [3]
最近,一些自驾公司疯狂往一线『输送』人才。。。
自动驾驶之心· 2025-06-26 12:56
Core Viewpoint - The article discusses the current challenges in the autonomous driving industry, including layoffs and the shifting of roles from research and development to sales, indicating a significant pressure on revenue and the need for companies to adapt to market demands [2][3][4]. Group 1: Industry Challenges - Recent layoffs in the autonomous driving sector have affected not only existing employees but also recent graduates, highlighting the industry's struggle with revenue generation [2][4]. - Companies are increasingly moving employees from R&D roles to frontline sales positions as a strategy to cope with financial pressures, suggesting that sales roles are now prioritized for revenue generation [3][4]. - The article emphasizes that the pressure on sales performance is leading to a reevaluation of workforce allocation, with many companies facing the risk of further layoffs if sales targets are not met [3][4]. Group 2: Recommendations for Professionals - For those facing layoffs, it is advised to refine resumes and consider learning new technical skills, as the job market may become competitive with many individuals seeking new positions simultaneously [5][6]. - Individuals who are transitioned to sales roles are cautioned against fully committing to these positions, as it may limit their future opportunities in more technical roles, particularly in algorithm development [7]. - The article encourages professionals to use this period as a time for reflection and preparation for future job opportunities, suggesting that networking and skill development are crucial during this transitional phase [6][7]. Group 3: Community and Resources - The article promotes a community platform that offers resources for learning and job opportunities in the autonomous driving field, aiming to build a network of professionals and share industry insights [8]. - It highlights the availability of comprehensive learning materials, including courses and recruitment information, to support individuals in navigating their careers in the evolving landscape of autonomous driving [8].
正在筹划一个万人的自动驾驶&具身技术社区~
自动驾驶之心· 2025-06-25 09:54
Core Viewpoint - The article emphasizes the establishment of a comprehensive community for autonomous driving and embodied intelligence, aiming to gather industry professionals and facilitate rapid problem-solving and knowledge sharing within the sector [2][4]. Group 1: Community Development - The goal is to create a community of 10,000 members focused on intelligent driving and embodied intelligence within three years, welcoming contributions from talented individuals [2]. - The community will serve as a bridge connecting academia, products, and recruitment, forming a closed loop in teaching and research [2][4]. - The community will provide the latest industry technology updates, technical discussions, and job sharing opportunities [2][3]. Group 2: Knowledge Sharing and Resources - The "Autonomous Driving Heart Knowledge Planet" is designed as a technical exchange platform for academic and engineering issues, attracting students and professionals from top universities and companies [4][11]. - The community has established connections with numerous companies for recruitment, including Xiaomi, Horizon, and NIO, facilitating direct resume submissions [4][11]. - Members will have access to a variety of learning modules, from basic to advanced, covering algorithm explanations and code implementations [4][11]. Group 3: Technical Focus Areas - By 2025, the focus will be on advanced technology areas such as visual large language models (VLM), end-to-end trajectory prediction, and 3D generative simulation [6][10]. - The community has developed over 30 learning pathways covering various subfields of autonomous driving, including perception, mapping, and AI model deployment [11][16]. - Regular live sessions will feature top researchers and industry experts discussing practical applications and research advancements in autonomous driving [18][19]. Group 4: Engagement and Interaction - The community encourages active participation, with weekly engagement metrics ranking among the top 20 in the country, fostering a collaborative learning environment [12]. - Members can freely ask questions and engage in discussions, enhancing their learning experience and networking opportunities [11][12]. - The platform offers exclusive rights to members, including access to academic advancements, expert Q&A, and discounts on paid courses [14].
华为车BU招聘(端到端/感知模型/模型优化等)!岗位多多~
自动驾驶之心· 2025-06-24 07:21
Core Viewpoint - The article emphasizes the rapid evolution and commercialization of autonomous driving technologies, highlighting the importance of community engagement and knowledge sharing in this field [9][14][19]. Group 1: Job Opportunities and Community Engagement - Huawei is actively recruiting for various positions in its autonomous driving division, including roles focused on end-to-end model algorithms, perception models, and efficiency optimization [1][2]. - The "Autonomous Driving Heart Knowledge Planet" serves as a platform for technical exchange, targeting students and professionals in the autonomous driving and AI sectors, and has established connections with numerous industry companies for job referrals [7][14][15]. Group 2: Technological Trends and Future Directions - The article outlines that by 2025, the focus will be on advanced technologies such as visual large language models (VLM), end-to-end trajectory prediction, and 3D generative simulations, indicating a shift towards more integrated and intelligent systems in autonomous driving [9][22]. - The community has developed over 30 learning pathways covering various subfields of autonomous driving, including perception, mapping, and AI model deployment, which are crucial for industry professionals [19][21]. Group 3: Educational Resources and Content - The knowledge platform offers exclusive rights to members, including access to academic advancements, professional Q&A sessions, and discounts on courses, fostering a comprehensive learning environment [17][19]. - Regular webinars featuring experts from top conferences and companies are organized to discuss practical applications and research in autonomous driving, enhancing the learning experience for participants [21][22].