视觉强化学习最新综述：全领域梳理（新加坡国立&浙大&港中文）

Core Insights - The article discusses the integration of Reinforcement Learning with Computer Vision, marking a paradigm shift in how AI interacts with visual data [3][4] - It highlights the potential for AI to not only understand but also create and optimize visual content based on human preferences, transforming AI from passive observers to active decision-makers [4] Research Background and Overview - The emergence of Visual Reinforcement Learning (VRL) is driven by the successful application of Reinforcement Learning in Large Language Models (LLMs) [7] - The article identifies three core challenges in the field: stability in policy optimization under complex reward signals, efficient processing of high-dimensional visual inputs, and scalable reward function design for long-term decision-making [7][8] Theoretical Foundations of Visual Reinforcement Learning - The theoretical framework for VRL includes formalizing the problem using Markov Decision Processes (MDP), which unifies text and visual generation RL frameworks [15] - Three main alignment paradigms are proposed: RL with human feedback (RLHF), Direct Preference Optimization (DPO), and Reinforcement Learning with Verifiable Rewards (RLVR) [16][18] Core Applications of Visual Reinforcement Learning - The article categorizes VRL research into four main areas: Multimodal Large Language Models (MLLM), Visual Generation, Unified Models, and Visual-Language-Action (VLA) Models [31] - Each area is further divided into specific tasks, with representative works analyzed for their contributions [31][32] Evaluation Metrics and Benchmarking - A layered evaluation framework is proposed, detailing specific benchmarks for each area to ensure reproducibility and comparability in VRL research [44][48] - The article emphasizes the need for effective metrics that align with human perception and can validate the performance of VRL systems [61] Future Directions and Challenges - The article outlines four key challenges for the future of VRL: balancing depth and efficiency in reasoning, addressing long-term RL in VLA tasks, designing reward models for visual generation, and improving data efficiency and generalization capabilities [50][52][54] - It suggests that future research should focus on integrating model-based planning, self-supervised visual pre-training, and adaptive curriculum learning to enhance the practical applications of VRL [57]