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超越英伟达Describe Anything,中科院 & 字节联合提出「GAR」,为DeepSeek-OCR添砖加瓦
NvidiaNvidia(US:NVDA) 3 6 Ke·2025-10-28 07:26

Core Insights - DeepSeek-OCR has introduced a new concept called "Vision as Context Compression," focusing on using OCR capabilities to compress documents through images. The collaboration between the Chinese Academy of Sciences and ByteDance has proposed "Grasp Any Region" (GAR) as a new approach to explore whether natural images can also serve as text compression [1]. Group 1: GAR Capabilities - GAR achieves precise region captioning, providing a potential pathway for constructing dense captions for natural images [2]. - GAR possesses three main capabilities: accurate description of user-specified regions, modeling relationships between multiple regions, and performing complex combinatorial reasoning [5][6]. Group 2: Comparison with Existing Models - GAR demonstrates superior performance in accurately understanding user-specified regions compared to existing models like DAM, which often misidentify objects [9][40]. - GAR can accurately identify and describe very small objects, showcasing its detailed understanding capabilities [11][16]. Group 3: Technical Innovations - The GAR model integrates fine-grained understanding of specified regions while retaining global context, achieved through a novel prompt encoding scheme and Region of Interest (RoI)-aligned feature replay technology [25][28]. - The model's design allows it to focus on details without neglecting the overall context, which is crucial for accurate reasoning about complex relationships between objects [27][30]. Group 4: Data and Training - GAR was trained using a large-scale, high-quality dataset, including 456,000 fine-grained descriptions and 414,000 samples for relational understanding [30][35]. - The training process involved leveraging the Panoptic Scene Graph dataset to enhance multi-region relational reasoning capabilities [32]. Group 5: Benchmark Performance - GAR-8B achieved a score of 59.9 on the GAR-Bench-VQA test set, outperforming advanced models like GPT-4o and approaching the performance of top reasoning models [39]. - In the GAR-Bench-Cap test set, GAR-1B and GAR-8B scored 57.5 and 62.2, respectively, indicating their leading position in generating detailed and accurate local descriptions [41]. Group 6: Applications and Future Potential - GAR can be utilized as a data engine for training multimodal understanding models, enhancing instruction-following capabilities in text-to-image or text-to-video models, and providing precise descriptions for editing tasks [47]. - The model's open-source nature and support for local deployment via Gradio make it accessible for various applications [48].