Griffon v2: Advancing Multimodal Perception with High-Resolution Scaling and Visual-Language Co-Referring

• URL: http://arxiv.org/abs/2403.09333v1
• Date: Thu, 14 Mar 2024 12:21:37 GMT
• Title: Griffon v2: Advancing Multimodal Perception with High-Resolution Scaling and Visual-Language Co-Referring
• Authors: Yufei Zhan, Yousong Zhu, Hongyin Zhao, Fan Yang, Ming Tang, Jinqiao Wang,
• Abstract summary: We introduce a unified high-resolution generalist model, Griffon v2, enabling flexible object referring with visual and textual prompts. We design a simple and lightweight down-sampling projector to overcome the input tokens constraint in Large Language Models. Experiments demonstrate that Griffon v2 can localize any objects of interest with visual and textual referring, achieve state-of-the-art performance on REC, phrase grounding, and REG tasks, and outperform expert models in object detection and object counting.
• Score: 27.45225442048711
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Large Vision Language Models have achieved fine-grained object perception, but the limitation of image resolution remains a significant obstacle to surpass the performance of task-specific experts in complex and dense scenarios. Such limitation further restricts the model's potential to achieve nuanced visual and language referring in domains such as GUI Agents, Counting and \etc. To address this issue, we introduce a unified high-resolution generalist model, Griffon v2, enabling flexible object referring with visual and textual prompts. To efficiently scaling up image resolution, we design a simple and lightweight down-sampling projector to overcome the input tokens constraint in Large Language Models. This design inherently preserves the complete contexts and fine details, and significantly improves multimodal perception ability especially for small objects. Building upon this, we further equip the model with visual-language co-referring capabilities through a plug-and-play visual tokenizer. It enables user-friendly interaction with flexible target images, free-form texts and even coordinates. Experiments demonstrate that Griffon v2 can localize any objects of interest with visual and textual referring, achieve state-of-the-art performance on REC, phrase grounding, and REG tasks, and outperform expert models in object detection and object counting. Data, codes and models will be released at https://github.com/jefferyZhan/Griffon.

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