PixelCraft: A Multi-Agent System for High-Fidelity Visual Reasoning on Structured Images
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866918150806700032 |
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| author | Zhang, Shuoshuo Li, Zijian Zhang, Yizhen Fu, Jingjing Song, Lei Bian, Jiang Zhang, Jun Yang, Yujiu Wang, Rui |
| author_facet | Zhang, Shuoshuo Li, Zijian Zhang, Yizhen Fu, Jingjing Song, Lei Bian, Jiang Zhang, Jun Yang, Yujiu Wang, Rui |
| contents | Structured images (e.g., charts and geometric diagrams) remain challenging for multimodal large language models (MLLMs), as perceptual slips can cascade into erroneous conclusions. Intermediate visual cues can steer reasoning; however, existing cue-based methods are constrained with low-fidelity image processing and linear, rigid reasoning patterns, limiting their effectiveness on complex structured-image tasks. In this paper, we propose PixelCraft, a novel multi-agent system for high-fidelity image processing and flexible visual reasoning on structured images. The system comprises a dispatcher, a planner, a reasoner, critics, and a set of visual tool agents. To achieve high-fidelity processing, we construct a high-quality corpus and fine-tune an MLLM into a grounding model, whose pixel-level localizations are integrated with traditional computer vision (CV) algorithms in tool agents. Building on this foundation, PixelCraft facilitates flexible visual reasoning through a dynamic three-stage workflow of tool selection, agent discussion, and self-criticism. Moreover, unlike prior linear reasoning patterns that simply append historical images, PixelCraft maintains an image memory to allow the planner to adaptively revisit earlier visual steps, explore alternative reasoning branches, and dynamically adjust the reasoning trajectory during discussion. Extensive experiments on challenging chart and geometry benchmarks demonstrate that PixelCraft significantly improves visual reasoning performance for advanced MLLMs, setting a new standard for structured image reasoning. Our code will be available at https://github.com/microsoft/PixelCraft. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_25185 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | PixelCraft: A Multi-Agent System for High-Fidelity Visual Reasoning on Structured Images Zhang, Shuoshuo Li, Zijian Zhang, Yizhen Fu, Jingjing Song, Lei Bian, Jiang Zhang, Jun Yang, Yujiu Wang, Rui Computer Vision and Pattern Recognition Structured images (e.g., charts and geometric diagrams) remain challenging for multimodal large language models (MLLMs), as perceptual slips can cascade into erroneous conclusions. Intermediate visual cues can steer reasoning; however, existing cue-based methods are constrained with low-fidelity image processing and linear, rigid reasoning patterns, limiting their effectiveness on complex structured-image tasks. In this paper, we propose PixelCraft, a novel multi-agent system for high-fidelity image processing and flexible visual reasoning on structured images. The system comprises a dispatcher, a planner, a reasoner, critics, and a set of visual tool agents. To achieve high-fidelity processing, we construct a high-quality corpus and fine-tune an MLLM into a grounding model, whose pixel-level localizations are integrated with traditional computer vision (CV) algorithms in tool agents. Building on this foundation, PixelCraft facilitates flexible visual reasoning through a dynamic three-stage workflow of tool selection, agent discussion, and self-criticism. Moreover, unlike prior linear reasoning patterns that simply append historical images, PixelCraft maintains an image memory to allow the planner to adaptively revisit earlier visual steps, explore alternative reasoning branches, and dynamically adjust the reasoning trajectory during discussion. Extensive experiments on challenging chart and geometry benchmarks demonstrate that PixelCraft significantly improves visual reasoning performance for advanced MLLMs, setting a new standard for structured image reasoning. Our code will be available at https://github.com/microsoft/PixelCraft. |
| title | PixelCraft: A Multi-Agent System for High-Fidelity Visual Reasoning on Structured Images |
| topic | Computer Vision and Pattern Recognition |
| url | https://arxiv.org/abs/2509.25185 |