DR-MV3D-R-SFT / README.md
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metadata
license: apache-2.0
base_model: Qwen/Qwen2.5-VL-3B-Instruct
base_model_relation: finetune
library_name: transformers
pipeline_tag: image-text-to-text
language:
  - en
datasets:
  - MLL-Lab/MindCube
tags:
  - multi-view
  - spatial-reasoning
  - 3d-reasoning
  - visual-question-answering
  - cognitive-map

DR-MV3D (SFT)

Official checkpoint for Dense Reward for Multi-View 3D Reasoning with Global Maps and Local Views (ECCV 2026).

Paper 路 Project page 路 Code 路 SFT + GRPO checkpoint

DR-MV3D answers questions about a 3D scene shown from several viewpoints. This is the supervised fine-tuning stage: Qwen2.5-VL-3B-Instruct trained on map-grounded reasoning traces. For general use prefer the final SFT + GRPO checkpoint.

Usage

The model expects the structured task prompt it was trained with, and produces a cognitive map, per-view ego-centric maps, a reasoning chain and the answer. See the GitHub repository for the prompt format, data preparation, inference and evaluation.

python scripts/run_inference.py \
  --model-path jihochoi/DR-MV3D-R-SFT \
  -i data/prompts/MindCube_tinybench_drmv3d.jsonl \
  -o results/tinybench_responses.jsonl \
  --image-root data --batch-size 8

License

The weights are a fine-tune of Qwen2.5-VL-3B-Instruct and are released under Apache-2.0, the base model's license. The code is MIT-licensed.

Citation

@inproceedings{drmv3d2026,
  title={Dense Reward for Multi-View 3D Reasoning with Global Maps and Local Views},
  author={Choi, Jiho and Lee, Seonho and Park, Seojeong and Shim, Hyunjung},
  booktitle={Proceedings of the European Conference on Computer Vision (ECCV)},
  year={2026},
  eprint={2606.23557},
  archivePrefix={arXiv},
  primaryClass={cs.CV}
}