


After Li Feifei's 'spatial intelligence”, Shanghai Jiao Tong University, Zhiyuan University, Peking University, etc. proposed the large spatial model SpatialBot

The AIxiv column is a column where this site publishes academic and technical content. In the past few years, the AIxiv column of this site has received more than 2,000 reports, covering top laboratories from major universities and companies around the world, effectively promoting academic exchanges and dissemination. If you have excellent work that you want to share, please feel free to contribute or contact us for reporting. Submission email: liyazhou@jiqizhixin.com; zhaoyunfeng@jiqizhixin.com
Paper title: SpatialBot: Precise Depth Understanding with Vision Language Models Paper link: https://arxiv.org/abs/2406.13642 Project homepage: https://github. com/BAAI-DCAI/SpatialBot


Existing models cannot directly understand the depth map input. For example, the image encoder CLIP/SigLIP is trained on RGB images without ever seeing depth maps. Most of the existing large model data sets can be analyzed and answered using only RGB. Therefore, if the existing data is simply changed to RGBD input, the model will not actively index knowledge into the depth map. Specially designed tasks and QA are required to guide the model to understand the depth map and use depth information.
低レベルでは、深度マップを理解するようにモデルをガイドし、深度マップから直接情報をガイドします。
-
中レベルでは、モデルに深度を RGB に合わせます。 高レベルでの複数の深度の設計関連タスクについては、50,000 個のデータに注釈が付けられ、モデルが深度マップの理解に基づいて深度情報を使用してタスクを完了できるようにします。タスクには、空間的な位置関係、オブジェクトのサイズ、オブジェクトが接触しているかどうか、ロボット シーンの理解などが含まれます。 - What dospatialbot contains? でのダイアログの例
1. モデルの深度マップを入力する: 屋内と屋外のタスクを考慮するために、統合された深度マップのエンコード方法が必要です。屋内のグラブやナビゲーションのタスクでは、ミリメートルレベルの精度が必要な場合があります。屋外のシーンでは、それほど正確である必要はありませんが、100 メートルを超える深度値の範囲が必要な場合があります。 Ordinal Encoding は従来のビジョン タスクのエンコードに使用されますが、Ordinal の値を加算または減算することはできません。すべての深度情報を可能な限り保存するために、SpatialBot は、1 mm から 131 m までの範囲のミリメートル単位の深度を直接使用し、uint24 または 3 チャネル uint8 を使用してこれらの値を保存します。
1. SpatialBot は 3B から 8B までの複数のベース LLM に基づいています。 SpatialQA で空間知識を学習することにより、SpatialBot は、一般的に使用される MLLM データセット (MME、MMBench など) でのパフォーマンスの大幅な向上も実証します。
データをマークするにはどうすればよいですか?
- 空間関係の理解と推論;
- ロボット シーンの理解: Open X 実施形態のシーン、含まれるオブジェクト、および考えられるタスクと、この記事で収集したロボット データを説明し、オブジェクトと境界ボックスに手動でラベルを付けます。ロボットの。
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