NRGS-SLAM: 変形対応3Dガウシアンスプラッティングによる内視鏡向け単眼非剛体SLAM
NRGS-SLAM: Monocular Non-Rigid SLAM for Endoscopy via Deformation-Aware 3D Gaussian Splatting
内視鏡映像の軟組織変形に対応するため、各ガウシアンに学習可能な変形確率を持たせた3Dガウシアンマップと変形対応トラッキングを組み合わせた単眼非剛体SLAMを提案。
詳しい要約
1. どんなもの?
2. 先行研究と比べてどこがすごい?
3. 技術・手法の肝は?
4. どうやって有効だと検証した?
5. 議論はある?
6. 次に読むべき論文は?
※ AIが要旨から生成した要約です。正確性は原文をご確認ください。
著者: Jiwei Shan, Zeyu Cai, Yirui Li, Yongbo Chen, Lijun Han, Yun-hui Liu, Hesheng Wang, Shing Shin Cheng
分類: cs.CV, cs.RO
原文アブストラクト
Visual simultaneous localization and mapping (V-SLAM) is a fundamental capability for autonomous perception and navigation. However, endoscopic scenes violate the rigidity assumption due to persistent soft-tissue deformations, creating a strong coupling ambiguity between camera ego-motion and intrinsic deformation. Although recent monocular non-rigid SLAM methods have made notable progress, they often lack effective decoupling mechanisms and rely on sparse or low-fidelity scene representations, which leads to tracking drift and limited reconstruction quality. To address these limitations, we propose NRGS-SLAM, a monocular non-rigid SLAM system for endoscopy based on 3D Gaussian Splatting. To resolve the coupling ambiguity, we introduce a deformation-aware 3D Gaussian map that augments each Gaussian primitive with a learnable deformation probability, optimized via a Bayesian self-supervision strategy without requiring external non-rigidity labels. Building on this representation, we design a deformable tracking module that performs robust coarse-to-fine pose estimation by prioritizing low-deformation regions, followed by efficient per-frame deformation updates. A carefully designed deformable mapping module progressively expands and refines the map, balancing representational capacity and computational efficiency. In addition, a unified robust geometric loss incorporates external geometric priors to mitigate the inherent ill-posedness of monocular non-rigid SLAM. Extensive experiments on multiple public endoscopic datasets demonstrate that NRGS-SLAM achieves more accurate camera pose estimation (up to 50\% reduction in RMSE) and higher-quality photo-realistic reconstructions than state-of-the-art methods. Comprehensive ablation studies further validate the effectiveness of our key design choices. Source code will be publicly available upon paper acceptance.
関連論文
- エッジ上でのRGB-D SLAM:Raspberry Pi 5におけるRTAB-MapとORB-SLAM3のベンチマークとプロファイリングSLAM
- 拡散事前分布と来歴認識を用いた動的環境向け単眼ガウシアンスプラッティングSLAMSLAM
- V3DSAM: 意味・幾何学的ループ検証と幾何学固定の永続インスタンスマッピングによるフィードフォワード高密度SLAMSLAM
- DASH-SLAM: 深度スケール伝播によるキャリブレーション不要のメトリック単眼SLAMSLAM
- 暗黙的意味論と系列一貫性ループ閉じ込めによるVGGTベースSLAMのスケールアンカリングSLAM
- 磁気慣性を密結合したフィールドロボット向けSLAMシステムSLAM
