WAPR: 未知物体の姿勢推定における広角リファインメント基盤モデル
WAPR: A Foundation Model for Wide-Angle Refinement in Unseen Object Pose Estimation
最大90度の回転ずれを持つ候補姿勢を修正するゼロショット姿勢リファインメントモデルを提案し、大規模データセットSA6Dと角度バランス損失で学習を安定化、未知物体の6D姿勢推定で最高性能を達成した。
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著者: Yulin Wang, Mengting Hu, Hongli Li, Jianghao Zhou, Chen Luo
分類: cs.CV, cs.AI, cs.RO
原文アブストラクト
Real-world applications require 6D pose estimation to be accurate, fast, and scalable to unseen objects. This paper introduces WAPR, a zero-shot wide-angle pose refinement model that refines candidate poses with rotational deviations up to 90 degrees. With as few as 12 candidate poses per detected object instance, WAPR supports fast inference within 1 s per frame and reaches a pose-estimation throughput of up to 25 detected object instances per second. To support wide-angle training for rotationally symmetric objects, WAPR uses rotational symmetry priors to canonicalize symmetry-equivalent pose targets before loss computation. We further construct SA6D, a large-scale 6D training dataset with such priors. SA6D obtains KASAL-assisted rotational symmetry priors for 944 GSO scans and expands them through geometry and texture augmentation into about 50K augmented object instances and about 2M rendered RGB-D images. In addition, an angle-balanced loss stabilizes learning across different angular ranges by reducing the influence of uninformative large-error cases. Experiments on seven BOP core datasets show that WAPR achieves state-of-the-art performance in unseen-object 6D pose localization and detection under both fast and unconstrained inference settings. Project page: https://github.com/WangYuLin-SEU/WAPR.