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- W4304588426 abstract "Estimation of spacecraft pose is essential for many space missions, such as formation flying, rendezvous, docking, repair, and space debris removal. We propose a learning-based method with uncertainty prediction to estimate the pose of a spacecraft from a monocular image. We first used a spacecraft detection network (SDN) to crop out the rectangular area in the original image where only spacecraft exist. A keypoint detection network (KDN) was then used to detect 11 pre-selected keypoints with obvious features from the cropped image and predict uncertainty. We propose a keypoints selection strategy to automatically select keypoints with higher detection accuracy from all detected keypoints. These selective keypoints were used to estimate the 6D pose of the spacecraft with the EPnP algorithm. We evaluated our method on the SPEED dataset. The experiments showed that our method outperforms heatmap-based and regression-based methods, and our effective uncertainty prediction can increase the final precision of the pose estimation." @default.
- W4304588426 created "2022-10-12" @default.
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- W4304588426 date "2022-10-11" @default.
- W4304588426 modified "2023-10-01" @default.
- W4304588426 title "Learning-Based Pose Estimation of Non-Cooperative Spacecrafts with Uncertainty Prediction" @default.
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- W4304588426 doi "https://doi.org/10.3390/aerospace9100592" @default.
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