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. 2023 Dec 9;19(3):481–492. doi: 10.1007/s11548-023-03025-7

Fig. 2.

Fig. 2

Overview of the semantic keypoint proposal network. KH and DH are the keypoint and keypoint descriptor head, respectively. Irrelevant keypoint rejection relies on semantic segmentation performed by the U-Net with ResNet50 backbone from [8]. The overall output is a set of keypoints, their descriptors and class