The 3D semantic instance prediction task involves detecting and segmenting the object in an 3D scan mesh.

Evaluation and metrics

Our evaluation ranks all methods according to the average precision for each class. We report the mean average precision AP at overlap 0.25 (AP 25%), overlap 0.5 (AP 50%), and over overlaps in the range [0.5:0.95:0.05] (AP). Note that multiple predictions of the same ground truth instance are penalized as false positives.



This table lists the benchmark results for the 3D semantic instance with limited reconstructions scenario.




Method Infoavg ap 25%bathtubbedbookshelfcabinetchaircountercurtaindeskdoorotherfurniturepicturerefrigeratorshower curtainsinksofatabletoiletwindow
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WS3D_LR_Ins0.773 11.000 10.885 30.783 30.738 10.840 40.402 40.793 10.804 10.605 20.676 10.636 20.593 21.000 10.805 30.894 20.761 11.000 10.696 1
Kangcheng Liu: WS3D: Weakly Supervised 3D Scene Segmentation with Region-Level Boundary Awareness and Instance Discrimination. European Conference on Computer Vision (ECCV), 2022
TWIST+CSC0.669 31.000 10.885 20.784 20.541 40.862 30.541 20.574 30.502 40.589 30.517 30.462 30.500 50.714 30.749 40.822 50.708 20.944 40.352 4
Ruihang Chu: TWIST: Two-Way Inter-label Self-Training for Semi-supervised 3D Instance Segmentation. CVPR 2022
InstTeacher3D0.738 21.000 10.770 60.714 40.583 20.885 10.608 10.636 20.649 20.654 10.612 20.637 10.541 31.000 10.824 10.896 10.639 31.000 10.634 2
Yizheng Wu, Zhiyu Pan, Kewei Wang, Xingyi Li, Jiahao Cui, Liwen Xiao, Guosheng Lin, Zhiguo Cao: Instance Consistency Regularization for Semi-Supervised 3D Instance Segmentation. IEEE Transactions on Pattern Analysis and Machine Intelligence
CSC_LR_INS0.615 41.000 10.933 10.604 50.436 60.865 20.469 30.438 60.296 60.425 60.478 40.333 40.612 10.688 50.824 10.774 60.590 41.000 10.309 6
Scratch_LR_INS0.584 50.667 50.798 50.604 60.512 50.814 60.292 50.507 50.511 30.506 50.423 50.306 50.485 60.714 30.639 50.866 40.565 50.944 40.352 3
PointContrast_LR_INS0.573 60.667 50.818 40.831 10.558 30.815 50.273 60.550 40.464 50.583 40.414 60.152 60.527 40.429 60.543 60.873 30.552 60.944 40.320 5