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 50%bathtubbedbookshelfcabinetchaircountercurtaindeskdoorotherfurniturepicturerefrigeratorshower curtainsinksofatabletoiletwindow
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WS3D_LR_Ins0.656 11.000 10.766 40.736 10.656 10.793 30.091 20.561 20.389 40.533 10.582 10.531 20.592 10.981 10.622 10.782 20.638 20.997 40.558 1
Kangcheng Liu: WS3D: Weakly Supervised 3D Scene Segmentation with Region-Level Boundary Awareness and Instance Discrimination. European Conference on Computer Vision (ECCV), 2022
InstTeacher3D0.646 21.000 10.764 50.699 30.563 20.849 10.177 10.694 10.449 10.509 20.561 20.575 10.550 20.714 30.595 20.777 40.650 10.997 40.513 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_INS0.529 41.000 10.773 10.704 20.414 40.786 40.050 30.412 40.394 30.376 50.442 40.179 40.542 30.539 50.394 50.793 10.564 40.944 60.217 6
TWIST+CSC0.550 31.000 10.758 60.570 60.462 30.797 20.050 30.389 50.436 20.433 30.484 30.253 30.491 40.571 40.538 30.760 50.561 51.000 10.354 3
Ruihang Chu: TWIST: Two-Way Inter-label Self-Training for Semi-supervised 3D Instance Segmentation. CVPR 2022
Scratch_LR_INS0.473 60.528 50.773 10.632 40.391 50.784 50.050 30.515 30.271 50.392 40.400 60.123 50.486 50.387 60.322 60.627 60.573 31.000 10.268 5
PointContrast_LR_INS0.488 50.472 60.773 10.594 50.374 60.774 60.013 60.353 60.252 60.327 60.416 50.087 60.435 60.857 20.444 40.779 30.560 61.000 10.282 4