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_Ins0.581 11.000 10.667 40.730 10.492 10.782 20.029 10.765 10.287 10.398 20.414 20.183 30.456 11.000 10.514 10.736 10.577 10.975 10.448 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+CSC0.421 30.667 30.757 10.333 30.358 30.770 30.008 30.436 20.254 20.361 30.372 30.224 20.378 20.143 20.303 40.643 20.446 30.889 20.242 3
Ruihang Chu: TWIST: Two-Way Inter-label Self-Training for Semi-supervised 3D Instance Segmentation. CVPR 2022
PointContrast_LR_INS0.298 50.667 30.752 20.005 60.186 60.644 60.000 40.359 30.118 60.223 60.266 50.131 50.012 60.000 30.256 50.550 60.333 50.791 40.073 5
InstTeacher3D0.443 21.000 10.617 50.341 20.382 20.785 10.000 40.333 40.158 40.485 10.458 10.420 10.250 30.000 30.384 30.630 30.467 20.875 30.394 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_INS0.325 40.667 30.698 30.106 40.198 50.708 40.000 40.244 50.194 30.279 40.292 40.179 40.107 40.000 30.446 20.600 40.328 60.693 60.108 4
Scratch_LR_INS0.273 60.667 30.567 60.106 50.203 40.685 50.013 20.002 60.130 50.269 50.234 60.129 60.103 50.000 30.063 60.557 50.385 40.753 50.057 6