Papers › Scaling Wide Residual Networks for Panoptic Segmentation

Scaling Wide Residual Networks for Panoptic Segmentation

23 Nov 2020arXiv:2011.11675archive 2025-07-28

Liang-Chieh Chen, Huiyu Wang, Siyuan Qiao

The Wide Residual Networks (Wide-ResNets), a shallow but wide model variant of the Residual Networks (ResNets) by stacking a small number of residual blocks with large channel sizes, have demonstrated outstanding performance on multiple dense prediction tasks. However, since proposed, the Wide-ResNet architecture has barely evolved over the years. In this work, we revisit its architecture design for the recent challenging panoptic segmentation task, which aims to unify semantic segmentation and instance segmentation. A baseline model is obtained by incorporating the simple and effective Squeeze-and-Excitation and Switchable Atrous Convolution to the Wide-ResNets. Its network capacity is further scaled up or down by adjusting the width (i.e., channel size) and depth (i.e., number of layers), resulting in a family of SWideRNets (short for Scaling Wide Residual Networks). We demonstrate that such a simple scaling scheme, coupled with grid search, identifies several SWideRNets that significantly advance state-of-the-art performance on panoptic segmentation datasets in both the fast model regime and strong model regime.

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Tasks

Instance SegmentationPanoptic SegmentationSegmentationSemantic Segmentation

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Panoptic Segmentation COCO test-dev Panoptic-DeepLab (SWideRNet-[1, 1, 4], multi-scale) PQ 46.5 #24 of 38 Archive leaderboard report
Panoptic Segmentation COCO test-dev Panoptic-DeepLab (SWideRNet-[1, 1, 4], multi-scale) PQst 38.2 #24 of 38 Archive leaderboard report
Panoptic Segmentation COCO test-dev Panoptic-DeepLab (SWideRNet-[1, 1, 4], multi-scale) PQth 52.0 #24 of 38 Archive leaderboard report
Panoptic Segmentation Cityscapes test Panoptic-DeepLab (SWideRNet [1, 1, 4.5], Mapillary, multi-scale) PQ 67.8 #2 of 10 Archive leaderboard report
Panoptic Segmentation Cityscapes val Panoptic-DeepLab (SWideRNet [1, 1, 4.5], Mapillary Vistas, multi-scale) AP 46.8 #3 of 37 Archive leaderboard report
Panoptic Segmentation Cityscapes val Panoptic-DeepLab (SWideRNet [1, 1, 4.5], Mapillary Vistas, multi-scale) PQ 69.6 #3 of 37 Archive leaderboard report
Panoptic Segmentation Cityscapes val Panoptic-DeepLab (SWideRNet [1, 1, 4.5], Mapillary Vistas, multi-scale) mIoU 85.3 #3 of 37 Archive leaderboard report
Panoptic Segmentation Cityscapes val Panoptic-DeepLab (SWideRNet [1, 1, 4.5], Mapillary Vistas, single-scale) AP 42.8 #6 of 37 Archive leaderboard report
Panoptic Segmentation Cityscapes val Panoptic-DeepLab (SWideRNet [1, 1, 4.5], Mapillary Vistas, single-scale) PQ 68.5 #6 of 37 Archive leaderboard report
Panoptic Segmentation Cityscapes val Panoptic-DeepLab (SWideRNet [1, 1, 4.5], Mapillary Vistas, single-scale) mIoU 84.6 #6 of 37 Archive leaderboard report
Panoptic Segmentation Mapillary val Panoptic-DeepLab (SWideRNet-(1, 1, 4.5), multi-scale) PQ 44.8 #4 of 13 Archive leaderboard report
Panoptic Segmentation Mapillary val Panoptic-DeepLab (SWideRNet-(1, 1, 4.5), multi-scale) PQst 51.9 #4 of 13 Archive leaderboard report
Panoptic Segmentation Mapillary val Panoptic-DeepLab (SWideRNet-(1, 1, 4.5), multi-scale) PQth 39.3 #4 of 13 Archive leaderboard report
Panoptic Segmentation Mapillary val Panoptic-DeepLab (SWideRNet-(1, 1, 4.5), multi-scale) mIoU 60.0 #4 of 13 Archive leaderboard report

Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.

Methods

Convolution

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