Papers › RTFormer: Efficient Design for Real-Time Semantic Segmentation with Transformer

RTFormer: Efficient Design for Real-Time Semantic Segmentation with Transformer

13 Oct 2022arXiv:2210.07124archive 2025-07-28

Jian Wang, Chenhui Gou, Qiman Wu, Haocheng Feng, Junyu Han, Errui Ding, Jingdong Wang

Recently, transformer-based networks have shown impressive results in semantic segmentation. Yet for real-time semantic segmentation, pure CNN-based approaches still dominate in this field, due to the time-consuming computation mechanism of transformer. We propose RTFormer, an efficient dual-resolution transformer for real-time semantic segmenation, which achieves better trade-off between performance and efficiency than CNN-based models. To achieve high inference efficiency on GPU-like devices, our RTFormer leverages GPU-Friendly Attention with linear complexity and discards the multi-head mechanism. Besides, we find that cross-resolution attention is more efficient to gather global context information for high-resolution branch by spreading the high level knowledge learned from low-resolution branch. Extensive experiments on mainstream benchmarks demonstrate the effectiveness of our proposed RTFormer, it achieves state-of-the-art on Cityscapes, CamVid and COCOStuff, and shows promising results on ADE20K. Code is available at PaddleSeg: https://github.com/PaddlePaddle/PaddleSeg.

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Real-Time Semantic SegmentationSegmentationSemantic Segmentation

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Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Real-Time Semantic Segmentation CamVid RTFormer-Slim Frame (fps) 190.7(2080Ti) #2 of 29 Archive leaderboard report
Real-Time Semantic Segmentation CamVid RTFormer-Slim mIoU 81.4 #2 of 29 Archive leaderboard report
Real-Time Semantic Segmentation Cityscapes val RTFormer-B Frame (fps) 50.2 #6 of 24 Archive leaderboard report
Real-Time Semantic Segmentation Cityscapes val RTFormer-B mIoU 79.3% #6 of 24 Archive leaderboard report
Real-Time Semantic Segmentation Cityscapes val RTFormer-S Frame (fps) 89.6 #13 of 24 Archive leaderboard report
Real-Time Semantic Segmentation Cityscapes val RTFormer-S mIoU 76.3% #13 of 24 Archive leaderboard report
Semantic Segmentation CamVid RTFormer-Base Mean IoU 82.5 #4 of 21 Archive leaderboard report

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