Papers › Full-Resolution Residual Networks for Semantic Segmentation in Street Scenes

Full-Resolution Residual Networks for Semantic Segmentation in Street Scenes

24 Nov 2016CVPR 2017 7arXiv:1611.08323archive 2025-07-28

Tobias Pohlen, Alexander Hermans, Markus Mathias, Bastian Leibe

Semantic image segmentation is an essential component of modern autonomous driving systems, as an accurate understanding of the surrounding scene is crucial to navigation and action planning. Current state-of-the-art approaches in semantic image segmentation rely on pre-trained networks that were initially developed for classifying images as a whole. While these networks exhibit outstanding recognition performance (i.e., what is visible?), they lack localization accuracy (i.e., where precisely is something located?). Therefore, additional processing steps have to be performed in order to obtain pixel-accurate segmentation masks at the full image resolution. To alleviate this problem we propose a novel ResNet-like architecture that exhibits strong localization and recognition performance. We combine multi-scale context with pixel-level accuracy by using two processing streams within our network: One stream carries information at the full image resolution, enabling precise adherence to segment boundaries. The other stream undergoes a sequence of pooling operations to obtain robust features for recognition. The two streams are coupled at the full image resolution using residuals. Without additional processing steps and without pre-training, our approach achieves an intersection-over-union score of 71.8% on the Cityscapes dataset.

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TobyPDE/FRRN officialmentioned in papermentioned on GitHubMIT report
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Tasks

Autonomous DrivingImage SegmentationReal-Time Semantic SegmentationSegmentationSemantic SegmentationThermal Image Segmentation

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Real-Time Semantic Segmentation Cityscapes test FRRN Frame (fps) 2.1 #26 of 39 Archive leaderboard report
Real-Time Semantic Segmentation Cityscapes test FRRN Time (ms) 469 #26 of 39 Archive leaderboard report
Real-Time Semantic Segmentation Cityscapes test FRRN mIoU 71.8% #26 of 39 Archive leaderboard report
Semantic Segmentation Cityscapes test FRRN Mean IoU (class) 71.8% #71 of 105 Archive leaderboard report
Thermal Image Segmentation MFN Dataset FRRN mIOU 44.2 #50 of 55 Archive leaderboard report

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