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Conference Papers Year : 2023

Cross-task Attention Mechanism for Dense Multi-task Learning


Multi-task learning has recently become a promising solution for a comprehensive understanding of complex scenes. Not only being memory-efficient, multi-task models with an appropriate design can favor exchange of complementary signals across tasks. In this work, we jointly address 2D semantic segmentation, and two geometry-related tasks, namely dense depth, surface normal estimation as well as edge estimation showing their benefit on indoor and outdoor datasets. We propose a novel multi-task learning architecture that exploits pair-wise cross-task exchange through correlation-guided attention and self-attention to enhance the average representation learning for all tasks. We conduct extensive experiments considering three multi-task setups, showing the benefit of our proposal in comparison to competitive baselines in both synthetic and real benchmarks. We also extend our method to the novel multi-task unsupervised domain adaptation setting. Our code is available at

Dates and versions

hal-03805874 , version 1 (07-10-2022)



Ivan Lopes, Tuan-Hung Vu, Raoul de Charette. Cross-task Attention Mechanism for Dense Multi-task Learning. WACV 2023 - Winter Conference on Applications of Computer Vision, IEEE/CVF, Jan 2023, Waikoloa, Hawaii, United States. ⟨hal-03805874⟩


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