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- W3090912915 abstract "Obstacle detection by semantic segmentation shows a great promise for autonomous navigation in unmanned surface vehicles (USV). However, existing methods suffer from poor estimation of the water edge in presence of visual ambiguities, poor detection of small obstacles and high false-positive rate on water reflections and wakes. We propose a new deep encoder-decoder architecture, a water-obstacle separation and refinement network (WaSR), to address these issues. Detection and water edge accuracy are improved by a novel decoder that gradually fuses inertial information from inertial measurement unit (IMU) with the visual features from the encoder. In addition, a novel loss function is designed to increase the separation between water and obstacle features early on in the network. Subsequently, the capacity of the remaining layers in the decoder is better utilised, leading to a significant reduction in false positives and increased true positives. Experimental results show that WaSR outperforms the current state-of-the-art by a large margin, yielding a 14% increase in F-measure over the second-best method." @default.
- W3090912915 created "2020-10-08" @default.
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- W3090912915 date "2020-05-01" @default.
- W3090912915 modified "2023-09-30" @default.
- W3090912915 title "A water-obstacle separation and refinement network for unmanned surface vehicles" @default.
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- W3090912915 doi "https://doi.org/10.1109/icra40945.2020.9197194" @default.
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