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R-LKDepth: Recurrent Depth Learning With Larger Kernel
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AI
DOI：10.1109/LSP.2024.3358100.png)
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摘要
En 中文
Monocular depth estimation is a critical task with significant potential for real-time applications. However, current networks for monocular depth estimation exhibit a trade-off between computational overhead and accuracy. Current top-performing coarse-to-fine networks excel in building multi-scale features and thus get a satisfactory result, but suffer from an excessive count of model parameters of its deeper backbone. In contrast, recurrent networks significantly save the use of model parameters, but their performance is often restricted by the smaller receptive field, leading to insufficient local evidence to handle complex objects and homogeneous regions. In this letter, we aim to alleviate the limitation and thus propose an efficient recurrent network R-LKDepth. Specifically, we first introduce the larger kernel scheme with a careful design to effectively extract the image features with larger receptive fields. Furthermore, we propose a group-wise multi-scale self-attention based refine-feed (GMSA-RF) module, which efficiently aggregates multi-scale information for recurrent refinement procedure. The resulting network, R-LKDepth, significantly improves the depth estimation performance over complex objects and homogeneous regions and achieves state-of-the-art performance on standard benchmarks with superior cross-dataset generalization capability.
Keyword:
Estimation
Kernel
Feature extraction
Standards
Decoding
Training
Image resolution
Monocular depth estimation
recurrent refinement
self-supervised learning
larger receptive fields
期刊
IF:
9.6
论文数:
1.1W
被引数:
1.7W
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