CFPNet: Improving Lightweight ToF Depth Completion via Cross-zone Feature Propagation
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Abstract (arXiv)
Depth completion using lightweight time-of-flight (ToF) depth sensors is attractive due to their low cost. However, lightweight ToF sensors usually have a limited field of view (FOV) compared with cameras. Thus, only pixels in the zone area of the image can be associated with depth signals. Previous methods fail to propagate depth features from the zone area to the outside-zone area effectively, thus suffering from degraded depth completion performance outside the zone. To this end, this paper proposes the CFPNet to achieve cross-zone feature propagation from the zone area to the outside-zone area with two novel modules. The first is a direct-attention-based propagation module (DAPM), which enforces direct cross-zone feature acquisition. The second is a large-kernel-based propagation module (LKPM), which realizes cross-zone feature propagation by utilizing convolution layers with kernel sizes up to 31. CFPNet achieves state-of-the-art (SOTA) depth completion performance by combining these two modules properly, as verified by extensive experimental results on the ZJU-L5 dataset. The code is available at https://github.com/denyingmxd/CFPNet.
Key facts. Cited by 4 papers in the map (data through 7 Oct 2026). Builds on 37 of its 46 references that are in the map. First posted on arXiv 7 Nov 2024.
Builds on
37 of 46 references.
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Built on by
Citing papers per year: 2025: 3; 2026: 1.
4 papers.
- 2025DEPTHOR: Depth Enhancement from a Practical Light-Weight dToF Sensor and RGB Imagecited by 3
- 2025ECMNet:Lightweight Semantic Segmentation with Efficient CNN-Mamba Networkcited by 1
- 2025DEPTHOR++: Robust Depth Enhancement from a Real-World Lightweight dToF and RGB Guidancecited by 1
- 2026On-Device Super Resolution Imaging Using Low-Cost SPAD Array and Embedded Lightweight Deep Learningcited by 0
- 2026On-Device Super Resolution Imaging Using Low-Cost SPAD Array and Embedded Lightweight Deep Learning27 Mar 2026
- 2025DEPTHOR++: Robust Depth Enhancement from a Real-World Lightweight dToF and RGB Guidance30 Sep 2025
- 2025ECMNet:Lightweight Semantic Segmentation with Efficient CNN-Mamba Network10 Jun 2025
- 2025DEPTHOR: Depth Enhancement from a Practical Light-Weight dToF Sensor and RGB Image2 Apr 2025