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Research map / Point clouds / Shape and surface completion

Patch-Based Progressive 3D Point Set Upsampling

CVPR 2019 · Point clouds › Shape and surface completion · approach: Point cloud upsampling and normals · 317 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use the multi-stage architecture rather than iterating one 2× model (ablation)Patch-based progressive upsampling network · Sketchfab, 625-point input, 16× upsamplingCD: 0.69 -> 0.54Helped
Train the units end-to-end rather than separately (ablation)Patch-based progressive upsampling network · Sketchfab, 625-point input, 16× upsamplingCD: 0.73 -> 0.54Helped
Train units progressively rather than simultaneously (ablation)Patch-based progressive upsampling network · Sketchfab, 625-point input, 16× upsamplingCD: 0.55 -> 0.54Helped
Add dense feature extraction (ablation)Patch-based progressive upsampling network · Sketchfab, 625-point input, 16× upsamplingCD: 0.61 -> 0.54Helped
Use code-assignment feature expansion instead of the PU-Net counterpart (ablation)Patch-based progressive upsampling network · Sketchfab, 625-point input, 16× upsamplingCD: 0.73 -> 0.54Helped
Add inter-level skip connections (ablation)Patch-based progressive upsampling network · Sketchfab, 625-point input, 16× upsamplingCD: 0.61 -> 0.54Helped
Use patch-based progressive upsampling instead of the strongest baseline16× point set upsampling · Sketchfab, 625-point inputCD: 0.67 -> 0.54Helped
Use patch-based progressive upsampling instead of the strongest baseline16× point set upsampling · Sketchfab, 5000-point inputCD: 0.09 -> 0.06Helped
Use adaptive patch extraction across progressive stages (ablation)Multi-stage PU-Net on MNIST-CP · MNIST-CPGeometric reconstruction qualityHelped
Train multi-stage units end-to-end rather than separately (ablation)Multi-stage PU-Net on MNIST-CP · MNIST-CPGeometric reconstruction qualityHelped

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