Papers › SeedFormer: Patch Seeds based Point Cloud Completion with Upsample Transformer

SeedFormer: Patch Seeds based Point Cloud Completion with Upsample Transformer

21 Jul 2022arXiv:2207.10315archive 2025-07-28

Haoran Zhou, Yun Cao, Wenqing Chu, Junwei Zhu, Tong Lu, Ying Tai, Chengjie Wang

Point cloud completion has become increasingly popular among generation tasks of 3D point clouds, as it is a challenging yet indispensable problem to recover the complete shape of a 3D object from its partial observation. In this paper, we propose a novel SeedFormer to improve the ability of detail preservation and recovery in point cloud completion. Unlike previous methods based on a global feature vector, we introduce a new shape representation, namely Patch Seeds, which not only captures general structures from partial inputs but also preserves regional information of local patterns. Then, by integrating seed features into the generation process, we can recover faithful details for complete point clouds in a coarse-to-fine manner. Moreover, we devise an Upsample Transformer by extending the transformer structure into basic operations of point generators, which effectively incorporates spatial and semantic relationships between neighboring points. Qualitative and quantitative evaluations demonstrate that our method outperforms state-of-the-art completion networks on several benchmark datasets. Our code is available at https://github.com/hrzhou2/seedformer.

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UpTransformer hrzhou2/seedformer/codes/model.py official repository ran licence not identified · pointer only · ec4088b87af505af · report
get_nearest_index hrzhou2/seedformer/codes/model.py official repository ran · fixture could not drive it licence not identified · pointer only · a23f1a3cb9d41554 · report
indexing_neighbor hrzhou2/seedformer/codes/model.py official repository ran · our draft was wrong licence not identified · pointer only · 43701432db53999c · report
FeatureExtractor hrzhou2/seedformer/codes/model.py official repository unverified licence not identified · pointer only · 968d848adc67b0ec · report
SeedFormer hrzhou2/seedformer/codes/model.py official repository unverified licence not identified · pointer only · 6dd89d4726459a92 · report
SeedGenerator hrzhou2/seedformer/codes/model.py official repository unverified licence not identified · pointer only · b689b842a871ad39 · report
UpLayer hrzhou2/seedformer/codes/model.py official repository unverified licence not identified · pointer only · f6dd48e49b93b561 · report
vTransformer hrzhou2/seedformer/codes/model.py official repository unverified licence not identified · pointer only · 17594c69e496b065 · report

Tasks

Point Cloud Completion

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Point Cloud Completion Completion3D SeedFormer Chamfer Distance 6.74(PCN dataset) #7 of 7 Archive leaderboard report

Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.

Methods

Absolute Position EncodingsAdamAttentionBPEDense ConnectionsDropoutLabel SmoothingLayer NormalizationLinear LayerMulti-Head AttentionPosition-Wise Feed-Forward LayerResidual ConnectionSoftmaxTransformer

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