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Chuandong Liu

4 accepted papers

2025

Exploring Scene Affinity for Semi-Supervised LiDAR Semantic Segmentation

CVPR 2025poster

This paper explores scene affinity (AIScene), namely intra-scene consistency and inter-scene correlation, for semi-supervised LiDAR semantic segmentation in driving scenes. Adopting teacher-student training, AIScene employs a teacher network to generate pseudo-labeled scenes from unlabeled data, whi…

2025

Holistic Large-Scale Scene Reconstruction via Mixed Gaussian Splatting

NeurIPS 2025poster

Recent advances in 3D Gaussian Splatting have shown remarkable potential for novel view synthesis. However, most existing large-scale scene reconstruction methods rely on the divide-and-conquer paradigm, which often leads to the loss of global scene information and requires complex parameter tuning…

Cited by 0SourcecodeScholar
2023

Hierarchical Supervision and Shuffle Data Augmentation for 3D Semi-Supervised Object Detection

CVPR 2023poster

State-of-the-art 3D object detectors are usually trained on large-scale datasets with high-quality 3D annotations. However, such 3D annotations are often expensive and time-consuming, which may not be practical for real applications. A natural remedy is to adopt semi-supervised learning (SSL) by lev…

2022

SS3D: Sparsely-Supervised 3D Object Detection From Point Cloud

CVPR 2022poster

Conventional deep learning based methods for 3D object detection require a large amount of 3D bounding box annotations for training, which is expensive to obtain in practice. Sparsely annotated object detection, which can largely reduce the annotations, is very challenging since the missingannotated…

Cited by 28PDFcodeScholar