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Jiliu Zhou

5 accepted papers

2024

DCL-Net: Dual Contrastive Learning Network for Semi-Supervised Multi-Organ Segmentation

ICASSP 2024accepted

Semi-supervised learning (SSL) is a sound measure to relieve the strict demand of abundant annotated datasets, especially for challenging multi-organ segmentation (MoS). However, most existing SSL methods predict pixels in a single image independently, ignoring the relations among images and categor…

Cited by 0SourceScholar
2024

Image2Points: A 3D Point-Based Context Clusters GAN for High-Quality Pet Image Reconstruction

ICASSP 2024accepted

To obtain high-quality Positron emission tomography (PET) images while minimizing radiation exposure, numerous methods have been proposed to reconstruct standard-dose PET (SPET) images from the corresponding low-dose PET (LPET) images. However, these methods heavily rely on voxel-based representatio…

Cited by 0SourceScholar
2023

LION: Label Disambiguation for Semi-supervised Facial Expression Recognition with Progressive Negative Learning

IJCAI 2023poster

Semi-supervised deep facial expression recognition (SS-DFER) has recently attracted rising research interest due to its more practical setting of abundant unlabeled data. However, there are two main problems unconsidered in current SS-DFER methods: 1) label ambiguity, i.e., given labels mismatch wit…

2023

Rethinking Safe Semi-supervised Learning: Transferring the Open-set Problem to A Close-set One

ICCV 2023poster

Conventional semi-supervised learning (SSL) lies in the close-set assumption that the labeled and unlabeled sets contain data with the same seen classes, called in-distribution (ID) data. In contrast, safe SSL investigates a more challenging open-set problem where unlabeled set may involve some out-…

Cited by 12PDFScholar
2023

Stay In The Middle: A Semi-Supervised Model for CT Metal Artifact Reduction

ICASSP 2023accepted

Metal artifacts degrade CT image’s quality. Recently, some deep learning-based metal artifact reduction (MAR) methods have been developed. Supervised MAR methods don’t perform well in clinical due to the domain gap between simulated and clinical data. Although this problem can be avoided in an unsup…

Cited by 0SourceScholar