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Zhen Qian

4 accepted papers

2025

HYDEN: Hyperbolic Density Representations for Medical Images and Reports

COLING 2025main

In light of the inherent entailment relations between images and text, embedding point vectors in hyperbolic space has been employed to leverage its hierarchical modeling advantages for visual semantic representation learning. However, point vector embeddings struggle to address semantic uncertainty…

2025

Teaching Large Language Models Number-Focused Headline Generation With Key Element Rationales

NAACL 2025findings

Number-focused headline generation is a summarization task requiring both high textual quality and precise numerical accuracy, which poses a unique challenge for Large Language Models (LLMs). Existing studies in the literature focus only on either textual quality or numerical reasoning and thus are…

2024

DiffuX2CT: Diffusion Learning to Reconstruct CT Images from Biplanar X-Rays

ECCV 2024poster

"Computed tomography (CT) is widely utilized in clinical settings because it delivers detailed 3D images of the human body. However, performing CT scans is not always feasible due to radiation exposure and limitations in certain surgical environments. As an alternative, reconstructing CT images from…

Cited by 3SourcePDFScholar
2021

Test-Time Training for Deformable Multi-Scale Image Registration

ICRA 2021poster

Registration is a fundamental task in medical robotics and is often a crucial step for many downstream tasks such as motion analysis, intra-operative tracking and image segmentation. Popular registration methods such as ANTs and NiftyReg optimize objective functions for each pair of images from scra…

Cited by 32SourceScholar