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Ziwei Zhao

7 accepted papers

2025

DeformCL: Learning Deformable Centerline Representation for Vessel Extraction in 3D Medical Image

CVPR 2025poster

In the field of 3D medical imaging, accurately extracting and representing the blood vessels with curvilinear structures holds paramount importance for clinical diagnosis. Previous methods have commonly relied on discrete representation like mask, often resulting in local fractures or scattered frag…

2024

Ego-Exo4D: Understanding Skilled Human Activity from First- and Third-Person Perspectives

CVPR 2024poster

We present Ego-Exo4D a diverse large-scale multimodal multiview video dataset and benchmark challenge. Ego-Exo4D centers around simultaneously-captured egocentric and exocentric video of skilled human activities (e.g. sports music dance bike repair). 740 participants from 13 cities worldwide perform…

2024

Fusing Personal and Environmental Cues for Identification and Segmentation of First-Person Camera Wearers in Third-Person Views

CVPR 2024poster

As wearable cameras become more popular an important question emerges: how to identify camera wearers within the perspective of conventional static cameras. The drastic difference between first-person (egocentric) and third-person (exocentric) camera views makes this a challenging task. We present P…

2024

GraphMorph: Tubular Structure Extraction by Morphing Predicted Graphs

NeurIPS 2024poster

Accurately restoring topology is both challenging and crucial in tubular structure extraction tasks, such as blood vessel segmentation and road network extraction. Diverging from traditional approaches based on pixel-level classification, our proposed method, named GraphMorph, focuses on branch-leve…

Cited by 0SourcePDFScholar
2022

Check and Link: Pairwise Lesion Correspondence Guides Mammogram Mass Detection

ECCV 2022poster

"Detecting mass in mammogram is significant due to the high occurrence and mortality of breast cancer. In mammogram mass detection, modeling pairwise lesion correspondence explicitly is particularly important. However, most of the existing methods build relatively coarse correspondence and have not…

Cited by 6SourcePDFScholar
2022

Ego4D: Around the World in 3,000 Hours of Egocentric Video

CVPR 2022oral

We introduce Ego4D, a massive-scale egocentric video dataset and benchmark suite. It offers 3,670 hours of daily-life activity video spanning hundreds of scenarios (household, outdoor, workplace, leisure, etc.) captured by 931 unique camera wearers from 74 worldwide locations and 9 different countri…

Cited by 1162PDFcodeScholar
2022

PointScatter: Point Set Representation for Tubular Structure Extraction

ECCV 2022poster

"This paper explores the point set representation for tubular structure extraction tasks. Compared with the traditional mask representation, the point set representation enjoys its flexibility and representation ability, which would not be restricted by the fixed grid as the mask. Inspired by this,…