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Current generative models struggle to synthesize dynamic 4D driving scenes that simultaneously support temporal extrapolation and spatial novel view synthesis (NVS) without per-scene optimization. A key challenge lies in finding an…

计算机视觉与模式识别 · 计算机科学 2025-03-20 Jiazhe Guo , Yikang Ding , Xiwu Chen , Shuo Chen , Bohan Li , Yingshuang Zou , Xiaoyang Lyu , Feiyang Tan , Xiaojuan Qi , Zhiheng Li , Hao Zhao

We present LT3SD, a novel latent diffusion model for large-scale 3D scene generation. Recent advances in diffusion models have shown impressive results in 3D object generation, but are limited in spatial extent and quality when extended to…

计算机视觉与模式识别 · 计算机科学 2025-05-02 Quan Meng , Lei Li , Matthias Nießner , Angela Dai

Contrast-enhanced computed tomography (CT) imaging is essential for diagnosing and monitoring thoracic diseases, including aortic pathologies. However, contrast agents pose risks such as nephrotoxicity and allergic-like reactions. The…

图像与视频处理 · 电气工程与系统科学 2025-09-08 Pouya Shiri , Xin Yi , Neel P. Mistry , Samaneh Javadinia , Mohammad Chegini , Seok-Bum Ko , Amirali Baniasadi , Scott J. Adams

Advancements in 3D vision have increased the impact of blood vessel modeling on medical applications. However, accurately representing the complex geometry and topology of blood vessels remains a challenge due to their intricate branching…

计算机视觉与模式识别 · 计算机科学 2025-07-22 Siqi Chen , Guoqing Zhang , Jiahao Lai , Bingzhi Shen , Sihong Zhang , Caixia Dong , Xuejin Chen , Yang Li

Digital Subtraction Angiography (DSA) is a clinically significant imaging technique for diagnosing cerebrovascular disease, as gold-standard. However, the artifacts caused by motion of high-attenuation tissues such as bones, teeth, and…

图像与视频处理 · 电气工程与系统科学 2026-04-14 Rongjun Ge , Weilong Mao , Jian Lu , Rong Yan , Yikun Zhang , Peng Yuan , Jun Xiang , Hui Tang , Guanyu Yang , Yudong Zhang , Yang Chen , Shuo Li

We hereby present a full synthetic model, able to mimic the various constituents of the cerebral vascular tree: the cerebral arteries, the bifurcations and the intracranial aneurysms. By building this model, our goal was to provide a…

图像与视频处理 · 电气工程与系统科学 2024-03-28 Rafic Nader , Florent Autrusseau , Vincent L'Allinec , Romain Bourcier

Cardiovascular diseases (CVDs) are the most common cause of death worldwide. Invasive x-ray coronary angiography (ICA) is one of the most important imaging modalities for the diagnosis of CVDs. ICA typically acquires only two 2D…

图像与视频处理 · 电气工程与系统科学 2024-12-17 Yiying Wang , Abhirup Banerjee , Robin P. Choudhury , Vicente Grau

Contrast-enhanced computed tomography (CECT) is pivotal for highlighting tissue perfusion and vascularity, yet its clinical ubiquity is impeded by the invasive nature of contrast agents and radiation risks. While virtual contrast…

计算机视觉与模式识别 · 计算机科学 2026-04-02 Zilong Li , Dongyang Li , Chenglong Ma , Zhan Feng , Dakai Jin , Junping Zhang , Hao Luo , Fan Wang , Hongming Shan

Coronary angiography is the "gold standard" for diagnosing coronary artery disease (CAD). At present, the methods for detecting and evaluating coronary artery stenosis cannot satisfy the clinical needs, e.g., there is no prior study of…

图像与视频处理 · 电气工程与系统科学 2021-12-15 Yaofang Liu , Xinyue Zhang , Wenlong Wan , Shaoyu Liu , Yingdi Liu , Hu Liu , Xueying Zeng , Qing Zhang

Coronary angiography is the "gold standard" for diagnosing coronary artery disease (CAD). At present, the methods for detecting and evaluating coronary artery stenosis cannot satisfy the clinical needs, e.g., there is no prior study of…

图像与视频处理 · 电气工程与系统科学 2021-12-16 Yaofang Liu , Xinyue Zhang , Wenlong Wan , Shaoyu Liu , Yingdi Liu , Hu Liu , Xueying Zeng , Qing Zhang

Score Distillation Sampling (SDS) has emerged as a prevalent technique for text-to-3D generation, enabling 3D content creation by distilling view-dependent information from text-to-2D guidance. However, they frequently exhibit shortcomings…

计算机视觉与模式识别 · 计算机科学 2024-09-20 Zeyu Cai , Duotun Wang , Yixun Liang , Zhijing Shao , Ying-Cong Chen , Xiaohang Zhan , Zeyu Wang

As experts continue to debate the optimal surgery practice for coronary disease - percutaneous coronary intervention (PCI) or coronary aortic bypass graft (CABG) - computational tools may provide a quantitative assessment of each option.…

计算机视觉与模式识别 · 计算机科学 2018-10-09 Boyi Yang , Marina Piccinelli , Gaetano Esposito , Tianli Han , Yasir Bouchi , Bill Gogas , Don Giddens , Habib Samady , Alessandro Veneziani

Optimization-based text-to-3D methods distill guidance from 2D generative models via Score Distillation Sampling (SDS), but implicitly treat this guidance as static. This work shows that ignoring source dynamics yields inconsistent…

机器学习 · 计算机科学 2025-11-18 Jiayin Zhu , Linlin Yang , Yicong Li , Angela Yao

The objective of this study is to develop a deep-learning based detection and diagnosis technique for carotid atherosclerosis using a portable freehand 3D ultrasound (US) imaging system. A total of 127 3D carotid artery scans were acquired…

图像与视频处理 · 电气工程与系统科学 2023-11-10 Jiawen Li , Yunqian Huang , Sheng Song , Hongbo Chen , Junni Shi , Duo Xu , Haibin Zhang , Man Chen , Rui Zheng

Non-invasive imaging of deep blood vessels for mapping hemodynamics remains an open quest in biomedical optical imaging. Although pure optical imaging techniques offer rich optical contrast of blood and have been reported to measure blood…

医学物理 · 物理学 2022-09-20 Yang Zhang , Joshua Olick-Gibson , Anjul Khadria , Lihong V. Wang

Understanding of vascular organization is a long-standing problem in quantitative biology and biophysics and is essential for the growth of large cultured tissues. Approaches are needed that (1) make predictions of optimal arteriovenous…

组织与器官 · 定量生物学 2023-08-25 James P. Hague

Anatomical structures such as blood vessels in contrast-enhanced CT (ceCT) images can be challenging to segment due to the variability in contrast medium diffusion. The combined use of ceCT and contrast-free (CT) CT images can improve the…

图像与视频处理 · 电气工程与系统科学 2022-10-05 Giammarco La Barbera , Haithem Boussaid , Francesco Maso , Sabine Sarnacki , Laurence Rouet , Pietro Gori , Isabelle Bloch

Three-dimensional digital subtraction angiography (3D-DSA) is a widely adopted technique for clinical evaluation of contrast-enhanced vasculatures. The distribution of a contrast agent such as iodine is often estimated via temporal…

医学物理 · 物理学 2023-10-18 Xiaoxuan Zhang , Xiao Jiang , Matthew Tivnan , J. Webster Stayman , Grace Gang

The precise delineation of blood vessels in medical images is critical for many clinical applications, including pathology detection and surgical planning. However, fully-automated vascular segmentation is challenging because of the…

图像与视频处理 · 电气工程与系统科学 2024-09-20 Amine Sadikine , Bogdan Badic , Enzo Ferrante , Vincent Noblet , Pascal Ballet , Dimitris Visvikis , Pierre-Henri Conze

Vascular tracking of angiographic image sequences is one of the most clinically important tasks in the diagnostic assessment and interventional guidance of cardiac disease. However, this task can be challenging to accomplish because of…

计算机视觉与模式识别 · 计算机科学 2018-05-28 Huihui Fang , Jian Yang , Jianjun Zhu , Danni Ai , Yong Huang , Yurong Jiang , Hong Song , Yongtian Wang