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Deep segmentation networks achieve high performance when trained on specific datasets. However, in clinical practice, it is often desirable that pretrained segmentation models can be dynamically extended to enable segmenting new organs…

计算机视觉与模式识别 · 计算机科学 2024-10-08 Vince Zhu , Zhanghexuan Ji , Dazhou Guo , Puyang Wang , Yingda Xia , Le Lu , Xianghua Ye , Wei Zhu , Dakai Jin

Metal artifacts in computed tomography (CT) arise from a mismatch between physics of image formation and idealized assumptions during tomographic reconstruction. These artifacts are particularly strong around metal implants, inhibiting…

图像与视频处理 · 电气工程与系统科学 2019-09-20 Jan-Nico Zaech , Cong Gao , Bastian Bier , Russell Taylor , Andreas Maier , Nassir Navab , Mathias Unberath

Limited angle problem is a challenging issue in x-ray computed tomography (CT) field. Iterative reconstruction methods that utilize the additional prior can suppress artifacts and improve image quality, but unfortunately require increased…

医学物理 · 物理学 2016-10-04 Hanming Zhang , Liang Li , Kai Qiao , Linyuan Wang , Bin Yan , Lei Li , Guoen Hu

Modeling and manufacturing of personalized cranial implants are important research areas that may decrease the waiting time for patients suffering from cranial damage. The modeling of personalized implants may be partially automated by the…

计算机视觉与模式识别 · 计算机科学 2024-06-11 Marek Wodzinski , Kamil Kwarciak , Mateusz Daniol , Daria Hemmerling

Metal artifacts in Dental CBCT severely obscure anatomical structures, hindering diagnosis. Current deep learning for Metal Artifact Reduction (MAR) faces limitations: supervised methods suffer from spectral blurring due to…

计算机视觉与模式识别 · 计算机科学 2026-01-05 Zhi Li , Yaqi Wang , Bingtao Ma , Yifan Zhang , Huiyu Zhou , Shuai Wang

Early diagnosis of attention-deficit/hyperactivity disorder (ADHD) in children plays a crucial role in improving outcomes in education and mental health. Diagnosing ADHD using neuroimaging data, however, remains challenging due to…

图像与视频处理 · 电气工程与系统科学 2026-01-16 Jyun-Ping Kao , Shinyeong Rho , Shahar Lazarev , Hyun-Hae Cho , Fangxu Xing , Taehoon Shin , C. -C. Jay Kuo , Jonghye Woo

Foundation models have revolutionized computational pathology by achieving remarkable success in high-level diagnostic tasks, yet the critical challenge of low-level image enhancement remains largely unaddressed. Real-world pathology images…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Ziyi Liu , Zhe Xu , Jiabo Ma , Wenqaing Li , Junlin Hou , Fuxiang Huang , Xi Wang , Ronald Cheong Kin Chan , Terence Tsz Wai Wong , Hao Chen

The deployment of artificial intelligence in medical imaging is hindered by high computational complexity and resource-intensive processing of volumetric data. Although chest computed tomography (CT) volumes offer richer diagnostic…

计算机视觉与模式识别 · 计算机科学 2026-05-04 Shadid Yousuf , S. M. Mahbubur Rahman , Mohammed Imamul Hassan Bhuiyan

By the ALARA (As Low As Reasonably Achievable) principle, ultra-low-dose CT reconstruction is a holy grail to minimize cancer risks and genetic damages, especially for children. With the development of medical CT technologies, the iterative…

图像与视频处理 · 电气工程与系统科学 2021-06-21 Weiwen Wu , Chuang Niu , Shadi Ebrahimian , Hengyong Yu , Mannu Kalra , Ge Wang

Parameter-Efficient Fine-Tuning (PEFT) of text-to-image models has become an increasingly popular technique with many applications. Among the various PEFT methods, Low-Rank Adaptation (LoRA) and its variants have gained significant…

机器学习 · 计算机科学 2025-08-01 Zerui Tao , Yuhta Takida , Naoki Murata , Qibin Zhao , Yuki Mitsufuji

Limited-view computed tomography (CT) presents significant potential for reducing radiation exposure and expediting the scanning process. While deep learning (DL) methods have exhibited promising results in mitigating streaking artifacts…

医学物理 · 物理学 2025-02-18 Changyu Chen , Li Zhang , Yuxiang Xing , Zhiqiang Chen

Magnetic Resonance Imaging generally requires long exposure times, while being sensitive to patient motion, resulting in artifacts in the acquired images, which may hinder their diagnostic relevance. Despite research efforts to decrease the…

图像与视频处理 · 电气工程与系统科学 2025-02-04 Paolo Angella , Vito Paolo Pastore , Matteo Santacesaria

X-ray computed tomography (CT) reconstructs the internal morphology of a three dimensional object from a collection of projection images, most commonly using a single rotation axis. However, for objects containing dense materials like…

图像与视频处理 · 电气工程与系统科学 2024-06-27 Diyu Yang , Craig A. J. Kemp , Soumendu Majee , Gregery T. Buzzard , Charles A. Bouman

Low-dose CT (LDCT) is capable of reducing X-ray radiation exposure, but it will potentially degrade image quality, even yields metal artifacts at the case of metallic implants. For simultaneous LDCT reconstruction and metal artifact…

计算机视觉与模式识别 · 计算机科学 2025-11-26 Baoshun Shi , Bing Chen , Shaolei Zhang , Huazhu Fu , Zhanli Hu

Limited-angle computerized tomography stands for one of the most difficult challenges in imaging. Although it opens the way to faster data acquisition in industry and less dangerous scans in medicine, standard approaches, such as the…

图像与视频处理 · 电气工程与系统科学 2025-10-07 Bernadette Hahn , Gael Rigaud , Richard Schmähl

Sparse-view computed tomography (CT) has been adopted as an important technique for speeding up data acquisition and decreasing radiation dose. However, due to the lack of sufficient projection data, the reconstructed CT images often…

图像与视频处理 · 电气工程与系统科学 2023-06-27 Hong Wang , Minghao Zhou , Dong Wei , Yuexiang Li , Yefeng Zheng

Since the invention of modern CT systems, metal artifacts have been a persistent problem. Due to increased scattering, amplified noise, and insufficient data collection, it is more difficult to suppress metal artifacts in cone-beam CT,…

医学物理 · 物理学 2023-10-27 Tianling Lyu , Zhan Wu , Gege Ma , Chen Jiang , Xinyun Zhong , Yan Xi , Yang Chen , Wentao Zhu

In spectral CT reconstruction, the basis materials decomposition involves solving a large-scale nonlinear system of integral equations, which is highly ill-posed mathematically. This paper proposes a model that parameterizes the attenuation…

图像与视频处理 · 电气工程与系统科学 2026-04-07 Ligen Shi , Ping Yang , Chang Liu , Wei Zhang , Xing Zhao , Jun Qiu

Parameter-efficient transfer learning (PETL) has become a promising paradigm for adapting large-scale vision foundation models to downstream tasks. Typical methods primarily leverage the intrinsic low rank property to make decomposition,…

计算机视觉与模式识别 · 计算机科学 2024-12-12 Sinan Du , Guosheng Zhang , Keyao Wang , Yuanrui Wang , Haixiao Yue , Gang Zhang , Errui Ding , Jingdong Wang , Zhengzhuo Xu , Chun Yuan

Pretrained vision foundation models deliver strong performance across tasks with limited fine-tuning. However, their Vision Transformer (ViT) backbones impose high inference costs, limiting deployment on resource-constrained devices. In…

计算机视觉与模式识别 · 计算机科学 2026-05-22 Carmelo Scribano , Mohammad Mahdi , Nedyalko Prisadnikov , Yuqian Fu , Giorgia Franchini , Danda Pani Paudel , Marko Bertogna , Luc Van Gool