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Intraoperative bleeding in laparoscopic surgery causes rapid obscuration of the operative field to hinder the surgical process and increases the risk of postoperative complications. Intelligent detection of bleeding areas can quantify the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Jialun Pei , Zhangjun Zhou , Diandian Guo , Zhixi Li , Jing Qin , Bo Du , Pheng-Ann Heng

While laparoscopic liver resection is less prone to complications and maintains patient outcomes compared to traditional open surgery, its complexity hinders widespread adoption due to challenges in representing the liver's internal…

Image and Video Processing · Electrical Eng. & Systems 2024-10-11 Karl-Philippe Beaudet , Alexandros Karargyris , Sidaty El Hadramy , Stéphane Cotin , Jean-Paul Mazellier , Nicolas Padoy , Juan Verde

Liver registration by overlaying preoperative 3D models onto intraoperative 2D frames can assist surgeons in perceiving the spatial anatomy of the liver clearly for a higher surgical success rate. Existing registration methods rely heavily…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Jun Zhou , Bingchen Gao , Kai Wang , Jialun Pei , Pheng-Ann Heng , Jing Qin

Analyzing surgical workflow is crucial for surgical assistance robots to understand surgeries. With the understanding of the complete surgical workflow, the robots are able to assist the surgeons in intra-operative events, such as by giving…

Computer Vision and Pattern Recognition · Computer Science 2021-05-12 Yutong Ban , Guy Rosman , Thomas Ward , Daniel Hashimoto , Taisei Kondo , Hidekazu Iwaki , Ozanan Meireles , Daniela Rus

Large Language Models have revolutionized natural language processing, yet serving them efficiently in data centers remains challenging due to mixed workloads comprising latency-sensitive (LS) and best-effort (BE) jobs. Existing inference…

Machine Learning · Computer Science 2025-03-13 Mohammad Siavashi , Faezeh Keshmiri Dindarloo , Dejan Kostic , Marco Chiesa

Model-based reconstruction employing the time separation technique (TST) was found to improve dynamic perfusion imaging of the liver using C-arm cone-beam computed tomography (CBCT). To apply TST using prior knowledge extracted from CT…

In this paper, we propose a phase attention residual network (PA-ResSeg) to model multi-phase features for accurate liver tumor segmentation, in which a phase attention (PA) is newly proposed to additionally exploit the images of arterial…

Image and Video Processing · Electrical Eng. & Systems 2021-09-15 Yingying Xu , Ming Cai , Lanfen Lin , Yue Zhang , Hongjie Hu , Zhiyi Peng , Qiaowei Zhang , Qingqing Chen , Xiongwei Mao , Yutaro Iwamoto , Xian-Hua Han , Yen-Wei Chen , Ruofeng Tong

In recent years, deep convolutional neural network-based segmentation methods have achieved state-of-the-art performance for many medical analysis tasks. However, most of these approaches rely on optimizing the U-Net structure or adding new…

Image and Video Processing · Electrical Eng. & Systems 2025-09-15 Kunpeng Mao , Ruoyu Li , Junlong Cheng , Danmei Huang , Zhiping Song , ZeKui Liu

This work presents a novel approach for the early recognition of the type of a laparoscopic surgery from its video. Early recognition algorithms can be beneficial to the development of 'smart' OR systems that can provide automatic…

Computer Vision and Pattern Recognition · Computer Science 2019-09-06 Siddharth Kannan , Gaurav Yengera , Didier Mutter , Jacques Marescaux , Nicolas Padoy

Liver landmarks provide crucial anatomical guidance to the surgeon during laparoscopic liver surgery to minimize surgical risk. However, the tubular structural properties of landmarks and dynamic intraoperative deformations pose significant…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Ruize Cui , Jiaan Zhang , Jialun Pei , Kai Wang , Pheng-Ann Heng , Jing Qin

A modern operating room (OR) provides a plethora of advanced medical devices. In order to better facilitate the information offered by them, they need to automatically react to the intra-operative context. To this end, the progress of the…

Machine Learning · Computer Science 2017-06-05 Ralf Stauder , Ergün Kayis , Nassir Navab

As we push the boundaries of performance in various vision tasks, the models grow in size correspondingly. To keep up with this growth, we need very aggressive pruning techniques for efficient inference and deployment on edge devices.…

Computer Vision and Pattern Recognition · Computer Science 2024-06-19 Xinglong Sun , Barath Lakshmanan , Maying Shen , Shiyi Lan , Jingde Chen , Jose Alvarez

Laparoscopic liver surgery poses a complex intraoperative dynamic environment for surgeons, where remains a significant challenge to distinguish critical or even hidden structures inside the liver. Liver anatomical landmarks, e.g., ridge…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Jialun Pei , Ruize Cui , Yaoqian Li , Weixin Si , Jing Qin , Pheng-Ann Heng

Performing a real-time and accurate instrument segmentation from videos is of great significance for improving the performance of robotic-assisted surgery. We identify two important clues for surgical instrument perception, including local…

Computer Vision and Pattern Recognition · Computer Science 2021-09-29 Jiacheng Wang , Yueming Jin , Liansheng Wang , Shuntian Cai , Pheng-Ann Heng , Jing Qin

Laparoscopic liver surgery, while minimally invasive, poses significant challenges in accurately identifying critical anatomical structures. Augmented reality (AR) systems, integrating MRI/CT with laparoscopic images based on 2D-3D…

Computer Vision and Pattern Recognition · Computer Science 2025-06-19 Qian Li , Feng Liu , Shuojue Yang , Daiyun Shen , Yueming Jin

With the wide adoption of language models for IR -- and specifically RAG systems -- the latency of the underlying LLM becomes a crucial bottleneck, since the long contexts of retrieved passages lead large prompts and therefore, compute…

Information Retrieval · Computer Science 2026-04-06 Cornelius Kummer , Lena Jurkschat , Michael Färber , Sahar Vahdati

The field of computer vision applied to videos of minimally invasive surgery is ever-growing. Workflow recognition pertains to the automated recognition of various aspects of a surgery: including which surgical steps are performed; and…

Recognizing the phases of a laparoscopic surgery (LS) operation form its video constitutes a fundamental step for efficient content representation, indexing and retrieval in surgical video databases. In the literature, most techniques focus…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 Constantinos Loukas
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