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Deep models often suffer from severe performance drop due to the appearance shift in the real clinical setting. Most of the existing learning-based methods rely on images from multiple sites/vendors or even corresponding labels. However,…

Image and Video Processing · Electrical Eng. & Systems 2020-09-28 Xiaoqiong Huang , Zejian Chen , Xin Yang , Zhendong Liu , Yuxin Zou , Mingyuan Luo , Wufeng Xue , Dong Ni

Echocardiography is widely used to clinical practice for diagnosis and treatment, e.g., on the common congenital heart defects. The traditional manual manipulation is error-prone due to the staff shortage, excess workload, and less…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Fuhai Chen , Rongrong Ji , Chengpeng Dai , Xuri Ge , Shengchuang Zhang , Xiaojing Ma , Yue Gao

In this paper, we propose a novel text promptable surgical instrument segmentation approach to overcome challenges associated with diversity and differentiation of surgical instruments in minimally invasive surgeries. We redefine the task…

Computer Vision and Pattern Recognition · Computer Science 2024-06-05 Zijian Zhou , Oluwatosin Alabi , Meng Wei , Tom Vercauteren , Miaojing Shi

Generalized zero-shot learning aims to recognize both seen and unseen classes with the help of semantic information that is shared among different classes. It inevitably requires consistent visual-semantic alignment. Existing approaches…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Huajie Jiang , Zhengxian Li , Xiaohan Yu , Yongli Hu , Baocai Yin , Jian Yang , Yuankai Qi

Pre-trained vision-language models (VLMs) have shown impressive performance on various downstream tasks by utilizing knowledge learned from large data. In general, the performance of VLMs on target tasks can be further improved by prompt…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Eulrang Cho , Jooyeon Kim , Hyunwoo J. Kim

Deep learning methods have reached state-of-the-art performance in cardiac image segmentation. Currently, the main bottleneck towards their effective translation into clinics requires assuring continuous high model performance and…

Image and Video Processing · Electrical Eng. & Systems 2021-06-15 Francesco Galati , Maria A. Zuluaga

Convolutional neural networks (CNN) have demonstrated their ability to segment 2D cardiac ultrasound images. However, despite recent successes according to which the intra-observer variability on end-diastole and end-systole images has been…

Image and Video Processing · Electrical Eng. & Systems 2022-05-09 Nathan Painchaud , Nicolas Duchateau , Olivier Bernard , Pierre-Marc Jodoin

Universal visual anomaly detection (AD) aims to identify anomaly images and segment anomaly regions towards open and dynamic scenarios, following zero- and few-shot paradigms without any dataset-specific fine-tuning. We have witnessed…

Computer Vision and Pattern Recognition · Computer Science 2026-01-12 Bin-Bin Gao , Chengjie Wang

Prompt learning has emerged as an efficient and effective approach for transferring foundational Vision-Language Models (e.g., CLIP) to downstream tasks. However, current methods tend to overfit to seen categories, thereby limiting their…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Chen Xu , Yuhan Zhu , Guozhen Zhang , Haocheng Shen , Yixuan Liao , Xiaoxin Chen , Gangshan Wu , Limin Wang

Textual-based prompt learning methods primarily employ multiple learnable soft prompts and hard class tokens in a cascading manner as text inputs, aiming to align image and text (category) spaces for downstream tasks. However, current…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Zheng Li , Yibing Song , Ming-Ming Cheng , Xiang Li , Jian Yang

Segmenting specific targets or biomarkers is necessary to analyze optical coherence tomography angiography (OCTA) images. Previous methods typically segment all the targets in an OCTA sample, such as retinal vessels (RVs). Although these…

Machine Learning · Computer Science 2024-03-21 Xinrun Chen , Chengliang Wang , Haojian Ning , Shiying Li , Mei Shen

Accurate identification of End-Diastolic (ED) and End-Systolic (ES) frames is key for cardiac function assessment through echocardiography. However, traditional methods face several limitations: they require extensive amounts of data,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Zhenyu Bu , Yang Liu , Jiayu Huo , Jingjing Peng , Kaini Wang , Guangquan Zhou , Rachel Sparks , Prokar Dasgupta , Alejandro Granados , Sebastien Ourselin

Cardiac segmentation of atriums, ventricles, and myocardium in computed tomography (CT) images is an important first-line task for presymptomatic cardiovascular disease diagnosis. In several recent studies, deep learning models have shown…

Image and Video Processing · Electrical Eng. & Systems 2024-10-01 Sanguk Park , Minyoung Chung

Automatic myocardial segmentation of contrast echocardiography has shown great potential in the quantification of myocardial perfusion parameters. Segmentation quality control is an important step to ensure the accuracy of segmentation…

Image and Video Processing · Electrical Eng. & Systems 2021-09-16 Dewen Zeng , Yukun Ding , Haiyun Yuan , Meiping Huang , Xiaowei Xu , Jian Zhuang , Jingtong Hu , Yiyu Shi

Promptable foundation models, particularly Segment Anything Model (SAM), have emerged as a promising alternative to the traditional task-specific supervised learning for image segmentation. However, many evaluation studies have found that…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Rachana Sathish , Rahul Venkataramani , K S Shriram , Prasad Sudhakar

Cardiac magnetic resonance imaging (MRI) is a pivotal tool for assessing cardiac function. Precise segmentation of cardiac structures is imperative for accurate cardiac functional evaluation. This paper introduces a semi-supervised model…

Image and Video Processing · Electrical Eng. & Systems 2024-05-24 Hejun Huang , Zuguo Chen , Yi Huang , Guangqiang Luo , Chaoyang Chen , Youzhi Song

Pre-trained vision-language models (VLMs) are highly adaptable to various downstream tasks through few-shot learning, making prompt-based anomaly detection a promising approach. Traditional methods depend on human-crafted prompts that…

Computer Vision and Pattern Recognition · Computer Science 2024-09-12 Pi-Wei Chen , Jerry Chun-Wei Lin , Jia Ji , Feng-Hao Yeh , Zih-Ching Chen , Chao-Chun Chen

In recent years, self-supervised learning methods have shown significant improvement for pre-training with unlabeled data and have proven helpful for electrocardiogram signals. However, most previous pre-training methods for…

Machine Learning · Computer Science 2022-03-21 Jungwoo Oh , Hyunseung Chung , Joon-myoung Kwon , Dong-gyun Hong , Edward Choi

Positron Emission Tomography (PET) is a powerful molecular imaging tool that plays a crucial role in modern medical diagnostics by visualizing radio-tracer distribution to reveal physiological processes. Accurate organ segmentation from PET…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Yichi Zhang , Le Xue , Wenbo Zhang , Lanlan Li , Yuchen Liu , Chen Jiang , Yuan Cheng , Yuan Qi

While mainstream vision-language models (VLMs) have advanced rapidly in understanding image level information, they still lack the ability to focus on specific areas designated by humans. Rather, they typically rely on large volumes of…

Computer Vision and Pattern Recognition · Computer Science 2025-02-13 Kangyu Zhu , Ziyuan Qin , Huahui Yi , Zekun Jiang , Qicheng Lao , Shaoting Zhang , Kang Li