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For the task of metal artifact reduction (MAR), although deep learning (DL)-based methods have achieved promising performances, most of them suffer from two problems: 1) the CT imaging geometry constraint is not fully embedded into the…

图像与视频处理 · 电气工程与系统科学 2021-09-14 Hong Wang , Yuexiang Li , Haimiao Zhang , Jiawei Chen , Kai Ma , Deyu Meng , Yefeng Zheng

Metal artifacts caused by the presence of metallic implants tremendously degrade the reconstructed computed tomography (CT) image quality, affecting clinical diagnosis or reducing the accuracy of organ delineation and dose calculation in…

Generalization capabilities of learning-based medical image segmentation across domains are currently limited by the performance degradation caused by the domain shift, particularly for ultrasound (US) imaging. The quality of US images…

图像与视频处理 · 电气工程与系统科学 2024-02-07 Yuan Bi , Zhongliang Jiang , Ricarda Clarenbach , Reza Ghotbi , Angelos Karlas , Nassir Navab

Unlike ordinary computer vision tasks that focus more on the semantic content of images, the image manipulation detection task pays more attention to the subtle information of image manipulation. In this paper, the noise image extracted by…

计算机视觉与模式识别 · 计算机科学 2022-07-05 Zhongyuan Zhang , Yi Qian , Yanxiang Zhao , Lin Zhu , Jinjin Wang

Recently, both supervised and unsupervised deep learning methods have been widely applied on the CT metal artifact reduction (MAR) task. Supervised methods such as Dual Domain Network (Du-DoNet) work well on simulation data; however, their…

图像与视频处理 · 电气工程与系统科学 2021-03-10 Yuanyuan Lyu , Jiajun Fu , Cheng Peng , S. Kevin Zhou

In the current monocular depth research, the dominant approach is to employ unsupervised training on large datasets, driven by warped photometric consistency. Such approaches lack robustness and are unable to generalize to challenging…

计算机视觉与模式识别 · 计算机科学 2020-03-31 Jaime Spencer , Richard Bowden , Simon Hadfield

Balancing reconstruction quality versus model efficiency remains a critical challenge in lightweight single image super-resolution (SISR). Despite the prevalence of attention mechanisms in recent state-of-the-art SISR approaches that…

计算机视觉与模式识别 · 计算机科学 2025-05-28 M. Akin Yilmaz , Ahmet Bilican , A. Murat Tekalp

Previous deep image registration methods that employ single homography, multi-grid homography, or thin-plate spline often struggle with real scenes containing depth disparities due to their inherent limitations. To address this, we propose…

计算机视觉与模式识别 · 计算机科学 2025-09-10 Haokai Zhu , Bo Qu , Si-Yuan Cao , Runmin Zhang , Shujie Chen , Bailin Yang , Hui-Liang Shen

MRI with multiple protocols is commonly used for diagnosis, but it suffers from a long acquisition time, which yields the image quality vulnerable to say motion artifacts. To accelerate, various methods have been proposed to reconstruct…

图像与视频处理 · 电气工程与系统科学 2020-04-09 Bo Zhou , S. Kevin Zhou

Current self-supervised denoising methods for paired noisy images typically involve mapping one noisy image through the network to the other noisy image. However, after measuring the spectral bias of such methods using our proposed Image…

计算机视觉与模式识别 · 计算机科学 2025-10-02 Wang Zhang , Huaqiu Li , Xiaowan Hu , Tao Jiang , Zikang Chen , Haoqian Wang

Iterative neural networks (INN) are rapidly gaining attention for solving inverse problems in imaging, image processing, and computer vision. INNs combine regression NNs and an iterative model-based image reconstruction (MBIR) algorithm,…

图像与视频处理 · 电气工程与系统科学 2023-08-31 Il Yong Chun , Zhengyu Huang , Hongki Lim , Jeffrey A. Fessler

The aim of image restoration is to recover high-quality images from distorted ones. However, current methods usually focus on a single task (\emph{e.g.}, denoising, deblurring or super-resolution) which cannot address the needs of…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Cheng Zhang , Yu Zhu , Qingsen Yan , Jinqiu Sun , Yanning Zhang

Video object detection is a tough task due to the deteriorated quality of video sequences captured under complex environments. Currently, this area is dominated by a series of feature enhancement based methods, which distill beneficial…

计算机视觉与模式识别 · 计算机科学 2020-09-17 Lijian Lin , Haosheng Chen , Honglun Zhang , Jun Liang , Yu Li , Ying Shan , Hanzi Wang

Due to the problem of performance constraints of unsupervised video object detection, its large-scale application is limited. In response to this pain point, we propose another excellent method to solve this problematic point. By…

计算机视觉与模式识别 · 计算机科学 2022-11-22 Chao Hu , Liqiang Zhu

During the computed tomography (CT) imaging process, metallic implants within patients often cause harmful artifacts, which adversely degrade the visual quality of reconstructed CT images and negatively affect the subsequent clinical…

图像与视频处理 · 电气工程与系统科学 2022-12-27 Hong Wang , Yuexiang Li , Haimiao Zhang , Deyu Meng , Yefeng Zheng

Noisy images processing is a fundamental task of computer vision. The first example is the detection of faint edges in noisy images, a challenging problem studied in the last decades. A recent study introduced a fast method to detect faint…

计算机视觉与模式识别 · 计算机科学 2021-10-06 Nati Ofir , Yosi Keller

We present a novel direction-aware feature-level frequency decomposition network for single image deraining. Compared with existing solutions, the proposed network has three compelling characteristics. First, unlike previous algorithms, we…

计算机视觉与模式识别 · 计算机科学 2021-06-16 Sen Deng , Yidan Feng , Mingqiang Wei , Haoran Xie , Yiping Chen , Jonathan Li , Xiao-Ping Zhang , Jing Qin

Mesh denoising, aimed at removing noise from input meshes while preserving their feature structures, is a practical yet challenging task. Despite the remarkable progress in learning-based mesh denoising methodologies in recent years, their…

计算机视觉与模式识别 · 计算机科学 2024-05-13 Wenbo Zhao , Xianming Liu , Deming Zhai , Junjun Jiang , Xiangyang Ji

Traditional change detection methods based on convolutional neural networks (CNNs) face the challenges of speckle noise and deformation sensitivity for synthetic aperture radar images. To mitigate these issues, we proposed a Multiscale…

计算机视觉与模式识别 · 计算机科学 2021-09-28 Yunhao Gao , Feng Gao , Junyu Dong , Heng-Chao Li

Deep Learning (DL) based Compressed Sensing (CS) has been applied for better performance of image reconstruction than traditional CS methods. However, most existing DL methods utilize the block-by-block measurement and each measurement…

图像与视频处理 · 电气工程与系统科学 2022-09-29 Zhifeng Wang , Zhenghui Wang , Chunyan Zeng , Yan Yu , Xiangkui Wan