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Convolutional Neural Networks (CNNs) have achieved state-of-the-art performance in many different 2D medical image analysis tasks. In clinical practice, however, a large part of the medical imaging data available is in 3D. This has…

Computer Vision and Pattern Recognition · Computer Science 2018-12-27 Guodong Zeng , Guoyan Zheng

Convolutional Neural Network (CNN)-based filters have achieved significant performance in video artifacts reduction. However, the high complexity of existing methods makes it difficult to be applied in real usage. In this paper, a CNN-based…

Image and Video Processing · Electrical Eng. & Systems 2020-09-08 Chao Liu , Heming Sun , Jiro Katto , Xiaoyang Zeng , Yibo Fan

In recent years, 3D convolutional neural networks have become the dominant approach for volumetric medical image segmentation. However, compared to their 2D counterparts, 3D networks introduce substantially more training parameters and…

Image and Video Processing · Electrical Eng. & Systems 2022-06-01 Yuan Wang , Laura Blackie , Irene Miguel-Aliaga , Wenjia Bai

We present an efficient deep learning approach for the challenging task of tumor segmentation in multisequence MR images. In recent years, Convolutional Neural Networks (CNN) have achieved state-of-the-art performances in a large variety of…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Pawel Mlynarski , Hervé Delingette , Antonio Criminisi , Nicholas Ayache

The segmentation of organs in volumetric medical images plays an important role in computer-aided diagnosis and treatment/surgery planning. Conventional 2D convolutional neural networks (CNNs) can hardly exploit the spatial correlation of…

Image and Video Processing · Electrical Eng. & Systems 2024-05-21 Zhuoyuan Wang , Dong Sun , Xiangyun Zeng , Ruodai Wu , Yi Wang

Objective: There exist several X-ray computed tomography (CT) scanning strategies to reduce a radiation dose, such as (1) sparse-view CT, (2) low-dose CT, and (3) region-of-interest (ROI) CT (called interior tomography). To further reduce…

Image and Video Processing · Electrical Eng. & Systems 2025-01-10 Yoseob Han , Dufan Wu , Kyungsang Kim , Quanzheng Li

Deep learning architecture with convolutional neural network (CNN) achieves outstanding success in the field of computer vision. Where U-Net, an encoder-decoder architecture structured by CNN, makes a great breakthrough in biomedical image…

Image and Video Processing · Electrical Eng. & Systems 2023-02-13 Qing Xu , Zhicheng Ma , Na HE , Wenting Duan

Machine Learning has considerably improved medical image analysis in the past years. Although data-driven approaches are intrinsically adaptive and thus, generic, they often do not perform the same way on data from different imaging…

Image and Video Processing · Electrical Eng. & Systems 2020-07-02 Marie Kloenne , Sebastian Niehaus , Leonie Lampe , Alberto Merola , Janis Reinelt , Ingo Roeder , Nico Scherf

Brain tumor segmentation plays a pivotal role in medical image processing. In this work, we aim to segment brain MRI volumes. 3D convolution neural networks (CNN) such as 3D U-Net and V-Net employing 3D convolutions to capture the…

Computer Vision and Pattern Recognition · Computer Science 2019-09-24 Chen Chen , Xiaopeng Liu , Meng Ding , Junfeng Zheng , Jiangyun Li

Direct automatic segmentation of objects from 3D medical imaging, such as magnetic resonance (MR) imaging, is challenging as it often involves accurately identifying a number of individual objects with complex geometries within a large…

Image and Video Processing · Electrical Eng. & Systems 2021-09-23 Wei Dai , Boyeong Woo , Siyu Liu , Matthew Marques , Craig B. Engstrom , Peter B. Greer , Stuart Crozier , Jason A. Dowling , Shekhar S. Chandra

Limited-angle computed tomography (CT) is often used in clinical applications such as C-arm CT for interventional imaging. However, CT images from limited angles suffers from heavy artifacts due to incomplete projection data. Existing…

Computer Vision and Pattern Recognition · Computer Science 2017-08-01 Jawook Gu , Jong Chul Ye

Computed tomography (CT) is indispensable for clinical diagnosis and image-guided interventions but exposes patients to ionizing radiation, motivating the development of safer imaging alternatives. Ultrasound (US) is non-ionizing and widely…

Computer Vision and Pattern Recognition · Computer Science 2026-05-07 Sapna Sachan , Amulya Kumar Mahto

Lossy compression introduces complex compression artifacts, particularly blocking artifacts, ringing effects and blurring. Existing algorithms either focus on removing blocking artifacts and produce blurred output, or restore sharpened…

Computer Vision and Pattern Recognition · Computer Science 2016-08-10 Ke Yu , Chao Dong , Chen Change Loy , Xiaoou Tang

This research embarked on a comparative exploration of the holistic segmentation capabilities of Convolutional Neural Networks (CNNs) in both 2D and 3D formats, focusing on cystic fibrosis (CF) lesions. The study utilized data from two CF…

Image and Video Processing · Electrical Eng. & Systems 2024-08-13 Amel Imene Hadj Bouzid , Baudouin Denis de Senneville , Fabien Baldacci , Pascal Desbarats , Patrick Berger , Ilyes Benlala , Gaël Dournes

There has been a debate in 3D medical image segmentation on whether to use 2D or 3D networks, where both pipelines have advantages and disadvantages. 2D methods enjoy a low inference time and greater transfer-ability while 3D methods are…

Computer Vision and Pattern Recognition · Computer Science 2019-11-26 Qihang Yu , Yingda Xia , Lingxi Xie , Elliot K. Fishman , Alan L. Yuille

Metal artifacts, caused by high-density metallic implants in computed tomography (CT) imaging, severely degrade image quality, complicating diagnosis and treatment planning. While existing deep learning algorithms have achieved notable…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 Farid Tasharofi , Fuxin Fan , Melika Qahqaie , Mareike Thies , Andreas Maier

Due to the potential risk of inducing cancers, radiation dose of X-ray CT should be reduced for routine patient scanning. However, in low-dose X-ray CT, severe artifacts usually occur due to photon starvation, beamhardening, etc, which…

Computer Vision and Pattern Recognition · Computer Science 2018-02-07 Eunhee Kang , Junhong Min , Jong Chul Ye

Automatic prohibited object detection within 2D/3D X-ray Computed Tomography (CT) has been studied in literature to enhance the aviation security screening at checkpoints. Deep Convolutional Neural Networks (CNN) have demonstrated superior…

Computer Vision and Pattern Recognition · Computer Science 2020-12-23 Qian Wang , Toby P. Breckon

Cone-beam X-ray Computed Tomography (XCT) with large detectors and corresponding large-scale 3D reconstruction plays a pivotal role in micron-scale characterization of materials and parts across various industries. In this work, we present…

Computer Vision and Pattern Recognition · Computer Science 2025-01-27 Aniket Pramanik , Obaidullah Rahman , Singanallur V. Venkatakrishnan , Amirkoushyar Ziabari

Recent advances in 3D fully convolutional networks (FCN) have made it feasible to produce dense voxel-wise predictions of volumetric images. In this work, we show that a multi-class 3D FCN trained on manually labeled CT scans of several…

Computer Vision and Pattern Recognition · Computer Science 2018-04-13 Holger R. Roth , Hirohisa Oda , Xiangrong Zhou , Natsuki Shimizu , Ying Yang , Yuichiro Hayashi , Masahiro Oda , Michitaka Fujiwara , Kazunari Misawa , Kensaku Mori