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Recent deep learning-based methods have achieved promising performance for computed tomography metal artifact reduction (CTMAR). However, most of them suffer from two limitations: (i) the domain knowledge is not fully embedded into the…

网络与互联网体系结构 · 计算机科学 2022-11-15 Baoshun Shi , Ke Jiang , Shaolei Zhang , Qiusheng Lian , Yanwei Qin

Image representations, from SIFT and bag of visual words to Convolutional Neural Networks (CNNs) are a crucial component of almost all computer vision systems. However, our understanding of them remains limited. In this paper we study…

计算机视觉与模式识别 · 计算机科学 2016-05-24 Aravindh Mahendran , Andrea Vedaldi

Convolutional neural networks (CNNs) have achieved state-of-the-art results on many visual recognition tasks. However, current CNN models still exhibit a poor ability to be invariant to spatial transformations of images. Intuitively, with…

计算机视觉与模式识别 · 计算机科学 2019-12-04 Xu Shen , Xinmei Tian , Anfeng He , Shaoyan Sun , Dacheng Tao

In this work, we present a learning based method focusing on the convolutional neural network (CNN) architecture to detect these forgeries. We consider the detection of both copy-move forgeries and inpainting based forgeries. For these, we…

计算机视觉与模式识别 · 计算机科学 2022-02-03 Ankit Katiyar , Arnav Bhavsar

Image inpainting is an underdetermined inverse problem, which naturally allows diverse contents to fill up the missing or corrupted regions realistically. Prevalent approaches using convolutional neural networks (CNNs) can synthesize…

计算机视觉与模式识别 · 计算机科学 2021-06-02 Yingchen Yu , Fangneng Zhan , Rongliang Wu , Jianxiong Pan , Kaiwen Cui , Shijian Lu , Feiying Ma , Xuansong Xie , Chunyan Miao

Color image inpainting is a challenging task in imaging science. The existing method is based on real operation, and the red, green and blue channels of the color image are processed separately, ignoring the correlation between each…

计算机视觉与模式识别 · 计算机科学 2024-06-18 Duan Wang , Dandan Zhu , Meixiang Zhao , Zhigang Jia

Recent advances in machine learning have greatly benefited object detection and 6D pose estimation. However, textureless and metallic objects still pose a significant challenge due to few visual cues and the texture bias of CNNs. To address…

计算机视觉与模式识别 · 计算机科学 2024-07-24 Peter Hönig , Stefan Thalhammer , Jean-Baptiste Weibel , Matthias Hirschmanner , Markus Vincze

Current research in Computer Vision has shown that Convolutional Neural Networks (CNN) give state-of-the-art performance in many classification tasks and Computer Vision problems. The embedding of CNN, which is the internal representation…

计算机视觉与模式识别 · 计算机科学 2015-08-04 Axel Angel

Delimiting salt inclusions from migrated images is a time-consuming activity that relies on highly human-curated analysis and is subject to interpretation errors or limitations of the methods available. We propose to use migrated images…

Spectral computed tomography (CT) is an emerging technology capable of providing high chemical specificity, which is crucial for many applications such as detecting threats in luggage. This type of application requires both fast and…

图像与视频处理 · 电气工程与系统科学 2021-03-30 Wail Mustafa , Christian Kehl , Ulrik Lund Olsen , Søren Kimmer Schou Gregersen , David Malmgren-Hansen , Jan Kehres , Anders Bjorholm Dahl

Feature extraction with convolutional neural networks (CNNs) is a popular method to represent images for machine learning tasks. These representations seek to capture global image content, and ideally should be independent of geometric…

机器学习 · 计算机科学 2022-03-03 Jake Lee , Junfeng Yang , Zhangyang Wang

In total hip arthroplasty, analysis of postoperative medical images is important to evaluate surgical outcome. Since Computed Tomography (CT) is most prevalent modality in orthopedic surgery, we aimed at the analysis of CT image. In this…

图像与视频处理 · 电气工程与系统科学 2019-06-28 Mitsuki Sakamoto , Yuta Hiasa , Yoshito Otake , Masaki Takao , Yuki Suzuki , Nobuhiko Sugano , Yoshinobu Sato

X-ray Computed Tomography (CT) imaging has been widely used in clinical diagnosis, non-destructive examination, and public safety inspection. Sparse-view (sparse view) CT has great potential in radiation dose reduction and scan…

医学物理 · 物理学 2019-05-29 Kaichao Liang , Hongkai Yang , Yuxiang Xing

The aim of this study is to demonstrate the feasibility of removing the image Moire artifacts caused by system inaccuracies in grating-based x-ray interferometry imaging system via convolutional neural network (CNN) technique. Instead of…

医学物理 · 物理学 2020-01-08 Jianwei Chen , Jiongtao Zhu , Wei Shi , Hairong Zheng , Dong Liang , Yongshuai Ge

The fast growing deep learning technologies have become the main solution of many machine learning problems for medical image analysis. Deep convolution neural networks (CNNs), as one of the most important branch of the deep learning…

计算机视觉与模式识别 · 计算机科学 2017-08-25 Zizhao Zhang , Fuyong Xing , Hai Su , Xiaoshuang Shi , Lin Yang

An important goal in visual recognition is to devise image representations that are invariant to particular transformations. In this paper, we address this goal with a new type of convolutional neural network (CNN) whose invariance is…

计算机视觉与模式识别 · 计算机科学 2015-01-08 Julien Mairal , Piotr Koniusz , Zaid Harchaoui , Cordelia Schmid

Image inpainting is the task of filling in missing or masked region of an image with semantically meaningful contents. Recent methods have shown significant improvement in dealing with large-scale missing regions. However, these methods…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Wanglong Lu , Xianta Jiang , Xiaogang Jin , Yong-Liang Yang , Minglun Gong , Tao Wang , Kaijie Shi , Hanli Zhao

During the process of computed tomography (CT), metallic implants often cause disruptive artifacts in the reconstructed images, impeding accurate diagnosis. Several supervised deep learning-based approaches have been proposed for reducing…

图像与视频处理 · 电气工程与系统科学 2024-01-08 Xuan Liu , Yaoqin Xie , Songhui Diao , Shan Tan , Xiaokun Liang

Several recent works have addressed the ability of deep learning to disclose rich, hierarchical and discriminative models for the most diverse purposes. Specifically in the super-resolution field, Convolutional Neural Networks (CNNs) using…

计算机视觉与模式识别 · 计算机科学 2022-10-21 Eduardo Ribeiro , Andreas Uhl , Fernando Alonso-Fernandez

Though having achieved some progresses, the hand-crafted texture features, e.g., LBP [23], LBP-TOP [11] are still unable to capture the most discriminative cues between genuine and fake faces. In this paper, instead of designing feature by…

计算机视觉与模式识别 · 计算机科学 2014-08-27 Jianwei Yang , Zhen Lei , Stan Z. Li