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With exploiting contextual information over large image regions in an efficient way, the deep convolutional neural network has shown an impressive performance for single image super-resolution (SR). In this paper, we propose a deep…

计算机视觉与模式识别 · 计算机科学 2017-11-16 Yongliang Tang , Weiguo Gong , Xi Chen , Weihong Li

In this paper, we design a Deep Dual-Domain ($\mathbf{D^3}$) based fast restoration model to remove artifacts of JPEG compressed images. It leverages the large learning capacity of deep networks, as well as the problem-specific expertise…

计算机视觉与模式识别 · 计算机科学 2016-04-12 Zhangyang Wang , Ding Liu , Shiyu Chang , Qing Ling , Yingzhen Yang , Thomas S. Huang

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

Multi-organ segmentation of 3D medical images is fundamental with meaningful applications in various clinical automation pipelines. Although deep learning has achieved superior performance, the time and memory consumption of segmenting the…

计算机视觉与模式识别 · 计算机科学 2025-11-12 Xueqi Guo , Halid Ziya Yerebakan , Yoshihisa Shinagawa , Kritika Iyer , Gerardo Hermosillo Valadez

While Computed Tomography (CT) reconstruction from X-ray sinograms is necessary for clinical diagnosis, iodine radiation in the imaging process induces irreversible injury, thereby driving researchers to study sparse-view CT reconstruction,…

图像与视频处理 · 电气工程与系统科学 2021-11-29 Ce Wang , Kun Shang , Haimiao Zhang , Qian Li , Yuan Hui , S. Kevin Zhou

Incorporating computed tomography (CT) reconstruction operators into differentiable pipelines has proven beneficial in many applications. Such approaches usually focus on the projection data and keep the acquisition geometry fixed. However,…

The goal of this paper is to present a non-iterative and more importantly an extremely fast algorithm to reconstruct images from compressively sensed (CS) random measurements. To this end, we propose a novel convolutional neural network…

计算机视觉与模式识别 · 计算机科学 2016-03-09 Kuldeep Kulkarni , Suhas Lohit , Pavan Turaga , Ronan Kerviche , Amit Ashok

Reducing the bit-depth is an effective approach to lower the cost of optical coherence tomography (OCT) systems and increase the transmission efficiency in data acquisition and telemedicine. However, a low bit-depth will lead to the…

图像与视频处理 · 电气工程与系统科学 2021-02-03 Qiangjiang Hao , Kang Zhou , Jianlong Yang , Liyang Fang , Zhengjie Chai , Yuhui Ma , Yan Hu , Shenghua Gao , Jiang Liu

Since medical image data sets contain few samples and singular features, lesions are viewed as highly similar to other tissues. The traditional neural network has a limited ability to learn features. Even if a host of feature maps is…

计算机视觉与模式识别 · 计算机科学 2020-09-29 Hongfeng You , Long Yu , Shengwei Tian , Xiang Ma , Yan Xing , Xiaojie Ma

The resurgence of deep neural networks has created an alternative pathway for low-dose computed tomography denoising by learning a nonlinear transformation function between low-dose CT (LDCT) and normal-dose CT (NDCT) image pairs. However,…

图像与视频处理 · 电气工程与系统科学 2022-11-04 Sutanu Bera , Prabir Kumar Biswas

Existing deep learning approaches for image super-resolution, particularly those based on CNNs and attention mechanisms, often suffer from structural inflexibility. Although graph-based methods offer greater representational adaptability,…

计算机视觉与模式识别 · 计算机科学 2025-10-09 Qiongyang Hu , Wenyang Liu , Wenbin Zou , Yuejiao Su , Lap-Pui Chau , Yi Wang

In this paper, the Primal-Dual UNet for sparse view CT reconstruction is modified to be applicable to cone beam projections and perform reconstructions of entire volumes instead of slices. Experiments show that the PSNR of the proposed…

图像与视频处理 · 电气工程与系统科学 2022-05-18 Philipp Ernst , Soumick Chatterjee , Georg Rose , Andreas Nürnberger

Limited data and low dose constraints are common problems in a variety of tomographic reconstruction paradigms which lead to noisy and incomplete data. Over the past few years sinogram denoising has become an essential pre-processing step…

计算机视觉与模式识别 · 计算机科学 2016-03-15 Faisal Mahmood , Nauman Shahid , Pierre Vandergheynst , Ulf Skoglund

Deep neural networks employ specialized architectures for vision, sequential and language tasks, yet this proliferation obscures their underlying commonalities. We introduce a unified matrix-order framework that casts convolutional,…

机器学习 · 计算机科学 2025-07-24 Yuzhou Zhu

Three-dimensional seismic full-waveform inversion (FWI) provides high-fidelity subsurface velocity models but is restricted by high computational cost, strong nonlinearity, cycle-skipping, and heavy dependence on initial models. Although…

地球物理 · 物理学 2026-03-19 Guoxin Chen , Wenjie Wang , Haiyang Lu , Jinxin Chen

Cardiovascular disease (CVD) is the leading cause of death worldwide, and myocardial perfusion imaging using SPECT has been widely used in the diagnosis of CVDs. The GE 530/570c dedicated cardiac SPECT scanners adopt a stationary geometry…

图像与视频处理 · 电气工程与系统科学 2023-07-25 Huidong Xie , Bo Zhou , Xiongchao Chen , Xueqi Guo , Stephanie Thorn , Yi-Hwa Liu , Ge Wang , Albert Sinusas , Chi Liu

While remarkable advances have been made in Computed Tomography (CT), most of the existing efforts focus on imaging enhancement while reducing radiation dose. How to harmonize CT image data captured using different scanners is vital in…

图像与视频处理 · 电气工程与系统科学 2021-10-20 Md Selim , Jie Zhang , Baowei Fei , Guo-Qiang Zhang , Gary Yeeming Ge , Jin Chen

This paper provides a sparse signal recovery algorithm, DU-PSISTA (Deep Unfolded-Periodic Sketched Iterative Shrinkage-Thresholding Algorithm), which aims to balance computational efficiency and accuracy for recovering high-dimensional…

信号处理 · 电气工程与系统科学 2026-04-23 Tatsuki Tokumura , Ayano Nakai-Kasai , Tadashi Wadayama

This paper presents HITNet, a novel neural network architecture for real-time stereo matching. Contrary to many recent neural network approaches that operate on a full cost volume and rely on 3D convolutions, our approach does not…

计算机视觉与模式识别 · 计算机科学 2023-01-23 Vladimir Tankovich , Christian Häne , Yinda Zhang , Adarsh Kowdle , Sean Fanello , Sofien Bouaziz

Computed tomography (CT) reconstruction plays a crucial role in industrial nondestructive testing and medical diagnosis. Sparse view CT reconstruction aims to reconstruct high-quality CT images while only using a small number of…

图像与视频处理 · 电气工程与系统科学 2024-09-12 Wangduo Xie , Richard Schoonhoven , Tristan van Leeuwen , Matthew B. Blaschko