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Most of the classical denoising methods restore clear results by selecting and averaging pixels in the noisy input. Instead of relying on hand-crafted selecting and averaging strategies, we propose to explicitly learn this process with deep…

计算机视觉与模式识别 · 计算机科学 2019-04-16 Xiangyu Xu , Muchen Li , Wenxiu Sun

In this study, we develop an unsupervised coarse-to-fine video analysis framework and prototype system to extract a salient object in a video sequence. This framework starts from tracking grid-sampled points along temporal frames, typically…

多媒体 · 计算机科学 2018-09-30 Chi Zhang , Alexander Loui

Image deblurring aims to restore high-quality images from blurred ones. While existing deblurring methods have made significant progress, most overlook the fact that the degradation degree varies across different regions. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2025-03-03 Hu Gao , Depeng Dang

Observable motion in videos can give rise to the definition of objects moving with respect to the scene. The task of segmenting such moving objects is referred to as motion segmentation and is usually tackled either by aggregating motion…

计算机视觉与模式识别 · 计算机科学 2020-08-19 Amirhossein Kardoost , Kalun Ho , Peter Ochs , Margret Keuper

State-of-the-art video deblurring methods cannot handle blurry videos recorded in dynamic scenes, since they are built under a strong assumption that the captured scenes are static. Contrary to the existing methods, we propose a video…

计算机视觉与模式识别 · 计算机科学 2016-03-15 Tae Hyun Kim , Seungjun Nah , Kyoung Mu Lee

Motion blur in dynamic scenes is an important yet challenging research topic. Recently, deep learning methods have achieved impressive performance for dynamic scene deblurring. However, the motion information contained in a blurry image has…

计算机视觉与模式识别 · 计算机科学 2021-10-05 Youjian Zhang , Chaoyue Wang , Stephen J. Maybank , Dacheng Tao

Wavelet frame systems are known to be effective in capturing singularities from noisy and degraded images. In this paper, we introduce a new edge driven wavelet frame model for image restoration by approximating images as piecewise smooth…

数值分析 · 数学 2017-01-26 Jae Kyu Choi , Bin Dong , Xiaoqun Zhang

Moire patterns, unwanted color artifacts in images and videos, arise from the interference between spatially high-frequency scene contents and the spatial discrete sampling of digital cameras. Existing demoireing methods primarily rely on…

计算机视觉与模式识别 · 计算机科学 2025-08-06 Xuan Dong , Xiangyuan Sun , Xia Wang , Jian Song , Ya Li , Weixin Li

Real-time magnetic resonance imaging (MRI) methods generally shorten the measuring time by acquiring less data than needed according to the sampling theorem. In order to obtain a proper image from such undersampled data, the reconstruction…

数值分析 · 数学 2013-12-05 Housen Li , Markus Haltmeier , Shuo Zhang , Jens Frahm , Axel Munk

Image restoration is one of the most important areas in imaging science. Mathematical tools have been widely used in image restoration, where wavelet frame based approach is one of the successful examples. In this paper, we introduce a…

泛函分析 · 数学 2016-02-18 Bin Dong , Zuowei Shen , Peichu Xie

Many real-world video sequences cannot be conveniently categorized as general or degenerate; in such cases, imposing a false dichotomy in using the fundamental matrix or homography model for motion segmentation on video sequences would lead…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Xun Xu , Loong-Fah Cheong , Zhuwen Li

Face analysis is a core part of computer vision, in which remarkable progress has been observed in the past decades. Current methods achieve recognition and tracking with invariance to fundamental modes of variation such as illumination, 3D…

计算机视觉与模式识别 · 计算机科学 2018-03-12 Grigorios G. Chrysos , Paolo Favaro , Stefanos Zafeiriou

We propose an adaptive tracking algorithm where the object is modelled as a continuously updated bag of affine subspaces, with each subspace constructed from the object's appearance over several consecutive frames. In contrast to linear…

计算机视觉与模式识别 · 计算机科学 2016-02-08 Sareh Shirazi , Conrad Sanderson , Chris McCool , Mehrtash T. Harandi

Local motion blur in digital images originates from the relative motion between dynamic objects and static imaging systems during exposure. Existing deblurring methods face significant challenges in addressing this problem due to their…

计算机视觉与模式识别 · 计算机科学 2025-07-11 Wei Shang , Dongwei Ren , Wanying Zhang , Pengfei Zhu , Qinghua Hu , Wangmeng Zuo

Recovering clear structures from severely blurry inputs is a challenging problem due to the large movements between the camera and the scene. Although some works apply segmentation maps on human face images for deblurring, they cannot…

计算机视觉与模式识别 · 计算机科学 2023-05-02 Pei Wang , Danna Xue , Yu Zhu , Jinqiu Sun , Qingsen Yan , Sung-eui Yoon , Yanning Zhang

Automatic video segmentation plays an important role in a wide range of computer vision and image processing applications. Recently, various methods have been proposed for this purpose. The problem is that most of these methods are far from…

计算机视觉与模式识别 · 计算机科学 2010-08-16 Akamine Kazuma , Ken Fukuchi , Akisato Kimura , Shigeru Takagi

Recent advancements in video restoration have focused on recovering high-quality video frames from low-quality inputs. Compared with static images, the performance of video restoration significantly depends on efficient exploitation of…

Real-time computational speed and a high degree of precision are requirements for computer-assisted interventions. Applying a segmentation network to a medical video processing task can introduce significant inter-frame prediction noise.…

计算机视觉与模式识别 · 计算机科学 2024-03-06 Robert Mendel , Tobias Rueckert , Dirk Wilhelm , Daniel Rueckert , Christoph Palm

The objective of this paper is a model that is able to discover, track and segment multiple moving objects in a video. We make four contributions: First, we introduce an object-centric segmentation model with a depth-ordered layer…

计算机视觉与模式识别 · 计算机科学 2022-11-15 Junyu Xie , Weidi Xie , Andrew Zisserman

We consider the imaging problem of the reconstruction of a three-dimensional object via optical diffraction tomography under the assumptions of the Born approximation. Our focus lies in the situation that a rigid object performs an…

数值分析 · 数学 2024-07-11 Robert Beinert , Michael Quellmalz