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Removing spatially variant motion blur from a blurry image is a challenging problem as blur sources are complicated and difficult to model accurately. Recent progress in deep neural networks suggests that kernel free single image deblurring…

计算机视觉与模式识别 · 计算机科学 2019-11-26 Shuang Zhang , Ada Zhen , Robert L. Stevenson

Blind image deblurring, i.e., deblurring without knowledge of the blur kernel, is a highly ill-posed problem. The problem can be solved in two parts: i) estimate a blur kernel from the blurry image, and ii) given estimated blur kernel,…

计算机视觉与模式识别 · 计算机科学 2018-12-26 Yuanchao Bai , Gene Cheung , Xianming Liu , Wen Gao

The task of image deblurring is a very ill-posed problem as both the image and the blur are unknown. Moreover, when pictures are taken in the wild, this task becomes even more challenging due to the blur varying spatially and the occlusions…

计算机视觉与模式识别 · 计算机科学 2017-08-30 Mehdi Noroozi , Paramanand Chandramouli , Paolo Favaro

Blind image restoration (IR) is a common yet challenging problem in computer vision. Classical model-based methods and recent deep learning (DL)-based methods represent two different methodologies for this problem, each with their own…

图像与视频处理 · 电气工程与系统科学 2024-05-02 Zongsheng Yue , Hongwei Yong , Qian Zhao , Lei Zhang , Deyu Meng , Kwan-Yee K. Wong

Image deblurring is an economic way to reduce certain degradations (blur and noise) in acquired images. Thus, it has become essential tool in high resolution imaging in many applications, e.g., astronomy, microscopy or computational…

最优化与控制 · 数学 2017-05-19 Rahul Mourya , André Ferrari , Rémi Flamary , Pascal Bianchi , Cédric Richard

State-of-the-art algorithms for imaging inverse problems (namely deblurring and reconstruction) are typically iterative, involving a denoising operation as one of its steps. Using a state-of-the-art denoising method in this context is not…

计算机视觉与模式识别 · 计算机科学 2016-08-03 Afonso M. Teodoro , José M. Bioucas-Dias , Mário A. T. Figueiredo

Monocular depth estimation is a challenging task that predicts the pixel-wise depth from a single 2D image. Current methods typically model this problem as a regression or classification task. We propose DiffusionDepth, a new approach that…

计算机视觉与模式识别 · 计算机科学 2023-08-30 Yiqun Duan , Xianda Guo , Zheng Zhu

Removing camera motion blur from a single light field is a challenging task since it is highly ill-posed inverse problem. The problem becomes even worse when blur kernel varies spatially due to scene depth variation and high-order camera…

计算机视觉与模式识别 · 计算机科学 2018-06-15 Dongwoo Lee , Haesol Park , In Kyu Park , Kyoung Mu Lee

In recent years, the widespread use of deep neural networks (DNNs) has facilitated great improvements in performance for computer vision tasks like image classification and object recognition. In most realistic computer vision applications,…

计算机视觉与模式识别 · 计算机科学 2019-08-27 Tejas Borkar , Lina Karam

A single color image can contain many cues informative towards different aspects of local geometric structure. We approach the problem of monocular depth estimation by using a neural network to produce a mid-level representation that…

计算机视觉与模式识别 · 计算机科学 2016-09-08 Ayan Chakrabarti , Jingyu Shao , Gregory Shakhnarovich

Most current single image camera calibration methods rely on specific image features or user input, and cannot be applied to natural images captured in uncontrolled settings. We propose directly inferring camera calibration parameters from…

计算机视觉与模式识别 · 计算机科学 2018-04-24 Yannick Hold-Geoffroy , Kalyan Sunkavalli , Jonathan Eisenmann , Matt Fisher , Emiliano Gambaretto , Sunil Hadap , Jean-François Lalonde

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

Deep learning techniques have enabled rapid progress in monocular depth estimation, but their quality is limited by the ill-posed nature of the problem and the scarcity of high quality datasets. We estimate depth from a single camera by…

计算机视觉与模式识别 · 计算机科学 2019-08-15 Rahul Garg , Neal Wadhwa , Sameer Ansari , Jonathan T. Barron

Night imaging with modern smartphone cameras is troublesome due to low photon count and unavoidable noise in the imaging system. Directly adjusting exposure time and ISO ratings cannot obtain sharp and noise-free images at the same time in…

计算机视觉与模式识别 · 计算机科学 2022-07-15 Yuzhi Zhao , Yongzhe Xu , Qiong Yan , Dingdong Yang , Xuehui Wang , Lai-Man Po

When capturing and storing images, devices inevitably introduce noise. Reducing this noise is a critical task called image denoising. Deep learning has become the de facto method for image denoising, especially with the emergence of…

计算机视觉与模式识别 · 计算机科学 2023-03-24 Haoyu Chen , Jinjin Gu , Yihao Liu , Salma Abdel Magid , Chao Dong , Qiong Wang , Hanspeter Pfister , Lei Zhu

In this paper, we introduce robust and synergetic hand-crafted features and a simple but efficient deep feature from a convolutional neural network (CNN) architecture for defocus estimation. This paper systematically analyzes the…

计算机视觉与模式识别 · 计算机科学 2017-05-01 Jinsun Park , Yu-Wing Tai , Donghyeon Cho , In So Kweon

In this paper we propose a method for estimating depth from a single image using a coarse to fine approach. We argue that modeling the fine depth details is easier after a coarse depth map has been computed. We express a global (coarse)…

计算机视觉与模式识别 · 计算机科学 2016-02-10 Mohammad Haris Baig , Lorenzo Torresani

Estimating the location where an image was taken based solely on the contents of the image is a challenging task, even for humans, as properly labeling an image in such a fashion relies heavily on contextual information, and is not as…

计算机视觉与模式识别 · 计算机科学 2017-12-29 Jesse M. Johns , Jeremiah Rounds , Michael J. Henry

Single-image super-resolution is a fundamental task for vision applications to enhance the image quality with respect to spatial resolution. If the input image contains degraded pixels, the artifacts caused by the degradation could be…

计算机视觉与模式识别 · 计算机科学 2018-07-31 Xinyi Zhang , Hang Dong , Zhe Hu , Wei-Sheng Lai , Fei Wang , Ming-Hsuan Yang

This paper presents a unified framework that allows high-quality dynamic Gaussian Splatting from both defocused and motion-blurred monocular videos. Due to the significant difference between the formation processes of defocus blur and…

计算机视觉与模式识别 · 计算机科学 2025-11-03 Xuankai Zhang , Junjin Xiao , Qing Zhang