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We introduce a paradigm for nonlocal sparsity reinforced deep convolutional neural network denoising. It is a combination of a local multiscale denoising by a convolutional neural network (CNN) based denoiser and a nonlocal denoising based…

图像与视频处理 · 电气工程与系统科学 2018-08-15 Cristóvão Cruz , Alessandro Foi , Vladimir Katkovnik , Karen Egiazarian

The point process is a solid framework to model sequential data, such as videos, by exploring the underlying relevance. As a challenging problem for high-level video understanding, weakly supervised action recognition and localization in…

计算机视觉与模式识别 · 计算机科学 2019-11-28 Xiao-Yu Zhang , Changsheng Li , Haichao Shi , Xiaobin Zhu , Peng Li , Jing Dong

Video Denoising is one of the fundamental tasks of any videoprocessing pipeline. It is different from image denoising due to the tem-poral aspects of video frames, and any image denoising approach appliedto videos will result in flickering.…

图像与视频处理 · 电气工程与系统科学 2020-08-28 Aryansh Omray , Samyak Jain , Utsav Krishnan , Pratik Chattopadhyay

Deep neural networks for real-time video matting suffer significant computational limitations on edge devices, hindering their adoption in widespread applications such as online conferences and short-form video production. Binarization…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Haotong Qin , Xianglong Liu , Xudong Ma , Lei Ke , Yulun Zhang , Jie Luo , Michele Magno

With the widespread application of convolutional neural networks (CNNs), the traditional model based denoising algorithms are now outperformed. However, CNNs face two problems. First, they are computationally demanding, which makes their…

图像与视频处理 · 电气工程与系统科学 2024-03-07 Yu Guo , Axel Davy , Gabriele Facciolo , Jean-Michel Morel , Qiyu Jin

Implicit neural representations (INRs) are the subject of extensive research, particularly in their application to modeling complex signals by mapping spatial and temporal coordinates to corresponding values. When handling videos, mapping…

计算机视觉与模式识别 · 计算机科学 2025-06-27 Taiga Hayami , Kakeru Koizumi , Hiroshi Watanabe

Single Image Super-Resolution (SISR) aims to recover a high-resolution image from a given low-resolution version of it. Video Super Resolution (VSR) targets series of given images, aiming to fuse them to create a higher resolution outcome.…

图像与视频处理 · 电气工程与系统科学 2019-10-02 Alon Brifman , Yaniv Romano , Michael Elad

Unlike image blending algorithms, video blending algorithms have been little studied. In this paper, we investigate 6 popular blending algorithms---feather blending, multi-band blending, modified Poisson blending, mean value coordinate…

计算机视觉与模式识别 · 计算机科学 2016-12-28 Zhe Zhu , Jiaming Lu , Minxuan Wang , Songhai Zhang , Ralph Martin , Hantao Liu , Shimin Hu

Image patch matching, which is the process of identifying corresponding patches across images, has been used as a subroutine for many computer vision and image processing tasks. State -of-the-art patch matching techniques take image patches…

计算机视觉与模式识别 · 计算机科学 2018-11-09 Akila Pemasiri , Kien Nguyen , Sridha Sridharan , Clinton Fookes

In spite of the improvements achieved by the several denoising algorithms over the years, many of them still fail at preserving the fine details of the image after denoising. This is as a result of the smooth-out effect they have on the…

图像与视频处理 · 电气工程与系统科学 2021-07-15 Basit O. Alawode , Mudassir Masood , Tarig Ballal , Tareq Al-Naffouri

In this paper, we propose a new image denoising method, tailored to specific classes of images, assuming that a dataset of clean images of the same class is available. Similarly to the non-local means (NLM) algorithm, the proposed method…

计算机视觉与模式识别 · 计算机科学 2017-06-22 Milad Niknejad , Jose M. Bioucas-Dias , Mario A. T. Figueiredo

Visual defect detection plays an important role in intelligent industry. Patch based methods consider visual images as a collection of image patches according to positions, which have stronger discriminative ability for small defects in…

计算机视觉与模式识别 · 计算机科学 2024-01-19 Chao Han , Yudong Yan

With the advent of sophisticated cameras, the urge to capture high-quality images has grown enormous. However, the noise contamination of the images results in substandard expectations among the people; thus, image denoising is an essential…

图像与视频处理 · 电气工程与系统科学 2024-07-19 Kelum Gajamannage , Yonggi Park , S. M. Mallikarjunaiah , Sunil Mathur

As quotidian use of sophisticated cameras surges, people in modern society are more interested in capturing fine-quality images. However, the quality of the images might be inferior to people's expectations due to the noise contamination in…

图像与视频处理 · 电气工程与系统科学 2022-03-08 Yonggi Park , Kelum Gajamannage , Alexey Sadovski

Convolutional neural networks (CNNs) have been extensively applied for image recognition problems giving state-of-the-art results on recognition, detection, segmentation and retrieval. In this work we propose and evaluate several deep…

计算机视觉与模式识别 · 计算机科学 2015-04-14 Joe Yue-Hei Ng , Matthew Hausknecht , Sudheendra Vijayanarasimhan , Oriol Vinyals , Rajat Monga , George Toderici

M3DDM provides a computationally efficient framework for video outpainting via latent diffusion modeling. However, it exhibits significant quality degradation -- manifested as spatial blur and temporal inconsistency -- under challenging…

计算机视觉与模式识别 · 计算机科学 2026-01-19 Takuya Murakawa , Takumi Fukuzawa , Ning Ding , Toru Tamaki

Despite the significant success of deep learning in computer vision tasks, cross-domain tasks still present a challenge in which the model's performance will degrade when the training set and the test set follow different distributions.…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Lei Qi , Dongjia Zhao , Yinghuan Shi , Xin Geng

In order to improve speckle noise denoising of block matching 3d filtering (BM3D) method, an image frequency-domain multi-layer fusion enhancement method (MLFE-BM3D) based on nonsubsampled contourlet transform (NSCT) has been proposed. The…

图像与视频处理 · 电气工程与系统科学 2020-01-07 Huang Shuo , Zhou Ping , Shi Hao , Sun Yu , Wan Suiren

This work presents VTok, a unified video tokenization framework that can be used for both generation and understanding tasks. Unlike the leading vision-language systems that tokenize videos through a naive frame-sampling strategy, we…

计算机视觉与模式识别 · 计算机科学 2026-02-05 Feng Wang , Yichun Shi , Ceyuan Yang , Qiushan Guo , Jingxiang Sun , Alan Yuille , Peng Wang

In the evolving landscape of video enhancement and editing methodologies, a majority of deep learning techniques often rely on extensive datasets of observed input and ground truth sequence pairs for optimal performance. Such reliance often…

计算机视觉与模式识别 · 计算机科学 2024-12-10 Gaurav Shrivastava , Ser-Nam Lim , Abhinav Shrivastava