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相关论文: Enhancing Quality for VVC Compressed Videos by Joi…

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The strong temporal consistency of surveillance video enables compelling compression performance with traditional methods, but downstream vision applications operate on decoded image frames with a high data rate. Since it is not…

多媒体 · 计算机科学 2024-02-09 Andrew C. Freeman , Ketan Mayer-Patel , Montek Singh

We present VEnhancer, a generative space-time enhancement framework that improves the existing text-to-video results by adding more details in spatial domain and synthetic detailed motion in temporal domain. Given a generated low-quality…

计算机视觉与模式识别 · 计算机科学 2024-07-11 Jingwen He , Tianfan Xue , Dongyang Liu , Xinqi Lin , Peng Gao , Dahua Lin , Yu Qiao , Wanli Ouyang , Ziwei Liu

The spatio-temporal information among video sequences is significant for video super-resolution (SR). However, the spatio-temporal information cannot be fully used by existing video SR methods since spatial feature extraction and temporal…

计算机视觉与模式识别 · 计算机科学 2021-11-29 Xinyi Ying , Longguang Wang , Yingqian Wang , Weidong Sheng , Wei An , Yulan Guo

As deep convolutional neural networks (DNNs) are widely used in various fields of computer vision, leveraging the overfitting ability of the DNN to achieve video resolution upscaling has become a new trend in the modern video delivery…

计算机视觉与模式识别 · 计算机科学 2023-06-21 Gen Li , Jie Ji , Minghai Qin , Wei Niu , Bin Ren , Fatemeh Afghah , Linke Guo , Xiaolong Ma

Deep network-based image and video Compressive Sensing(CS) has attracted increasing attentions in recent years. However, in the existing deep network-based CS methods, a simple stacked convolutional network is usually adopted, which not…

计算机视觉与模式识别 · 计算机科学 2023-04-18 Tong Zhang , Wenxue Cui , Chen Hui , Feng Jiang

This paper presents a deep learning framework for medical video segmentation. Convolution neural network (CNN) and transformer-based methods have achieved great milestones in medical image segmentation tasks due to their incredible semantic…

计算机视觉与模式识别 · 计算机科学 2024-02-13 Chengxi Zeng , Xinyu Yang , David Smithard , Majid Mirmehdi , Alberto M Gambaruto , Tilo Burghardt

Existing video super-resolution (VSR) methods generally adopt a recurrent propagation network to extract spatio-temporal information from the entire video sequences, exhibiting impressive performance. However, the key components in…

计算机视觉与模式识别 · 计算机科学 2024-08-27 Hao Li , Jiangxin Dong , Jinshan Pan

Within the scope of this contribution we propose a novel efficient spatio-temporal prediction algorithm for video coding. The algorithm operates in two stages. First, motion compensation is performed on the block to be predicted in order to…

图像与视频处理 · 电气工程与系统科学 2022-07-21 Jürgen Seiler , Haricharan Lakshman , André Kaup

The performance of Video Instance Segmentation (VIS) methods has improved significantly with the advent of transformer networks. However, these networks often face challenges in training due to the high annotation cost. To address this,…

计算机视觉与模式识别 · 计算机科学 2024-11-26 Farnoosh Arefi , Amir M. Mansourian , Shohreh Kasaei

Recently, learned video compression has achieved exciting performance. Following the traditional hybrid prediction coding framework, most learned methods generally adopt the motion estimation motion compensation (MEMC) method to remove…

图像与视频处理 · 电气工程与系统科学 2023-10-20 Yiming Wang , Qian Huang , Bin Tang , Huashan Sun , Xing Li

Convolutional neural networks have achieved excellent results in compressed video quality enhancement task in recent years. State-of-the-art methods explore the spatiotemporal information of adjacent frames mainly by deformable convolution.…

多媒体 · 计算机科学 2022-10-26 Li Yu , Wenshuai Chang , Shiyu Wu , Moncef Gabbouj

In content-based video retrieval (CBVR), dealing with large-scale collections, efficiency is as important as accuracy; thus, several video-level feature-based studies have actively been conducted. Nevertheless, owing to the severe…

计算机视觉与模式识别 · 计算机科学 2023-12-20 Won Jo , Geuntaek Lim , Gwangjin Lee , Hyunwoo Kim , Byungsoo Ko , Yukyung Choi

Spatio-temporal feature learning is of central importance for action recognition in videos. Existing deep neural network models either learn spatial and temporal features independently (C2D) or jointly with unconstrained parameters (C3D).…

计算机视觉与模式识别 · 计算机科学 2019-03-05 Chao Li , Qiaoyong Zhong , Di Xie , Shiliang Pu

Video snapshot compressive imaging (SCI) captures multiple sequential video frames by a single measurement using the idea of computational imaging. The underlying principle is to modulate high-speed frames through different masks and these…

图像与视频处理 · 电气工程与系统科学 2022-09-09 Lishun Wang , Miao Cao , Yong Zhong , Xin Yuan

Despite the success of deep learning for static image understanding, it remains unclear what are the most effective network architectures for the spatial-temporal modeling in videos. In this paper, in contrast to the existing CNN+RNN or…

计算机视觉与模式识别 · 计算机科学 2018-12-12 Dongliang He , Zhichao Zhou , Chuang Gan , Fu Li , Xiao Liu , Yandong Li , Limin Wang , Shilei Wen

Semantic segmentation of aerial videos has been extensively used for decision making in monitoring environmental changes, urban planning, and disaster management. The reliability of these decision support systems is dependent on the…

计算机视觉与模式识别 · 计算机科学 2021-05-28 Girisha S , Ujjwal Verma , Manohara Pai M M , Radhika Pai

Online processing of compressed videos to increase their resolutions attracts increasing and broad attention. Video Super-Resolution (VSR) using recurrent neural network architecture is a promising solution due to its efficient modeling of…

计算机视觉与模式识别 · 计算机科学 2022-10-18 Hengsheng Zhang , Xueyi Zou , Jiaming Guo , Youliang Yan , Rong Xie , Li Song

Recently, Neural Video Compression (NVC) techniques have achieved remarkable performance, even surpassing the best traditional lossy video codec. However, most existing NVC methods heavily rely on transmitting Motion Vector (MV) to generate…

计算机视觉与模式识别 · 计算机科学 2024-06-13 Feng Wang , Haihang Ruan , Zhihuang Xie , Ronggang Wang , Xiangyu Yue

We investigate video classification via a two-stream convolutional neural network (CNN) design that directly ingests information extracted from compressed video bitstreams. Our approach begins with the observation that all modern video…

计算机视觉与模式识别 · 计算机科学 2017-12-21 Aaron Chadha , Alhabib Abbas , Yiannis Andreopoulos

We leverage unsupervised learning of depth, egomotion, and camera intrinsics to improve the performance of single-image semantic segmentation, by enforcing 3D-geometric and temporal consistency of segmentation masks across video frames. The…

计算机视觉与模式识别 · 计算机科学 2020-05-22 Ankita Pasad , Ariel Gordon , Tsung-Yi Lin , Anelia Angelova