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We introduce a video compression algorithm based on instance-adaptive learning. On each video sequence to be transmitted, we finetune a pretrained compression model. The optimal parameters are transmitted to the receiver along with the…

图像与视频处理 · 电气工程与系统科学 2023-06-26 Ties van Rozendaal , Johann Brehmer , Yunfan Zhang , Reza Pourreza , Auke Wiggers , Taco S. Cohen

Video captioning is the task of automatically generating a textual description of the actions in a video. Although previous work (e.g. sequence-to-sequence model) has shown promising results in abstracting a coarse description of a short…

计算机视觉与模式识别 · 计算机科学 2018-03-30 Xin Wang , Wenhu Chen , Jiawei Wu , Yuan-Fang Wang , William Yang Wang

Despite the advances in the field of generative models in computer vision, video stabilization still lacks a pure regressive deep-learning-based formulation. Deep video stabilization is generally formulated with the help of explicit motion…

计算机视觉与模式识别 · 计算机科学 2021-10-25 Muhammad Kashif Ali , Sangjoon Yu , Tae Hyun Kim

In this paper, we present a novel adversarial lossy video compression model. At extremely low bit-rates, standard video coding schemes suffer from unpleasant reconstruction artifacts such as blocking, ringing etc. Existing learned neural…

图像与视频处理 · 电气工程与系统科学 2021-06-22 Vijay Veerabadran , Reza Pourreza , Amirhossein Habibian , Taco Cohen

To exploit high temporal correlations in video frames of the same scene, the current frame is predicted from the already-encoded reference frames using block-based motion estimation and compensation techniques. While this approach can…

计算机视觉与模式识别 · 计算机科学 2022-08-16 S. M. A. K. Rajin , M. Murshed , M. Paul , S. W. Teng , J. Ma

Recently, self-supervised representation learning gives further development in multimedia technology. Most existing self-supervised learning methods are applicable to packaged data. However, when it comes to streamed data, they are…

计算机视觉与模式识别 · 计算机科学 2022-11-03 Zhiwei Lin , Yongtao Wang , Hongxiang Lin

Video anomaly detection is a challenging task in the computer vision community. Most single task-based methods do not consider the independence of unique spatial and temporal patterns, while two-stream structures lack the exploration of the…

计算机视觉与模式识别 · 计算机科学 2022-07-28 Yang Liu , Jing Liu , Mengyang Zhao , Dingkang Yang , Xiaoguang Zhu , Liang Song

In this paper we present an end-to-end meta-learned system for image compression. Traditional machine learning based approaches to image compression train one or more neural network for generalization performance. However, at inference…

图像与视频处理 · 电气工程与系统科学 2021-05-04 Nannan Zou , Honglei Zhang , Francesco Cricri , Hamed R. Tavakoli , Jani Lainema , Miska Hannuksela , Emre Aksu , Esa Rahtu

Data augmentation is a ubiquitous technique for improving image classification when labeled data is scarce. Constraining the model predictions to be invariant to diverse data augmentations effectively injects the desired representational…

计算机视觉与模式识别 · 计算机科学 2022-11-21 Yuliang Zou , Jinwoo Choi , Qitong Wang , Jia-Bin Huang

Training robust deep video representations has proven to be much more challenging than learning deep image representations. This is in part due to the enormous size of raw video streams and the high temporal redundancy; the true and…

计算机视觉与模式识别 · 计算机科学 2018-04-02 Chao-Yuan Wu , Manzil Zaheer , Hexiang Hu , R. Manmatha , Alexander J. Smola , Philipp Krähenbühl

We study self-supervised video representation learning, which is a challenging task due to 1) lack of labels for explicit supervision; 2) unstructured and noisy visual information. Existing methods mainly use contrastive loss with video…

计算机视觉与模式识别 · 计算机科学 2021-08-18 Deng Huang , Wenhao Wu , Weiwen Hu , Xu Liu , Dongliang He , Zhihua Wu , Xiangmiao Wu , Mingkui Tan , Errui Ding

Deep learning based single image super-resolution models have been widely studied and superb results are achieved in upscaling low-resolution images with fixed scale factor and downscaling degradation kernel. To improve real world…

图像与视频处理 · 电气工程与系统科学 2022-03-09 Zhihong Pan , Baopu Li , Dongliang He , Mingde Yao , Wenhao Wu , Tianwei Lin , Xin Li , Errui Ding

Deep neural networks require collecting and annotating large amounts of data to train successfully. In order to alleviate the annotation bottleneck, we propose a novel self-supervised representation learning approach for spatiotemporal…

计算机视觉与模式识别 · 计算机科学 2019-10-29 Alaaeldin El-Nouby , Shuangfei Zhai , Graham W. Taylor , Joshua M. Susskind

As a widely studied task, video restoration aims to enhance the quality of the videos with multiple potential degradations, such as noises, blurs and compression artifacts. Among video restorations, compressed video quality enhancement and…

计算机视觉与模式识别 · 计算机科学 2023-02-07 Meisong Zheng , Qunliang Xing , Minglang Qiao , Mai Xu , Lai Jiang , Huaida Liu , Ying Chen

As an increasing amount of image and video content will be analyzed by machines, there is demand for a new codec paradigm that is capable of compressing visual input primarily for the purpose of computer vision inference, while secondarily…

图像与视频处理 · 电气工程与系统科学 2023-01-12 Ezgi Ozyilkan , Mateen Ulhaq , Hyomin Choi , Fabien Racape

In this paper we show that learning video feature spaces in which temporal cycles are maximally predictable benefits action classification. In particular, we propose a novel learning approach termed Cycle Encoding Prediction (CEP) that is…

计算机视觉与模式识别 · 计算机科学 2021-10-26 Xinyu Yang , Majid Mirmehdi , Tilo Burghardt

The framework of dominant learned video compression methods is usually composed of motion prediction modules as well as motion vector and residual image compression modules, suffering from its complex structure and error propagation…

图像与视频处理 · 电气工程与系统科学 2021-04-14 Zhenhong Sun , Zhiyu Tan , Xiuyu Sun , Fangyi Zhang , Dongyang Li , Yichen Qian , Hao Li

We tackle catastrophic forgetting problem in the context of class-incremental learning for video recognition, which has not been explored actively despite the popularity of continual learning. Our framework addresses this challenging task…

计算机视觉与模式识别 · 计算机科学 2022-03-28 Jaeyoo Park , Minsoo Kang , Bohyung Han

An ever increasing amount of our digital communication, media consumption, and content creation revolves around videos. We share, watch, and archive many aspects of our lives through them, all of which are powered by strong video…

计算机视觉与模式识别 · 计算机科学 2018-04-20 Chao-Yuan Wu , Nayan Singhal , Philipp Krähenbühl

Traditional video compression technologies have been developed over decades in pursuit of higher coding efficiency. Efficient temporal information representation plays a key role in video coding. Thus, in this paper, we propose to exploit…

图像与视频处理 · 电气工程与系统科学 2019-12-16 Haojie Liu , Han shen , Lichao Huang , Ming Lu , Tong Chen , Zhan Ma