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Encoding textural content remains a challenge for current standardised video codecs. It is therefore beneficial to understand video textures in terms of both their spatio-temporal characteristics and their encoding statistics in order to…

图像与视频处理 · 电气工程与系统科学 2021-02-09 Angeliki V. Katsenou , Mariana Afonso , David R. Bull

High Dynamic Range (HDR) videos can represent a much greater range of brightness and color than Standard Dynamic Range (SDR) videos and are rapidly becoming an industry standard. HDR videos have more challenging capture, transmission, and…

图像与视频处理 · 电气工程与系统科学 2022-09-22 Zaixi Shang , Joshua P. Ebenezer , Alan C. Bovik , Yongjun Wu , Hai Wei , Sriram Sethuraman

Although many video prediction methods have obtained good performance in low-resolution (64$\sim$128) videos, predictive models for high-resolution (512$\sim$4K) videos have not been fully explored yet, which are more meaningful due to the…

计算机视觉与模式识别 · 计算机科学 2022-03-31 Zheng Chang , Xinfeng Zhang , Shanshe Wang , Siwei Ma , Wen Gao

High-spatio-temporal resolution (HSTR) video recording plays a crucial role in enhancing various imagery tasks that require fine-detailed information. State-of-the-art cameras provide this required high frame-rate and high spatial…

计算机视觉与模式识别 · 计算机科学 2024-09-09 H. Umut Suluhan , Abdullah Enes Doruk , Hasan F. Ates , Bahadir K. Gunturk

In visual place recognition (VPR), filtering and sequence-based matching approaches can improve performance by integrating temporal information across image sequences, especially in challenging conditions. While these methods are commonly…

计算机视觉与模式识别 · 计算机科学 2025-07-30 Somayeh Hussaini , Tobias Fischer , Michael Milford

We study on image super-resolution (SR), which aims to recover realistic textures from a low-resolution (LR) image. Recent progress has been made by taking high-resolution images as references (Ref), so that relevant textures can be…

计算机视觉与模式识别 · 计算机科学 2020-06-23 Fuzhi Yang , Huan Yang , Jianlong Fu , Hongtao Lu , Baining Guo

Due to the significant information loss in low-resolution (LR) images, it has become extremely challenging to further advance the state-of-the-art of single image super-resolution (SISR). Reference-based super-resolution (RefSR), on the…

计算机视觉与模式识别 · 计算机科学 2019-03-11 Zhifei Zhang , Zhaowen Wang , Zhe Lin , Hairong Qi

Existing methods for single image super-resolution (SR) are typically evaluated with synthetic degradation models such as bicubic or Gaussian downsampling. In this paper, we investigate SR from the perspective of camera lenses, named as…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Chang Chen , Zhiwei Xiong , Xinmei Tian , Zheng-Jun Zha , Feng Wu

Convolutional neural networks have enabled accurate image super-resolution in real-time. However, recent attempts to benefit from temporal correlations in video super-resolution have been limited to naive or inefficient architectures. In…

计算机视觉与模式识别 · 计算机科学 2017-04-11 Jose Caballero , Christian Ledig , Andrew Aitken , Alejandro Acosta , Johannes Totz , Zehan Wang , Wenzhe Shi

Single-image super-resolution (SR) has achieved remarkable progress with deep learning, yet most approaches rely on distortion-oriented losses or heuristic perceptual priors, which often lead to a trade-off between fidelity and visual…

图像与视频处理 · 电气工程与系统科学 2026-02-26 Wei Zhou , Yixiao Li , Hadi Amirpour , Xiaoshuai Hao , Jiang Liu , Peng Wang , Hantao Liu

We propose a self-supervised learning approach for videos that learns representations of both the RGB frames and the accompanying audio without human supervision. In contrast to images that capture the static scene appearance, videos also…

计算机视觉与模式识别 · 计算机科学 2023-02-16 Simon Jenni , Alexander Black , John Collomosse

The rate-distortion-perception (RDP) tradeoff characterizes the fundamental limits of lossy compression by jointly considering bitrate, reconstruction fidelity, and perceptual quality. While recent neural compression methods have improved…

信息论 · 计算机科学 2026-05-25 Yuhan Wang , Suzhi Bi , Ying-Jun Angela Zhang

Most of the existing video self-supervised methods mainly leverage temporal signals of videos, ignoring that the semantics of moving objects and environmental information are all critical for video-related tasks. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2021-07-09 Wei Li , Dezhao Luo , Bo Fang , Yu Zhou , Weiping Wang

This paper addresses the problem of estimating the shape of objects that exhibit spatially-varying reflectance. We assume that multiple images of the object are obtained under a fixed view-point and varying illumination, i.e., the setting…

计算机视觉与模式识别 · 计算机科学 2016-09-22 Zhuo Hui , Aswin C Sankaranarayanan

We introduce a novel formulation for continuous space-time video super-resolution. Instead of decoupling the representation of a video sequence into separate spatial and temporal components and relying on brittle, explicit frame warping for…

计算机视觉与模式识别 · 计算机科学 2026-03-06 Alexander Becker , Julius Erbach , Dominik Narnhofer , Konrad Schindler

This paper proposes a self-supervised learning approach for video features that results in significantly improved performance on downstream tasks (such as video classification, captioning and segmentation) compared to existing methods. Our…

机器学习 · 计算机科学 2019-10-01 Chen Sun , Fabien Baradel , Kevin Murphy , Cordelia Schmid

Diffusion models have established new state of the art in a multitude of computer vision tasks, including image restoration. Diffusion-based inverse problem solvers generate reconstructions of exceptional visual quality from heavily…

图像与视频处理 · 电气工程与系统科学 2024-08-21 Zalan Fabian , Berk Tinaz , Mahdi Soltanolkotabi

Human processes video reasoning in a sequential spatio-temporal reasoning logic, we first identify the relevant frames ("when") and then analyse the spatial relationships ("where") between key objects, and finally leverage these…

计算机视觉与模式识别 · 计算机科学 2025-03-17 Zixu Cheng , Jian Hu , Ziquan Liu , Chenyang Si , Wei Li , Shaogang Gong

Visual tempo, which describes how fast an action goes, has shown its potential in supervised action recognition. In this work, we demonstrate that visual tempo can also serve as a self-supervision signal for video representation learning.…

计算机视觉与模式识别 · 计算机科学 2020-12-21 Ceyuan Yang , Yinghao Xu , Bo Dai , Bolei Zhou

Human visual systems are robust to a wide range of image transformations that are challenging for artificial networks. We present the first study of image model robustness to the minute transformations found across video frames, which we…

计算机视觉与模式识别 · 计算机科学 2019-09-02 Keren Gu , Brandon Yang , Jiquan Ngiam , Quoc Le , Jonathon Shlens