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Detection Transformer (DETR) and Deformable DETR have been proposed to eliminate the need for many hand-designed components in object detection while demonstrating good performance as previous complex hand-crafted detectors. However, their…

计算机视觉与模式识别 · 计算机科学 2022-11-23 Qianyu Zhou , Xiangtai Li , Lu He , Yibo Yang , Guangliang Cheng , Yunhai Tong , Lizhuang Ma , Dacheng Tao

Partial Domain Adaptation (PDA) is a practical and general domain adaptation scenario, which relaxes the fully shared label space assumption such that the source label space subsumes the target one. The key challenge of PDA is the issue of…

计算机视觉与模式识别 · 计算机科学 2021-07-13 Yuecong Xu , Jianfei Yang , Haozhi Cao , Qi Li , Kezhi Mao , Zhenghua Chen

Self-attention has been successfully applied to video representation learning due to the effectiveness of modeling long range dependencies. Existing approaches build the dependencies merely by computing the pairwise correlations along…

计算机视觉与模式识别 · 计算机科学 2021-05-28 Xudong Guo , Xun Guo , Yan Lu

In order to be able to deliver today's voluminous amount of video contents through limited bandwidth channels in a perceptually optimal way, it is important to consider perceptual trade-offs of compression and space-time downsampling…

图像与视频处理 · 电气工程与系统科学 2021-04-01 Dae Yeol Lee , Hyunsuk Ko , Jongho Kim , Alan C. Bovik

Orthogonal time frequency space (OTFS) is a modulation technique which is robust against the disruptive effects of doubly-selective channels. In this paper, we perform an experimental study of OTFS by a real-time software defined radio…

Real-world video super-resolution (VSR) presents significant challenges due to complex and unpredictable degradations. Although some recent methods utilize image diffusion models for VSR and have shown improved detail generation…

计算机视觉与模式识别 · 计算机科学 2025-07-02 Zhe Kong , Le Li , Yong Zhang , Feng Gao , Shaoshu Yang , Tao Wang , Kaihao Zhang , Zhuoliang Kang , Xiaoming Wei , Guanying Chen , Wenhan Luo

Video super-resolution (VSR) is a task that aims to reconstruct high-resolution (HR) frames from the low-resolution (LR) reference frame and multiple neighboring frames. The vital operation is to utilize the relative misaligned frames for…

计算机视觉与模式识别 · 计算机科学 2022-11-04 Meiqin Liu , Shuo Jin , Chao Yao , Chunyu Lin , Yao Zhao

Space-time video super-resolution (STVSR) aims to increase the spatial and temporal resolutions of low-resolution and low-frame-rate videos. Recently, deformable convolution based methods have achieved promising STVSR performance, but they…

计算机视觉与模式识别 · 计算机科学 2021-05-03 Gang Xu , Jun Xu , Zhen Li , Liang Wang , Xing Sun , Ming-Ming Cheng

Quality assessment of omnidirectional images has become increasingly urgent due to the rapid growth of virtual reality applications. Different from traditional 2D images and videos, omnidirectional contents can provide consumers with freely…

图像与视频处理 · 电气工程与系统科学 2020-08-24 Jiahua Xu , Wei Zhou , Zhibo Chen

Video inpainting aims to fill the given spatiotemporal holes with realistic appearance but is still a challenging task even with prosperous deep learning approaches. Recent works introduce the promising Transformer architecture into deep…

计算机视觉与模式识别 · 计算机科学 2021-04-15 Rui Liu , Hanming Deng , Yangyi Huang , Xiaoyu Shi , Lewei Lu , Wenxiu Sun , Xiaogang Wang , Jifeng Dai , Hongsheng Li

Solving image-to-3D from a single view is an ill-posed problem, and current neural reconstruction methods addressing it through diffusion models still rely on scene-specific optimization, constraining their generalization capability. To…

计算机视觉与模式识别 · 计算机科学 2024-01-09 Christian Simon , Sen He , Juan-Manuel Perez-Rua , Mengmeng Xu , Amine Benhalloum , Tao Xiang

While prior methods in Continuous Spatial-Temporal Video Super-Resolution (C-STVSR) employ Implicit Neural Representation (INR) for continuous encoding, they often struggle to capture the complexity of video data, relying on simple…

计算机视觉与模式识别 · 计算机科学 2025-03-26 Eunjin Kim , Hyeonjin Kim , Kyong Hwan Jin , Jaejun Yoo

In many applications, including surveillance, entertainment, and restoration, there is a need to increase both the spatial resolution and the frame rate of a video sequence. The aim is to improve visual quality, refine details, and create a…

图像与视频处理 · 电气工程与系统科学 2024-07-25 Congrui Fu , Hui Yuan , Liquan Shen , Raouf Hamzaoui , Hao Zhang

Deep learning models for channel estimation in Orthogonal Frequency Division Multiplexing (OFDM) systems often suffer from performance degradation under fast-fading channels and low-SNR scenarios. To address these limitations, we introduce…

机器学习 · 计算机科学 2025-05-15 Berkay Guler , Hamid Jafarkhani

Face videos accompanied by audio have become integral to our daily lives, while they often suffer from complex degradations. Most face video restoration methods neglect the intrinsic correlations between the visual and audio features,…

计算机视觉与模式识别 · 计算机科学 2025-08-07 Yuqin Cao , Yixuan Gao , Wei Sun , Xiaohong Liu , Yulun Zhang , Xiongkuo Min

Video anomaly detection (VAD) remains a challenging task in the pattern recognition community due to the ambiguity and diversity of abnormal events. Existing deep learning-based VAD methods usually leverage proxy tasks to learn the normal…

计算机视觉与模式识别 · 计算机科学 2022-11-03 Mengyang Zhao , Yang Liu , Jing Li , Xinhua Zeng

In this paper, we present a spatio-temporal tendency reasoning (STR) network for recovering human body pose and shape from videos. Previous approaches have focused on how to extend 3D human datasets and temporal-based learning to promote…

计算机视觉与模式识别 · 计算机科学 2022-10-11 Boyang Zhang , SuPing Wu , Hu Cao , Kehua Ma , Pan Li , Lei Lin

Video super-resolution (VSR) seeks to reconstruct high-resolution frames from low-resolution inputs. While diffusion-based methods have substantially improved perceptual quality, extending them to video remains challenging for two reasons:…

计算机视觉与模式识别 · 计算机科学 2026-03-30 Jintong Hu , Bin Chen , Zhenyu Hu , Jiayue Liu , Guo Wang , Lu Qi

Frame quality deterioration is one of the main challenges in the field of video understanding. To compensate for the information loss caused by deteriorated frames, recent approaches exploit transformer-based integration modules to obtain…

计算机视觉与模式识别 · 计算机科学 2024-02-07 Guanxiong Sun , Chi Wang , Zhaoyu Zhang , Jiankang Deng , Stefanos Zafeiriou , Yang Hua

Video Object Segmentation (VOS) has emerged as an increasingly important problem with availability of larger datasets and more complex and realistic settings, which involve long videos with global motion (e.g, in egocentric settings),…

计算机视觉与模式识别 · 计算机科学 2024-04-11 Raghav Goyal , Wan-Cyuan Fan , Mennatullah Siam , Leonid Sigal