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3D Convolutional Neural Network (3D CNN) captures spatial and temporal information on 3D data such as video sequences. However, due to the convolution and pooling mechanism, the information loss seems unavoidable. To improve the visual…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Novanto Yudistira , Muthu Subash Kavitha , Takio Kurita

Recent advancements in deep neural networks for graph-structured data have led to state-of-the-art performance on recommender system benchmarks. In this work, we present a Graph Convolutional Network (GCN) algorithm SWAG (Sample Weight and…

Information Retrieval · Computer Science 2020-08-24 Amit Pande , Kai Ni , Venkataramani Kini

Deepfake detection has become increasingly important due to the rise of synthetic media, which poses significant risks to digital identity and cyber presence for security and trust. While multiple approaches have improved detection…

Computer Vision and Pattern Recognition · Computer Science 2025-05-02 Muhammad Salman , Iqra Tariq , Mishal Zulfiqar , Muqadas Jalal , Sami Aujla , Sumbal Fatima

Quality of experience (QoE) assessment for adaptive video streaming plays a significant role in advanced network management systems. It is especially challenging in case of dynamic adaptive streaming schemes over HTTP (DASH) which has…

Multimedia · Computer Science 2022-03-01 Wei Zhou , Xiongkuo Min , Hong Li , Qiuping Jiang

The rapid advancement of large multimodal models (LMMs) has led to the rapid expansion of artificial intelligence generated videos (AIGVs), which highlights the pressing need for effective video quality assessment (VQA) models designed…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Jiarui Wang , Huiyu Duan , Guangtao Zhai , Juntong Wang , Xiongkuo Min

We address the problem of data augmentation for video action recognition. Standard augmentation strategies in video are hand-designed and sample the space of possible augmented data points either at random, without knowing which augmented…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Shreyank N Gowda , Marcus Rohrbach , Frank Keller , Laura Sevilla-Lara

Video-based person re-identification (ReID) is challenging due to the presence of various interferences in video frames. Recent approaches handle this problem using temporal aggregation strategies. In this work, we propose a novel Context…

Computer Vision and Pattern Recognition · Computer Science 2022-07-07 Kan Wang , Changxing Ding , Jianxin Pang , Xiangmin Xu

The quality of the video stream is key to neural network-based video analytics. However, low-quality video is inevitably collected by existing surveillance systems because of poor quality cameras or over-compressed/pruned video streaming…

Computer Vision and Pattern Recognition · Computer Science 2023-01-25 Tingting Yuan , Liang Mi , Weijun Wang , Haipeng Dai , Xiaoming Fu

Video Quality Assessment (VQA), which aims to predict the perceptual quality of a video, has attracted raising attention with the rapid development of streaming media technology, such as Facebook, TikTok, Kwai, and so on. Compared with…

Computer Vision and Pattern Recognition · Computer Science 2023-08-01 Kun Yuan , Zishang Kong , Chuanchuan Zheng , Ming Sun , Xing Wen

Long-term Action Quality Assessment (AQA) aims to evaluate the quantitative performance of actions in long videos. However, existing methods face challenges due to domain shifts between the pre-trained large-scale action recognition…

Computer Vision and Pattern Recognition · Computer Science 2025-10-09 Kanglei Zhou , Hubert P. H. Shum , Frederick W. B. Li , Xingxing Zhang , Xiaohui Liang

Action Quality Assessment (AQA) aims to score how well an action is performed and is widely used in sports analysis, rehabilitation assessment, and human skill evaluation. Multi-modal AQA has recently achieved strong progress by leveraging…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Kanglei Zhou , Chang Li , Qingyi Pan , Liyuan Wang

Action recognition has become a hot topic in computer vision. However, the main applications of computer vision in video processing have focused on detection of relatively simple actions while complex events such as violence detection have…

Computer Vision and Pattern Recognition · Computer Science 2024-08-28 Dursun Dashdamirov

Recent advances in content generation technologies (widely known as DeepFakes) along with the online proliferation of manipulated media content render the detection of such manipulations a task of increasing importance. Even though there…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Polychronis Charitidis , Giorgos Kordopatis-Zilos , Symeon Papadopoulos , Ioannis Kompatsiaris

Image quality assessment (IQA) algorithm aims to quantify the human perception of image quality. Unfortunately, there is a performance drop when assessing the distortion images generated by generative adversarial network (GAN) with…

Computer Vision and Pattern Recognition · Computer Science 2022-04-25 Shanshan Lao , Yuan Gong , Shuwei Shi , Sidi Yang , Tianhe Wu , Jiahao Wang , Weihao Xia , Yujiu Yang

We propose the LEHA-CVQAD (Large-scale Enriched Human-Annotated Compressed Video Quality Assessment) dataset, which comprises 6,240 clips for compression-oriented video quality assessment. 59 source videos are encoded with 186 codec-preset…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Aleksandr Gushchin , Maksim Smirnov , Dmitriy Vatolin , Anastasia Antsiferova

Image quality assessment (IQA) aims to assess the perceptual quality of images. The outputs of the IQA algorithms are expected to be consistent with human subjective perception. In image restoration and enhancement tasks, images generated…

Computer Vision and Pattern Recognition · Computer Science 2021-04-26 Shuwei Shi , Qingyan Bai , Mingdeng Cao , Weihao Xia , Jiahao Wang , Yifan Chen , Yujiu Yang

Deep Video Quality Assessment (VQA) methods have shown impressive high-performance capabilities. Notably, no-reference (NR) VQA methods play a vital role in situations where obtaining reference videos is restricted or not feasible.…

Image and Video Processing · Electrical Eng. & Systems 2024-07-31 Xiaoheng Tan , Jiabin Zhang , Yuhui Quan , Jing Li , Yajing Wu , Zilin Bian

Scene flow estimation, which predicts the 3D motion of scene points from point clouds, is a core task in autonomous driving and many other 3D vision applications. Existing methods either suffer from structure distortion due to ignorance of…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Yun Wang , Cheng Chi , Xin Yang

The performance of many medical image analysis tasks are strongly associated with image data quality. When developing modern deep learning algorithms, rather than relying on subjective (human-based) image quality assessment (IQA), task…

Abnormal activity detection is one of the most challenging tasks in the field of computer vision. This study is motivated by the recent state-of-art work of abnormal activity detection, which utilizes both abnormal and normal videos in…

Computer Vision and Pattern Recognition · Computer Science 2020-02-05 Shikha Dubey , Abhijeet Boragule , Moongu Jeon