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We present a method for assessing skill from video, applicable to a variety of tasks, ranging from surgery to drawing and rolling pizza dough. We formulate the problem as pairwise (who's better?) and overall (who's best?) ranking of video…

Computer Vision and Pattern Recognition · Computer Science 2018-03-30 Hazel Doughty , Dima Damen , Walterio Mayol-Cuevas

We propose a new prototype model for no-reference video quality assessment (VQA) based on the natural statistics of space-time chips of videos. Space-time chips (ST-chips) are a new, quality-aware feature space which we define as space-time…

Image and Video Processing · Electrical Eng. & Systems 2020-08-25 Joshua P. Ebenezer , Zaixi Shang , Yongjun Wu , Hai Wei , Alan C. Bovik

Convolutional neural networks (CNNs) have been extensively applied for image recognition problems giving state-of-the-art results on recognition, detection, segmentation and retrieval. In this work we propose and evaluate several deep…

Computer Vision and Pattern Recognition · Computer Science 2015-04-14 Joe Yue-Hei Ng , Matthew Hausknecht , Sudheendra Vijayanarasimhan , Oriol Vinyals , Rajat Monga , George Toderici

Multimodal ML models can process data in multiple modalities (e.g., video, images, audio, text) and are useful for video content analysis in a variety of problems (e.g., object detection, scene understanding). In this paper, we focus on the…

Computer Vision and Pattern Recognition · Computer Science 2020-06-09 Palash Goyal , Saurabh Sahu , Shalini Ghosh , Chul Lee

Modern video summarization methods are based on deep neural networks that require a large amount of annotated data for training. However, existing datasets for video summarization are small-scale, easily leading to over-fitting of the deep…

Computer Vision and Pattern Recognition · Computer Science 2022-10-20 Li Haopeng , Ke Qiuhong , Gong Mingming , Tom Drummond

Deep learning-based blind super-resolution (SR) methods have recently achieved unprecedented performance in upscaling frames with unknown degradation. These models are able to accurately estimate the unknown downscaling kernel from a given…

Image and Video Processing · Electrical Eng. & Systems 2021-08-20 Lichuan Xiang , Royson Lee , Mohamed S. Abdelfattah , Nicholas D. Lane , Hongkai Wen

Consistent high-quality nursing care is essential for patient safety, yet current nursing education depends on subjective, time-intensive instructor feedback in training future nurses, which limits scalability and efficiency in their…

Artificial Intelligence · Computer Science 2025-09-23 Shen Chang , Dennis Liu , Renran Tian , Kristen L. Swartzell , Stacie L. Klingler , Amy M. Nagle , Nan Kong

Action Quality Assessment(AQA) is important for action understanding and resolving the task poses unique challenges due to subtle visual differences. Existing state-of-the-art methods typically rely on the holistic video representations for…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Yang Bai , Desen Zhou , Songyang Zhang , Jian Wang , Errui Ding , Yu Guan , Yang Long , Jingdong Wang

Retrieval of live, user-broadcast video streams is an under-addressed and increasingly relevant challenge. The on-line nature of the problem requires temporal evaluation and the unforeseeable scope of potential queries motivates an approach…

Information Retrieval · Computer Science 2016-12-21 Spencer Cappallo , Thomas Mensink , Cees G. M. Snoek

The process of rendering high dynamic range (HDR) images to be viewed on conventional displays is called tone mapping. However, tone mapping introduces distortions in the final image which may lead to visual displeasure. To quantify these…

Deep neural networks are often considered opaque systems, prompting the need for explainability methods to improve trust and accountability. Existing approaches typically attribute test-time predictions either to input features (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 Aziz Bacha , Thomas George

We introduce the concept of "dynamic image", a novel compact representation of videos useful for video analysis, particularly in combination with convolutional neural networks (CNNs). A dynamic image encodes temporal data such as RGB or…

Computer Vision and Pattern Recognition · Computer Science 2017-08-22 Hakan Bilen , Basura Fernando , Efstratios Gavves , Andrea Vedaldi

We describe a novel method for training high-quality image denoising models based on unorganized collections of corrupted images. The training does not need access to clean reference images, or explicit pairs of corrupted images, and can…

Machine Learning · Computer Science 2019-10-29 Samuli Laine , Tero Karras , Jaakko Lehtinen , Timo Aila

Recently, with the enormous growth of online videos, fast video retrieval research has received increasing attention. As an extension of image hashing techniques, traditional video hashing methods mainly depend on hand-crafted features and…

Computer Vision and Pattern Recognition · Computer Science 2017-12-04 Yj Dong , JG Li

Surveillance videos often suffer from blur and exposure distortions that occur during acquisition and storage, which can adversely influence following automatic image analysis results on video-analytic tasks. The purpose of this paper is to…

Computer Vision and Pattern Recognition · Computer Science 2018-10-30 Roger Gomez Nieto , Eugenio Tamura Morimitsu

Video quality assessment (VQA) remains an important and challenging problem that affects many applications at the widest scales. Recent advances in mobile devices and cloud computing techniques have made it possible to capture, process, and…

Image and Video Processing · Electrical Eng. & Systems 2022-01-06 Qi Zheng , Zhengzhong Tu , Pavan C. Madhusudana , Xiaoyang Zeng , Alan C. Bovik , Yibo Fan

Depth estimation is an important step in many computer vision problems such as 3D reconstruction, novel view synthesis, and computational photography. Most existing work focuses on depth estimation from single frames. When applied to…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Numair Khan , Eric Penner , Douglas Lanman , Lei Xiao

In this work we address the challenging problem of unsupervised learning from videos. Existing methods utilize the spatio-temporal continuity in contiguous video frames as regularization for the learning process. Typically, this temporal…

Computer Vision and Pattern Recognition · Computer Science 2018-10-12 Carolina Redondo-Cabrera , Roberto J. López-Sastre

Audio-visual generalised zero-shot learning for video classification requires understanding the relations between the audio and visual information in order to be able to recognise samples from novel, previously unseen classes at test time.…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Otniel-Bogdan Mercea , Thomas Hummel , A. Sophia Koepke , Zeynep Akata

VMAF is a machine learning based video quality assessment method, originally designed for streaming applications, which combines multiple quality metrics and video features through SVM regression. It offers higher correlation with…

Image and Video Processing · Electrical Eng. & Systems 2021-09-17 Fan Zhang , Angeliki Katsenou , Christos Bampis , Lukas Krasula , Zhi Li , David Bull