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Recent advancements in video generation have been remarkable, yet many existing methods struggle with issues of consistency and poor text-video alignment. Moreover, the field lacks effective techniques for text-guided video inpainting, a…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Bojia Zi , Shihao Zhao , Xianbiao Qi , Jianan Wang , Yukai Shi , Qianyu Chen , Bin Liang , Kam-Fai Wong , Lei Zhang

This study proposes a practical approach for compressing 360-degree equirectangular videos using pretrained neural video compression (NVC) models. Without requiring additional training or changes in the model architectures, the proposed…

Image and Video Processing · Electrical Eng. & Systems 2025-12-24 Daichi Arai , Yuichi Kondo , Kyohei Unno , Yasuko Sugito , Yuichi Kusakabe

Practical quantum key distribution (QKD) protocols require a finite-size security proof. The phase error correction (PEC) approach is one of the general strategies for security analyses that has successfully proved finite-size security for…

Quantum Physics · Physics 2026-05-15 Takaya Matsuura , Shinichiro Yamano , Yui Kuramochi , Toshihiko Sasaki , Masato Koashi

In the learning based video compression approaches, it is an essential issue to compress pixel-level optical flow maps by developing new motion vector (MV) encoders. In this work, we propose a new framework called Resolution-adaptive Flow…

Computer Vision and Pattern Recognition · Computer Science 2020-09-15 Zhihao Hu , Zhenghao Chen , Dong Xu , Guo Lu , Wanli Ouyang , Shuhang Gu

Neural-based image and video codecs are significantly more power-efficient when weights and activations are quantized to low-precision integers. While there are general-purpose techniques for reducing quantization effects, large losses can…

Image and Video Processing · Electrical Eng. & Systems 2023-01-26 Amir Said , Reza Pourreza , Hoang Le

The pursuit of controllability as a higher standard of visual content creation has yielded remarkable progress in customizable image synthesis. However, achieving controllable video synthesis remains challenging due to the large variation…

Computer Vision and Pattern Recognition · Computer Science 2023-06-07 Xiang Wang , Hangjie Yuan , Shiwei Zhang , Dayou Chen , Jiuniu Wang , Yingya Zhang , Yujun Shen , Deli Zhao , Jingren Zhou

Research on video frame interpolation has made significant progress in recent years. However, existing methods mostly use off-the-shelf metrics to measure the quality of interpolation results with the exception of a few methods that employ…

Computer Vision and Pattern Recognition · Computer Science 2022-10-06 Qiqi Hou , Abhijay Ghildyal , Feng Liu

In recent years, with the vigorous development of the video game industry, the proportion of gaming videos on major video websites like YouTube has dramatically increased. However, relatively little research has been done on the automatic…

Image and Video Processing · Electrical Eng. & Systems 2022-04-15 Xiangxu Yu , Zhengzhong Tu , Neil Birkbeck , Yilin Wang , Balu Adsumilli , Alan C. Bovik

Video compression aims to reconstruct seamless frames by encoding the motion and residual information from existing frames. Previous neural video compression methods necessitate distinct codecs for three types of frames (I-frame, P-frame…

Image and Video Processing · Electrical Eng. & Systems 2024-06-04 Meiqin Liu , Chenming Xu , Yukai Gu , Chao Yao , Yao Zhao

Proper quality control (QC) is time consuming when working with large-scale medical imaging datasets, yet necessary, as poor-quality data can lead to erroneous conclusions or poorly trained machine learning models. Most efforts to reduce…

Point cloud is one of the most widely used digital representation formats for three-dimensional (3D) contents, the visual quality of which may suffer from noise and geometric shift distortions during the production procedure as well as…

Computer Vision and Pattern Recognition · Computer Science 2023-12-07 Zicheng Zhang , Wei Sun , Yucheng Zhu , Xiongkuo Min , Wei Wu , Ying Chen , Guangtao Zhai

As applications using immersive media gained increased attention from both academia and industry, research in the field of point cloud compression has greatly intensified in recent years, leading to the development of the MPEG compression…

Image and Video Processing · Electrical Eng. & Systems 2024-11-01 Davi Lazzarotto , Michela Testolina , Touradj Ebrahimi

Traditional photography composition approaches are dominated by 2D cropping-based methods. However, these methods fall short when scenes contain poorly arranged subjects. Professional photographers often employ perspective adjustment as a…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Lujian Yao , Siming Zheng , Xinbin Yuan , Zhuoxuan Cai , Pu Wu , Jinwei Chen , Bo Li , Peng-Tao Jiang

Parameterized quantum circuits (PQCs) are ubiquitous in the design of hybrid quantum-classical algorithms. In this work, we propose an interpolation-based coordinate descent (ICD) method to address the parameter optimization problem in…

Quantum Physics · Physics 2026-01-14 Zhijian Lai , Jiang Hu , Taehee Ko , Jiayuan Wu , Dong An

Recent advancements in deep learning techniques have significantly improved the quality of compressed videos. However, previous approaches have not fully exploited the motion characteristics of compressed videos, such as the drastic change…

Image and Video Processing · Electrical Eng. & Systems 2023-02-28 Thong Bach , Thuong Nguyen Canh , Van-Quang Nguyen

Video quality assessment (VQA) seeks to predict the perceptual quality of a video in alignment with human visual perception, serving as a fundamental tool for quantifying quality degradation across video processing workflows. The dominant…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Linhan Cao , Wei Sun , Xiangyang Zhu , Kaiwei Zhang , Jun Jia , Yicong Peng , Dandan Zhu , Guangtao Zhai , Xiongkuo Min

Video streaming usage has seen a significant rise as entertainment, education, and business increasingly rely on online video. Optimizing video compression has the potential to increase access and quality of content to users, and reduce…

We propose a perceptual video quality assessment (PVQA) metric for distorted videos by analyzing the power spectral density (PSD) of a group of pictures. This is an estimation approach that relies on the changes in video dynamic calculated…

Computer Vision and Pattern Recognition · Computer Science 2018-12-14 Mohammed A. Aabed , Gukyeong Kwon , Ghassan AlRegib

Videos captured by consumer cameras often exhibit temporal variations in color and tone that are caused by camera auto-adjustments like white-balance and exposure. When such videos are sub-sampled to play fast-forward, as in the…

Graphics · Computer Science 2017-10-02 Xuaner Cecilia Zhang , Joon-Young Lee , Kalyan Sunkavalli , Zhaowen Wang

Video shared over the internet is commonly referred to as user generated content (UGC). UGC video may have low quality due to various factors including previous compression. UGC video is uploaded by users, and then it is re-encoded to be…

Image and Video Processing · Electrical Eng. & Systems 2022-07-19 Eduardo Pavez , Enrique Perez , Xin Xiong , Antonio Ortega , Balu Adsumilli