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Instead of performing text-conditioned denoising in the image domain, latent diffusion models (LDMs) operate in latent space of a variational autoencoder (VAE), enabling more efficient processing at reduced computational costs. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Jason Becker , Chris Wendler , Peter Baylies , Robert West , Christian Wressnegger

We present a novel quality assessment method which can predict the perceptual quality of point clouds from new scenes without available annotations by leveraging the rich prior knowledge in images, called the Distribution-Weighted…

Computer Vision and Pattern Recognition · Computer Science 2025-01-24 Yipeng Liu , Qi Yang , Yujie Zhang , Yiling Xu , Le Yang , Zhu Li

Millions of cameras at edge are being deployed to power a variety of different deep learning applications. However, the frames captured by these cameras are not always pristine - they can be distorted due to lighting issues, sensor noise,…

Image and Video Processing · Electrical Eng. & Systems 2021-10-27 Sibendu Paul , Utsav Drolia , Y. Charlie Hu , Srimat T. Chakradhar

The video quality assessment (VQA) technology has attracted a lot of attention in recent years due to an increasing demand of video streaming services. Existing VQA methods are designed to predict video quality in terms of the mean opinion…

Multimedia · Computer Science 2018-07-31 Haiqiang Wang , Ioannis Katsavounidis , Xinfeng Zhang , Chao Yang , C. -C. Jay Kuo

Short-form video poses new challenges to the quality assessment of user-generated content (UGC) due to its complex generation pipeline, rapid content variation, and mixed distortions. To address this challenge, we propose an end-to-end…

Image and Video Processing · Electrical Eng. & Systems 2026-05-20 Xinyi Wang , Angeliki Katsenou , Junxiao Shen , David Bull

We present Stable Video Diffusion - a latent video diffusion model for high-resolution, state-of-the-art text-to-video and image-to-video generation. Recently, latent diffusion models trained for 2D image synthesis have been turned into…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Andreas Blattmann , Tim Dockhorn , Sumith Kulal , Daniel Mendelevitch , Maciej Kilian , Dominik Lorenz , Yam Levi , Zion English , Vikram Voleti , Adam Letts , Varun Jampani , Robin Rombach

Traditional image quality assessment (IQA) methods rely on mean opinion scores (MOS), which are resource-intensive to collect and fail to provide interpretable, localized feedback on specific image distortions. We overcome these limitations…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Fadeel Sher Khan , Long N. Le , Abhinau K. Venkataramanan , Seok-Jun Lee , Hamid R. Sheikh

The Diffusion models, widely used for image generation, face significant challenges related to their broad applicability due to prolonged inference times and high memory demands. Efficient Post-Training Quantization (PTQ) is crucial to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Yushi Huang , Ruihao Gong , Xianglong Liu , Jing Liu , Yuhang Li , Jiwen Lu , Dacheng Tao

Video quality assessment (VQA) is a fundamental computer vision task that aims to predict the perceptual quality of a given video in alignment with human judgments. Existing performant VQA models trained with direct score supervision suffer…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Shuo Xing , Soumik Dey , Mingyang Wu , Ashirbad Mishra , Naveen Ravipati , Binbin Li , Hansi Wu , Zhengzhong Tu

Video Question Answering (VideoQA) models enhance understanding and interaction with audiovisual content, making it more accessible, searchable, and useful for a wide range of fields such as education, surveillance, entertainment, and…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Himanshu Patil , Geo Jolly , Ramana Raja Buddala , Ganesh Ramakrishnan , Rohit Saluja

The advancement of text-to-image synthesis has introduced powerful generative models capable of creating realistic images from textual prompts. However, precise control over image attributes remains challenging, especially at the instance…

Computer Vision and Pattern Recognition · Computer Science 2025-01-27 Andrey Palaev , Adil Khan , Syed M. Ahsan Kazmi

With the rapid growth of Internet video data amounts and types, a unified Video Quality Assessment (VQA) is needed to inspire video communication with perceptual quality. To meet the real-time and universal requirements in providing such…

Multimedia · Computer Science 2023-03-27 Xinhui Huang , Chunyi Li , Abdelhak Bentaleb , Roger Zimmermann , Guangtao Zhai

Text-to-image (T2I) diffusion models lack an efficient mechanism for early quality assessment, leading to costly trial-and-error in multi-generation scenarios such as prompt iteration, agent-based generation, and flow-grpo. We reveal a…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Benlei Cui , Bukun Huang , Zhizeng Ye , Xuemei Dong , Tuo Chen , Hui Xue , Dingkang Yang , Longtao Huang , Jingqun Tang , Haiwen Hong

In this paper, a novel and effective image quality assessment (IQA) algorithm based on frequency disparity for high dynamic range (HDR) images is proposed, termed as local-global frequency feature-based model (LGFM). Motivated by the…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Yue Liu , Zhangkai Ni , Shiqi Wang , Hanli Wang , Sam Kwong

The video generation field has witnessed rapid improvements with the introduction of recent diffusion models. While these models have successfully enhanced appearance quality, they still face challenges in generating coherent and natural…

Computer Vision and Pattern Recognition · Computer Science 2025-04-21 Yaosi Hu , Zhenzhong Chen , Chong Luo

Vision-and-language (V&L) models pretrained on large-scale multimodal data have demonstrated strong performance on various tasks such as image captioning and visual question answering (VQA). The quality of such models is commonly assessed…

Computation and Language · Computer Science 2023-04-04 Aishwarya Agrawal , Ivana Kajić , Emanuele Bugliarello , Elnaz Davoodi , Anita Gergely , Phil Blunsom , Aida Nematzadeh

Image quality assessment is a fundamental problem in the field of image processing, and due to the lack of reference images in most practical scenarios, no-reference image quality assessment (NR-IQA), has gained increasing attention…

Computer Vision and Pattern Recognition · Computer Science 2023-05-17 Jinsong Shi , Pan Gao , Aljosa Smolic

Due to storage and bandwidth limitations, videos transmitted over the Internet often exhibit low quality, characterized by low-resolution and compression artifacts. Although video super-resolution (VSR) is an efficient video enhancing…

Computer Vision and Pattern Recognition · Computer Science 2025-06-30 Hongyu An , Xinfeng Zhang , Shijie Zhao , Li Zhang , Ruiqin Xiong

Blind video quality assessment (BVQA) plays a pivotal role in evaluating and improving the viewing experience of end-users across a wide range of video-based platforms and services. Contemporary deep learning-based models primarily analyze…

Image and Video Processing · Electrical Eng. & Systems 2024-04-02 Wen Wen , Mu Li , Yabin Zhang , Yiting Liao , Junlin Li , Li Zhang , Kede Ma

Image quality assessment (IQA) is very important for both end-users and service providers since a high-quality image can significantly improve the user's quality of experience (QoE) and also benefit lots of computer vision algorithms. Most…

Multimedia · Computer Science 2023-04-28 Wei Sun , Xiongkuo Min , Danyang Tu , Guangtao Zhai , Siwei Ma