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Self-supervised representation learning has gained increasing attention for strong generalization ability without relying on paired datasets. However, it has not been explored sufficiently for facial representation. Self-supervised facial…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Ruian He , Zhen Xing , Weimin Tan , Bo Yan

Blind face restoration (BFR) is a highly challenging problem due to the uncertainty of data degradation patterns. Current BFR methods have realized certain restored productions but with inherent neural degradations that limit real-world…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Nan Gao , Jia Li , Huaibo Huang , Ke Shang , Ran He

Blind Face Restoration aims to recover high-fidelity, detail-rich facial images from unknown degraded inputs, presenting significant challenges in preserving both identity and detail. Pre-trained diffusion models have been increasingly used…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Huu-Phu Do , Yu-Wei Chen , Yi-Cheng Liao , Chi-Wei Hsiao , Han-Yang Wang , Wei-Chen Chiu , Ching-Chun Huang

Aiming to enhance Face Recognition (FR) on Low-Quality (LQ) inputs, recent studies suggest incorporating synthetic LQ samples into training. Although promising, the quality factors that are considered in these works are general rather than…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Mohammad Saeed Ebrahimi Saadabadi , Sahar Rahimi Malakshan , Ali Dabouei , Nasser M. Nasrabadi

Latent Diffusion Models (LDMs) produce high-quality, photo-realistic images, however, the latency incurred by multiple costly inference iterations can restrict their applicability. We introduce LatentCRF, a continuous Conditional Random…

Computer Vision and Pattern Recognition · Computer Science 2024-12-25 Kanchana Ranasinghe , Sadeep Jayasumana , Andreas Veit , Ayan Chakrabarti , Daniel Glasner , Michael S Ryoo , Srikumar Ramalingam , Sanjiv Kumar

Blind face restoration aims to recover high-quality facial images from various unidentified sources of degradation, posing significant challenges due to the minimal information retrievable from the degraded images. Prior knowledge-based…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Wanglong Lu , Jikai Wang , Tao Wang , Kaihao Zhang , Xianta Jiang , Hanli Zhao

Recognizing degraded faces from low resolution and blurred images are common yet challenging task. Local Frequency Descriptor (LFD) has been proved to be effective for this task yet it is extracted from a spatial neighborhood of a pixel of…

Computer Vision and Pattern Recognition · Computer Science 2012-10-04 Guangling Sun , Guoqing Li , Xinpeng Zhang

This paper explores the problem of reconstructing high-resolution light field (LF) images from hybrid lenses, including a high-resolution camera surrounded by multiple low-resolution cameras. The performance of existing methods is still…

Image and Video Processing · Electrical Eng. & Systems 2023-06-21 Jing Jin , Mantang Guo , Junhui Hou , Hui Liu , Hongkai Xiong

Face recognition systems experience severe performance degradation when processing low-quality forensic evidence imagery. This paper presents an evaluation of latent diffusion-based enhancement for improving face recognition under…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Hassan Ugail , Hamad Mansour Alawar , AbdulNasser Abbas Zehi , Ahmed Mohammad Alkendi , Ismail Lujain Jaleel

The performance of Latent Diffusion Models (LDMs) is critically dependent on the quality of their visual tokenizers. While recent works have explored incorporating Vision Foundation Models (VFMs) into the tokenizers training via…

Computer Vision and Pattern Recognition · Computer Science 2026-04-24 Tianci Bi , Xiaoyi Zhang , Yan Lu , Nanning Zheng

Modern Latent Diffusion Models (LDMs) typically operate in low-level Variational Autoencoder (VAE) latent spaces that are primarily optimized for pixel-level reconstruction. To unify vision generation and understanding, a burgeoning trend…

Computer Vision and Pattern Recognition · Computer Science 2025-12-22 Shilong Zhang , He Zhang , Zhifei Zhang , Chongjian Ge , Shuchen Xue , Shaoteng Liu , Mengwei Ren , Soo Ye Kim , Yuqian Zhou , Qing Liu , Daniil Pakhomov , Kai Zhang , Zhe Lin , Ping Luo

Ultra-Wide-Field Fluorescein Angiography (UWF-FA) enables precise identification of ocular diseases using sodium fluorescein, which can be potentially harmful. Existing research has developed methods to generate UWF-FA from Ultra-Wide-Field…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Zhaojie Fang , Xiao Yu , Guanyu Zhou , Ke Zhuang , Yifei Chen , Ruiquan Ge , Changmiao Wang , Gangyong Jia , Qing Wu , Juan Ye , Maimaiti Nuliqiman , Peifang Xu , Ahmed Elazab

As a class of fruitful approaches, diffusion probabilistic models (DPMs) have shown excellent advantages in high-resolution image reconstruction. On the other hand, masked autoencoders (MAEs), as popular self-supervised vision learners,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Zhiyuan Ma , zhihuan yu , Jianjun Li , Bowen Zhou

Facial Appearance Editing (FAE) aims to modify physical attributes, such as pose, expression and lighting, of human facial images while preserving attributes like identity and background, showing great importance in photograph. In spite of…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Qilin Wang , Jiangning Zhang , Chengming Xu , Weijian Cao , Ying Tai , Yue Han , Yanhao Ge , Hong Gu , Chengjie Wang , Yanwei Fu

This paper explores the problem of reconstructing high-resolution light field (LF) images from hybrid lenses, including a high-resolution camera surrounded by multiple low-resolution cameras. To tackle this challenge, we propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2020-08-04 Jing Jin , Junhui Hou , Jie Chen , Sam Kwong , Jingyi Yu

The use of latent diffusion models (LDMs) such as Stable Diffusion has significantly improved the perceptual quality of All-in-One image Restoration (AiOR) methods, while also enhancing their generalization capabilities. However, these…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Sudarshan Rajagopalan , Kartik Narayan , Vishal M. Patel

Blind face restoration is a highly ill-posed problem that often requires auxiliary guidance to 1) improve the mapping from degraded inputs to desired outputs, or 2) complement high-quality details lost in the inputs. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2022-11-02 Shangchen Zhou , Kelvin C. K. Chan , Chongyi Li , Chen Change Loy

Image super-resolution pursuits reconstructing high-fidelity high-resolution counterpart for low-resolution image. In recent years, diffusion-based models have garnered significant attention due to their capabilities with rich prior…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Aiwen Jiang , Zhi Wei , Long Peng , Feiqiang Liu , Wenbo Li , Mingwen Wang

Blind image restoration remains a significant challenge in low-level vision tasks. Recently, denoising diffusion models have shown remarkable performance in image synthesis. Guided diffusion models, leveraging the potent generative priors…

Computer Vision and Pattern Recognition · Computer Science 2024-11-20 Jun Xiao , Zihang Lyu , Hao Xie , Cong Zhang , Yakun Ju , Changjian Shui , Kin-Man Lam

Blind face restoration is a challenging task due to the unknown and complex degradation. Although face prior-based methods and reference-based methods have recently demonstrated high-quality results, the restored images tend to contain…

Computer Vision and Pattern Recognition · Computer Science 2024-03-01 Guojing Ge , Qi Song , Guibo Zhu , Yuting Zhang , Jinglu Chen , Miao Xin , Ming Tang , Jinqiao Wang