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Face recognition systems have significantly advanced in recent years, driven by the availability of large-scale datasets. However, several issues have recently came up, including privacy concerns that have led to the discontinuation of…

Computer Vision and Pattern Recognition · Computer Science 2023-06-01 Pietro Melzi , Christian Rathgeb , Ruben Tolosana , Ruben Vera-Rodriguez , Dominik Lawatsch , Florian Domin , Maxim Schaubert

Face editing methods, essential for tasks like virtual avatars, digital human synthesis and identity preservation, have traditionally been built upon GAN-based techniques, while recent focus has shifted to diffusion-based models due to…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Mengting Wei , Tuomas Varanka , Yante Li , Xingxun Jiang , Huai-Qian Khor , Guoying Zhao

Diffusion models have recently been shown to generate high-quality synthetic images, especially when paired with a guidance technique to trade off diversity for fidelity. We explore diffusion models for the problem of text-conditional image…

Computer Vision and Pattern Recognition · Computer Science 2022-03-09 Alex Nichol , Prafulla Dhariwal , Aditya Ramesh , Pranav Shyam , Pamela Mishkin , Bob McGrew , Ilya Sutskever , Mark Chen

Synthetic face recognition (SFR) aims to generate synthetic face datasets that mimic the distribution of real face data, which allows for training face recognition models in a privacy-preserving manner. Despite the remarkable potential of…

Computer Vision and Pattern Recognition · Computer Science 2024-10-25 Shen Li , Jianqing Xu , Jiaying Wu , Miao Xiong , Ailin Deng , Jiazhen Ji , Yuge Huang , Wenjie Feng , Shouhong Ding , Bryan Hooi

This paper reports on the development of \textbf{a novel style guided diffusion model (SGDiff)} which overcomes certain weaknesses inherent in existing models for image synthesis. The proposed SGDiff combines image modality with a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Zhengwentai Sun , Yanghong Zhou , Honghong He , P. Y. Mok

Diffusion probabilistic models (DPMs) have become a popular approach to conditional generation, due to their promising results and support for cross-modal synthesis. A key desideratum in conditional synthesis is to achieve high…

Computer Vision and Pattern Recognition · Computer Science 2023-02-17 Ye Zhu , Yu Wu , Kyle Olszewski , Jian Ren , Sergey Tulyakov , Yan Yan

Creating large-scale datasets for training high-performance generative models is often prohibitively expensive, especially when associated attributes or annotations must be provided. As a result, merging existing datasets has become a…

Machine Learning · Statistics 2026-03-31 Yanfeng Yang , Kenji Fukumizu

As one of the most successful generative models, diffusion models have demonstrated remarkable efficacy in synthesizing high-quality images. These models learn the underlying high-dimensional data distribution in an unsupervised manner.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-12 Min Hou , Yueying Wu , Chang Xu , Yu-Hao Huang , Chenxi Bai , Le Wu , Jiang Bian

Denoising diffusion models have gained popularity as a generative modeling technique for producing high-quality and diverse images. Applying these models to downstream tasks requires conditioning, which can take the form of text, class…

Computer Vision and Pattern Recognition · Computer Science 2023-06-06 Alexandros Graikos , Srikar Yellapragada , Dimitris Samaras

Synthetic data is emerging as a substitute for authentic data to solve ethical and legal challenges in handling authentic face data. The current models can create real-looking face images of people who do not exist. However, it is a known…

Computer Vision and Pattern Recognition · Computer Science 2023-11-08 Marco Huber , Anh Thi Luu , Fadi Boutros , Arjan Kuijper , Naser Damer

Conditional image synthesis based on user-specified requirements is a key component in creating complex visual content. In recent years, diffusion-based generative modeling has become a highly effective way for conditional image synthesis,…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Zheyuan Zhan , Defang Chen , Jian-Ping Mei , Zhenghe Zhao , Jiawei Chen , Chun Chen , Siwei Lyu , Can Wang

Facial attribute classification relies on large-scale annotated datasets in which many traits, such as age and expression, are inherently ambiguous and continuous but are discretized into categorical labels. Annotation inconsistencies arise…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Basudha Pal , Rama Chellappa

Recent progress with conditional image diffusion models has been stunning, and this holds true whether we are speaking about models conditioned on a text description, a scene layout, or a sketch. Unconditional image diffusion models are…

Computer Vision and Pattern Recognition · Computer Science 2023-06-22 William Harvey , Frank Wood

Diffusion models have recently shown strong progress in generative tasks, offering a more stable alternative to GAN-based approaches for makeup transfer. Existing methods often suffer from limited datasets, poor disentanglement between…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Qihe Pan , Yiming Wu , Xing Zhao , Liang Xie , Guodao Sun , Ronghua Liang

Controllable image synthesis models allow creation of diverse images based on text instructions or guidance from a reference image. Recently, denoising diffusion probabilistic models have been shown to generate more realistic imagery than…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Xihui Liu , Dong Huk Park , Samaneh Azadi , Gong Zhang , Arman Chopikyan , Yuxiao Hu , Humphrey Shi , Anna Rohrbach , Trevor Darrell

As Classifier-Free Guidance (CFG) has proven effective in conditional diffusion model sampling for improved condition alignment, many applications use a negated CFG term to filter out unwanted features from samples. However, simply negating…

Machine Learning · Computer Science 2024-11-27 Jinho Chang , Hyungjin Chung , Jong Chul Ye

In human-centric content generation, the pre-trained text-to-image models struggle to produce user-wanted portrait images, which retain the identity of individuals while exhibiting diverse expressions. This paper introduces our efforts…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Renshuai Liu , Bowen Ma , Wei Zhang , Zhipeng Hu , Changjie Fan , Tangjie Lv , Yu Ding , Xuan Cheng

Exploiting pre-trained diffusion models for restoration has recently become a favored alternative to the traditional task-specific training approach. Previous works have achieved noteworthy success by limiting the solution space using…

Computer Vision and Pattern Recognition · Computer Science 2023-09-20 Peiqing Yang , Shangchen Zhou , Qingyi Tao , Chen Change Loy

Suspect face generation remains a technical challenge in crime investigations. Traditional sketch-drawing workflows suffer from low efficiency and quality, while diffusion-based approaches still face intrinsic limitations on conditional…

Computer Vision and Pattern Recognition · Computer Science 2026-05-04 Weichen Liu , Yixin Yang , Changsheng Chen , Alex Kot

Recent progress in image generation has sparked research into controlling these models through condition signals, with various methods addressing specific challenges in conditional generation. Instead of proposing another specialized…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Xirui Li , Charles Herrmann , Kelvin C. K. Chan , Yinxiao Li , Deqing Sun , Chao Ma , Ming-Hsuan Yang