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Diffusion models have demonstrated impressive performance in various image generation, editing, enhancement and translation tasks. In particular, the pre-trained text-to-image stable diffusion models provide a potential solution to the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Tao Yang , Rongyuan Wu , Peiran Ren , Xuansong Xie , Lei Zhang

Diffusion models have achieved remarkable success in conditional image generation, yet their outputs often remain misaligned with human preferences. To address this, recent work has applied Direct Preference Optimization (DPO) to diffusion…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Shaomeng Wang , He Wang , Xiaolu Wei , Longquan Dai , Jinhui Tang

Recent studies have demonstrated the effectiveness of directly aligning diffusion models with human preferences using differentiable reward. However, they exhibit two primary challenges: (1) they rely on multistep denoising with gradient…

Artificial Intelligence · Computer Science 2025-09-12 Xiangwei Shen , Zhimin Li , Zhantao Yang , Shiyi Zhang , Yingfang Zhang , Donghao Li , Chunyu Wang , Qinglin Lu , Yansong Tang

Diffusion models achieved unprecedented fidelity and diversity for synthesizing image, video, 3D assets, etc. However, subject mixing is an unresolved issue for diffusion-based image synthesis, particularly for synthesizing multiple…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Weimin Qiu , Jieke Wang , Meng Tang

This paper explores advancements in high-fidelity personalized image generation through the utilization of pre-trained text-to-image diffusion models. While previous approaches have made significant strides in generating versatile scenes…

Computer Vision and Pattern Recognition · Computer Science 2023-12-04 Zhonghao Wang , Wei Wei , Yang Zhao , Zhisheng Xiao , Mark Hasegawa-Johnson , Humphrey Shi , Tingbo Hou

Text-to-image generative models have attracted rising attention for flexible image editing via user-specified descriptions. However, text descriptions alone are not enough to elaborate the details of subjects, often compromising the…

Computer Vision and Pattern Recognition · Computer Science 2023-06-14 Xin Zhang , Jiaxian Guo , Paul Yoo , Yutaka Matsuo , Yusuke Iwasawa

Preference learning has garnered extensive attention as an effective technique for aligning diffusion models with human preferences in visual generation. However, existing alignment approaches such as Diffusion-DPO suffer from two…

Machine Learning · Computer Science 2026-05-19 Xiaomeng Yang , Mengping Yang , Junyan Wang , Zhijian Zhou , Zhiyu Tan , Hao Li

In recent years, the field of image generation has witnessed significant advancements, particularly in fine-tuning methods that align models with universal human preferences. This paper explores the critical role of preference data in the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Lingfan Zhang , Chen Liu , Chengming Xu , Kai Hu , Donghao Luo , Chengjie Wang , Yanwei Fu , Yuan Yao

Human preference alignment presents a critical yet underexplored challenge for diffusion models in text-to-3D generation. Existing solutions typically require task-specific fine-tuning, posing significant hurdles in data-scarce 3D domains.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Jiaqi Leng , Shuyuan Tu , Haidong Cao , Sicheng Xie , Daoguo Dong , Zuxuan Wu , Yu-Gang Jiang

Diffusion models have achieved remarkable success in generating realistic and versatile images from text prompts. Inspired by the recent advancements of language models, there is an increasing interest in further improving the models by…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Binxu Li , Minkai Xu , Jiaqi Han , Meihua Dang , Stefano Ermon

Direct Preference Optimization (DPO) has recently been applied as a post-training technique for text-to-video diffusion models. To obtain training data, annotators are asked to provide preferences between two videos generated from…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 Ziyi Wu , Anil Kag , Ivan Skorokhodov , Willi Menapace , Ashkan Mirzaei , Igor Gilitschenski , Sergey Tulyakov , Aliaksandr Siarohin

Background: Text-to-image generation models are widely used across numerous domains. Among these models, Stable Diffusion (SD) - an open-source text-to-image generation model - has become the most popular, producing over 12 billion images…

Software Engineering · Computer Science 2025-12-08 Giordano d'Aloisio , Tosin Fadahunsi , Jay Choy , Rebecca Moussa , Federica Sarro

Recent advances in text-to-image diffusion models have substantially improved the quality of image customization, enabling the synthesis of highly realistic images. Despite this progress, achieving fast and efficient personalization remains…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Aniket Roy , Maitreya Suin , Rama Chellappa

Recent advancements in diffusion models have notably improved the perceptual quality of generated images in text-to-image synthesis tasks. However, diffusion models often struggle to produce images that accurately reflect the intended…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Yang Zhang , Teoh Tze Tzun , Lim Wei Hern , Tiviatis Sim , Kenji Kawaguchi

Diffusion models (DMs) have become the new trend of generative models and have demonstrated a powerful ability of conditional synthesis. Among those, text-to-image diffusion models pre-trained on large-scale image-text pairs are highly…

Computer Vision and Pattern Recognition · Computer Science 2023-03-06 Wenliang Zhao , Yongming Rao , Zuyan Liu , Benlin Liu , Jie Zhou , Jiwen Lu

We introduce precise object silhouette as a new form of user control in text-to-image diffusion models, which we dub Shape-Guided Diffusion. Our training-free method uses an Inside-Outside Attention mechanism during the inversion and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Dong Huk Park , Grace Luo , Clayton Toste , Samaneh Azadi , Xihui Liu , Maka Karalashvili , Anna Rohrbach , Trevor Darrell

Direct preference optimization (DPO) has shown success in aligning diffusion models with human preference. Previous approaches typically assume a consistent preference label between final generations and noisy samples at intermediate steps,…

Machine Learning · Computer Science 2025-02-05 Jie Ren , Yuhang Zhang , Dongrui Liu , Xiaopeng Zhang , Qi Tian

We present a simple but effective training-free approach for text-driven image-to-image translation based on a pretrained text-to-image diffusion model. Our goal is to generate an image that aligns with the target task while preserving the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Hyunsoo Lee , Minsoo Kang , Bohyung Han

Direct Preference Optimization (DPO) has emerged as a powerful approach to align text-to-image (T2I) models with human feedback. Unfortunately, successful application of DPO to T2I models requires a huge amount of resources to collect and…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Shyamgopal Karthik , Huseyin Coskun , Zeynep Akata , Sergey Tulyakov , Jian Ren , Anil Kag

Despite recent advances in large-scale text-to-image generative models, manipulating real images with these models remains a challenging problem. The main limitations of existing editing methods are that they either fail to perform with…

Computer Vision and Pattern Recognition · Computer Science 2024-09-26 Vadim Titov , Madina Khalmatova , Alexandra Ivanova , Dmitry Vetrov , Aibek Alanov