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Personalized diffusion models have shown remarkable success in Text-to-Image (T2I) generation by enabling the injection of user-defined concepts into diverse contexts. However, balancing concept fidelity with contextual alignment remains a…

计算机视觉与模式识别 · 计算机科学 2025-05-28 Shamil Ayupov , Maksim Nakhodnov , Anastasia Yaschenko , Andrey Kuznetsov , Aibek Alanov

Human image generation is a key focus in image synthesis due to its broad applications, but even slight inaccuracies in anatomy, pose, or details can compromise realism. To address these challenges, we explore Direct Preference Optimization…

计算机视觉与模式识别 · 计算机科学 2025-04-10 Sanghyeon Na , Yonggyu Kim , Hyunjoon Lee

With the rapid development of AIGC technology, significant progress has been made in diffusion model-based technologies for text-to-image (T2I) and text-to-video (T2V). In recent years, a few studies have introduced the strategy of Direct…

计算机视觉与模式识别 · 计算机科学 2025-02-05 Lifan Jiang , Boxi Wu , Jiahui Zhang , Xiaotong Guan , Shuang Chen

Aligning text-to-image (T2I) diffusion models with Direct Preference Optimization (DPO) has shown notable improvements in generation quality. However, applying DPO to T2I faces two challenges: the sensitivity of DPO to preference pairs and…

计算机视觉与模式识别 · 计算机科学 2025-05-19 Renjie Chen , Wenfeng Lin , Yichen Zhang , Jiangchuan Wei , Boyuan Liu , Chao Feng , Jiao Ran , Mingyu Guo

Text-to-image (T2I) diffusion models have made remarkable strides in generating and editing high-fidelity images from text. Yet, these models remain fundamentally generic, failing to adapt to the nuanced aesthetic preferences of individual…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Connor Dunlop , Matthew Zheng , Kavana Venkatesh , Pinar Yanardag

Direct Preference Optimization (DPO) has emerged as a predominant alignment method for diffusion models, facilitating off-policy training without explicit reward modeling. However, its reliance on large-scale, high-quality human preference…

计算机视觉与模式识别 · 计算机科学 2026-02-09 Khiem Pham , Quang Nguyen , Tung Nguyen , Jingsen Zhu , Michele Santacatterina , Dimitris Metaxas , Ramin Zabih

Direct Preference Optimization (DPO) has been successfully used to align large language models (LLMs) according to human preferences, and more recently it has also been applied to improving the quality of text-to-image diffusion models.…

计算机视觉与模式识别 · 计算机科学 2025-10-07 Shivanshu Shekhar , Shreyas Singh , Tong Zhang

Aligning large language models with human preferences has emerged as a critical focus in language modeling research. Yet, integrating preference learning into Text-to-Image (T2I) generative models is still relatively uncharted territory.…

计算机视觉与模式识别 · 计算机科学 2024-06-11 Yi Gu , Zhendong Wang , Yueqin Yin , Yujia Xie , Mingyuan Zhou

Direct Preference Optimization (DPO) has been proposed as an effective and efficient alternative to reinforcement learning from human feedback (RLHF). In this paper, we propose a novel and enhanced version of DPO based on curriculum…

计算机视觉与模式识别 · 计算机科学 2025-05-12 Florinel-Alin Croitoru , Vlad Hondru , Radu Tudor Ionescu , Nicu Sebe , Mubarak Shah

Neural retrieval models excel in Web search, but their training requires substantial amounts of labeled query-document pairs, which are costly to obtain. With the widespread availability of Web document collections like ClueWeb22, synthetic…

信息检索 · 计算机科学 2025-05-27 João Coelho , Bruno Martins , João Magalhães , Chenyan Xiong

Reinforcement learning from human feedback (RLHF) has proven effectiveness for aligning text-to-image (T2I) diffusion models with human preferences. Although Direct Preference Optimization (DPO) is widely adopted for its computational…

计算机视觉与模式识别 · 计算机科学 2025-10-03 Jiamu Bai , Xin Yu , Meilong Xu , Weitao Lu , Xin Pan , Kiwan Maeng , Daniel Kifer , Jian Wang , Yu Wang

Despite the rapid progress of text-to-image (T2I) models, generating images that accurately reflect complex compositional prompts (covering attribute bindings, object relationships, counting) still remains challenging. To address this, we…

计算机视觉与模式识别 · 计算机科学 2026-05-28 Zhuohan Liu , Wujian Peng , Yitong Chen , Zuxuan Wu

Text-to-3D generation automates 3D content creation from textual descriptions, which offers transformative potential across various fields. However, existing methods often struggle to align generated content with human preferences, limiting…

计算与语言 · 计算机科学 2025-02-10 Zhenglin Zhou , Xiaobo Xia , Fan Ma , Hehe Fan , Yi Yang , Tat-Seng Chua

Existing methods for preference tuning of text-to-image (T2I) diffusion models often rely on computationally expensive generation steps to create positive and negative pairs of images. These approaches frequently yield training pairs that…

计算机视觉与模式识别 · 计算机科学 2026-02-20 Sanjana Reddy , Ishaan Malhi , Sally Ma , Praneet Dutta

Direct Preference Optimization (DPO) has been proposed as an effective and efficient alternative to reinforcement learning from human feedback (RLHF). However, neither RLHF nor DPO take into account the fact that learning certain…

计算机视觉与模式识别 · 计算机科学 2026-02-16 Florinel-Alin Croitoru , Vlad Hondru , Radu Tudor Ionescu , Nicu Sebe , Mubarak Shah

Aligning text-to-image (T2I) diffusion models with preference optimization is valuable for human-annotated datasets, but the heavy cost of manual data collection limits scalability. Using reward models offers an alternative, however,…

计算机视觉与模式识别 · 计算机科学 2025-09-29 Kyungmin Lee , Xiaohang Li , Qifei Wang , Junfeng He , Junjie Ke , Ming-Hsuan Yang , Irfan Essa , Jinwoo Shin , Feng Yang , Yinxiao Li

Radiography Report Generation (RRG) has gained significant attention in medical image analysis as a promising tool for alleviating the growing workload of radiologists. However, despite numerous advancements, existing methods have yet to…

计算机视觉与模式识别 · 计算机科学 2025-09-29 Valentin Samokhin , Boris Shirokikh , Mikhail Goncharov , Dmitriy Umerenkov , Maksim Bobrin , Ivan Oseledets , Dmitry Dylov , Mikhail Belyaev

Recent advances in diffusion models have improved Real-World Image Super-Resolution (Real-ISR), but existing methods lack human feedback integration, risking misalignment with human preference and may leading to artifacts, hallucinations…

计算机视觉与模式识别 · 计算机科学 2025-04-22 Miaomiao Cai , Simiao Li , Wei Li , Xudong Huang , Hanting Chen , Jie Hu , Yunhe Wang

Aligning text-to-image (T2I) diffusion models with human preferences has emerged as a critical research challenge. While recent advances in this area have extended preference optimization techniques from large language models (LLMs) to the…

计算机视觉与模式识别 · 计算机科学 2025-12-25 Junyong Kang , Seohyun Lim , Kyungjune Baek , Hyunjung Shim

Recent advances in diffusion-based text-to-image (T2I) models have led to remarkable success in generating high-quality images from textual prompts. However, ensuring accurate alignment between the text and the generated image remains a…

计算机视觉与模式识别 · 计算机科学 2025-10-01 Jia Jun Cheng Xian , Muchen Li , Haotian Yang , Xin Tao , Pengfei Wan , Leonid Sigal , Renjie Liao
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