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Recently large-scale language-image models (e.g., text-guided diffusion models) have considerably improved the image generation capabilities to generate photorealistic images in various domains. Based on this success, current image editing…

计算机视觉与模式识别 · 计算机科学 2023-05-09 Wenkai Dong , Song Xue , Xiaoyue Duan , Shumin Han

Applying pre-trained generative denoising diffusion models (DDMs) for downstream tasks such as image semantic editing usually requires either fine-tuning DDMs or learning auxiliary editing networks in the existing literature. In this work,…

计算机视觉与模式识别 · 计算机科学 2023-10-19 Ye Zhu , Yu Wu , Zhiwei Deng , Olga Russakovsky , Yan Yan

We consider the problem of conditional text-to-image synthesis with diffusion models. Most recent works need to either finetune specific parts of the base diffusion model or introduce new trainable parameters, leading to deployment…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Tripti Shukla , Srikrishna Karanam , Balaji Vasan Srinivasan

Recent research explores the potential of Diffusion Models (DMs) for consistent object editing, which aims to modify object position, size, and composition, etc., while preserving the consistency of objects and background without changing…

计算机视觉与模式识别 · 计算机科学 2025-01-31 Liyao Jiang , Negar Hassanpour , Mohammad Salameh , Mohammadreza Samadi , Jiao He , Fengyu Sun , Di Niu

We introduce Style Tailoring, a recipe to finetune Latent Diffusion Models (LDMs) in a distinct domain with high visual quality, prompt alignment and scene diversity. We choose sticker image generation as the target domain, as the images…

Diffusion models have shown promising generative capabilities across diverse domains, yet aligning their outputs with desired reward functions remains a challenge, particularly in cases where reward functions are non-differentiable. Some…

Diffusion and flow matching models have achieved remarkable success in text-to-image generation. However, these models typically rely on the predetermined denoising schedules for all prompts. The multi-step reverse diffusion process can be…

计算机视觉与模式识别 · 计算机科学 2025-03-06 Zilyu Ye , Zhiyang Chen , Tiancheng Li , Zemin Huang , Weijian Luo , Guo-Jun Qi

Scene text editing is a challenging task that involves modifying or inserting specified texts in an image while maintaining its natural and realistic appearance. Most previous approaches to this task rely on style-transfer models that crop…

计算机视觉与模式识别 · 计算机科学 2023-04-13 Jiabao Ji , Guanhua Zhang , Zhaowen Wang , Bairu Hou , Zhifei Zhang , Brian Price , Shiyu Chang

We propose Diffusion-Sharpening, a fine-tuning approach that enhances downstream alignment by optimizing sampling trajectories. Existing RL-based fine-tuning methods focus on single training timesteps and neglect trajectory-level alignment,…

计算机视觉与模式识别 · 计算机科学 2025-02-18 Ye Tian , Ling Yang , Xinchen Zhang , Yunhai Tong , Mengdi Wang , Bin Cui

Text-to-image (T2I) diffusion models, with their impressive generative capabilities, have been adopted for image editing tasks, demonstrating remarkable efficacy. However, due to attention leakage and collision between the cross-attention…

计算机视觉与模式识别 · 计算机科学 2025-05-01 Xingxi Yin , Zhi Li , Jingfeng Zhang , Chenglin Li , Yin Zhang

Gasoline blending scheduling uses resource allocation and operation sequencing to meet a refinery's production requirements. The presence of nonlinearity, integer constraints, and a large number of decision variables adds complexity to this…

人工智能 · 计算机科学 2024-02-23 Wenxuan Fang , Wei Du , Renchu He , Yang Tang , Yaochu Jin , Gary G. Yen

The use of denoising diffusion models is becoming increasingly popular in the field of image editing. However, current approaches often rely on either image-guided methods, which provide a visual reference but lack control over semantic…

计算机视觉与模式识别 · 计算机科学 2025-01-07 Zhanbo Feng , Zenan Ling , Xinyu Lu , Ci Gong , Feng Zhou , Wugedele Bao , Jie Li , Fan Yang , Robert C. Qiu

Diffusion models have demonstrated great success in the field of text-to-image generation. However, alleviating the misalignment between the text prompts and images is still challenging. The root reason behind the misalignment has not been…

计算机视觉与模式识别 · 计算机科学 2024-11-28 Dongzhi Jiang , Guanglu Song , Xiaoshi Wu , Renrui Zhang , Dazhong Shen , Zhuofan Zong , Yu Liu , Hongsheng Li

Recent advances in generative modeling with diffusion processes (DPs) enabled breakthroughs in image synthesis. Despite impressive image quality, these models have various prompt compliance problems, including low recall in generating…

计算机视觉与模式识别 · 计算机科学 2024-10-30 Deepak Sridhar , Abhishek Peri , Rohith Rachala , Nuno Vasconcelos

Generating visually appealing images is fundamental to modern text-to-image generation models. A potential solution to better aesthetics is direct preference optimization (DPO), which has been applied to diffusion models to improve general…

计算机视觉与模式识别 · 计算机科学 2025-03-26 Zhanhao Liang , Yuhui Yuan , Shuyang Gu , Bohan Chen , Tiankai Hang , Mingxi Cheng , Ji Li , Liang Zheng

Well-designed prompts can guide text-to-image models to generate amazing images. However, the performant prompts are often model-specific and misaligned with user input. Instead of laborious human engineering, we propose prompt adaptation,…

计算与语言 · 计算机科学 2024-01-01 Yaru Hao , Zewen Chi , Li Dong , Furu Wei

Diffusion models are able to generate photorealistic images in arbitrary scenes. However, when applying diffusion models to image translation, there exists a trade-off between maintaining spatial structure and high-quality content. Besides,…

计算机视觉与模式识别 · 计算机科学 2023-02-07 Shiqi Sun , Shancheng Fang , Qian He , Wei Liu

Existing multi-modal image fusion methods fail to address the compound degradations presented in source images, resulting in fusion images plagued by noise, color bias, improper exposure, \textit{etc}. Additionally, these methods often…

计算机视觉与模式识别 · 计算机科学 2024-11-01 Hao Zhang , Lei Cao , Jiayi Ma

Existing text-to-image diffusion models, while excelling at subject synthesis, exhibit a persistent foreground bias that treats the background as a passive and under-optimized byproduct. This imbalance compromises global scene coherence and…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Yang Deng , David Mould , Paul L. Rosin , Yu-Kun Lai

Ensuring precise multimodal alignment between diffusion-generated images and input prompts has been a long-standing challenge. Earlier works finetune diffusion weight using high-quality preference data, which tends to be limited and…

计算机视觉与模式识别 · 计算机科学 2025-10-01 Jiayi Guo , Chuanhao Yan , Xingqian Xu , Yulin Wang , Kai Wang , Gao Huang , Humphrey Shi