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Recently, video generation has witnessed rapid advancements, drawing increasing attention to image-to-video (I2V) synthesis on mobile devices. However, the substantial computational complexity and slow generation speed of diffusion models…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Shuai Zhang , Bao Tang , Siyuan Yu , Yueting Zhu , Jingfeng Yao , Ya Zou , Shanglin Yuan , Li Yu , Wenyu Liu , Xinggang Wang

Diffusion models have transformed the image-to-image (I2I) synthesis and are now permeating into videos. However, the advancement of video-to-video (V2V) synthesis has been hampered by the challenge of maintaining temporal consistency…

Computer Vision and Pattern Recognition · Computer Science 2024-01-01 Feng Liang , Bichen Wu , Jialiang Wang , Licheng Yu , Kunpeng Li , Yinan Zhao , Ishan Misra , Jia-Bin Huang , Peizhao Zhang , Peter Vajda , Diana Marculescu

The recent success of denoising diffusion models has significantly advanced text-to-image generation. While these large-scale pretrained models show excellent performance in general image synthesis, downstream objectives often require…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Maorong Wang , Jiafeng Mao , Xueting Wang , Toshihiko Yamasaki

Talking head video generation aims to animate a human face in a still image with dynamic poses and expressions using motion information derived from a target-driving video, while maintaining the person's identity in the source image.…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Fa-Ting Hong , Dan Xu

In recent years, fueled by the rapid advancement of diffusion models, text-to-video (T2V) generation models have achieved remarkable progress, with notable examples including Pika, Luma, Kling, and Open-Sora. Although these models exhibit…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Jiayang Liu , Siyuan Liang , Shiqian Zhao , Rongcheng Tu , Wenbo Zhou , Aishan Liu , Dacheng Tao , Siew Kei Lam

Diffusion models excel at generating images conditioned on text prompts, but the resulting images often do not satisfy user-specific criteria measured by scalar rewards such as Aesthetic Scores. This alignment typically requires…

Significant advances have been made in human-centric video generation, yet the joint video-depth generation problem remains underexplored. Most existing monocular depth estimation methods may not generalize well to synthesized images or…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Yuanhao Zhai , Kevin Lin , Linjie Li , Chung-Ching Lin , Jianfeng Wang , Zhengyuan Yang , David Doermann , Junsong Yuan , Zicheng Liu , Lijuan Wang

Image diffusion models have been adapted for real-world video super-resolution to tackle over-smoothing issues in GAN-based methods. However, these models struggle to maintain temporal consistency, as they are trained on static images,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Rui Xie , Yinhong Liu , Penghao Zhou , Chen Zhao , Jun Zhou , Kai Zhang , Zhenyu Zhang , Jian Yang , Zhenheng Yang , Ying Tai

To replicate the success of text-to-image (T2I) generation, recent works employ large-scale video datasets to train a text-to-video (T2V) generator. Despite their promising results, such paradigm is computationally expensive. In this work,…

Computer Vision and Pattern Recognition · Computer Science 2023-03-20 Jay Zhangjie Wu , Yixiao Ge , Xintao Wang , Weixian Lei , Yuchao Gu , Yufei Shi , Wynne Hsu , Ying Shan , Xiaohu Qie , Mike Zheng Shou

Visible-infrared person re-identification seeks to retrieve images of the same individual captured over a distributed network of RGB and IR sensors. Several V-I ReID approaches directly integrate both V and I modalities to discriminate…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Mahdi Alehdaghi , Arthur Josi , Pourya Shamsolmoali , Rafael M. O. Cruz , Eric Granger

An authentic face restoration system is becoming increasingly demanding in many computer vision applications, e.g., image enhancement, video communication, and taking portrait. Most of the advanced face restoration models can recover…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Yang Zhao , Tingbo Hou , Yu-Chuan Su , Xuhui Jia. Yandong Li , Matthias Grundmann

Without using explicit reward, direct preference optimization (DPO) employs paired human preference data to fine-tune generative models, a method that has garnered considerable attention in large language models (LLMs). However, exploration…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Yunhong Lu , Qichao Wang , Hengyuan Cao , Xierui Wang , Xiaoyin Xu , Min Zhang

Recent progress in video diffusion models has markedly advanced character animation, which synthesizes motioned videos by animating a static identity image according to a driving video. Explicit methods represent motion using skeleton,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Zhufeng Xu , Xuan Gao , Feng-Lin Liu , Haoxian Zhang , Zhixue Fang , Yu-Kun Lai , Xiaoqiang Liu , Pengfei Wan , Lin Gao

To fully leverage the capabilities of diffusion models, we are often interested in optimizing downstream reward functions during inference. While numerous algorithms for reward-guided generation have been recently proposed due to their…

Machine Learning · Computer Science 2025-04-18 Masatoshi Uehara , Xingyu Su , Yulai Zhao , Xiner Li , Aviv Regev , Shuiwang Ji , Sergey Levine , Tommaso Biancalani

Preserving face identity is a critical yet persistent challenge in diffusion-based image restoration. While reference faces offer a path forward, existing reference-based methods often fail to fully exploit their potential. This paper…

Computer Vision and Pattern Recognition · Computer Science 2025-05-29 Mo Zhou , Keren Ye , Viraj Shah , Kangfu Mei , Mauricio Delbracio , Peyman Milanfar , Vishal M. Patel , Hossein Talebi

This paper addresses the challenge of achieving high-quality and fast image generation that aligns with complex human preferences. While recent advancements in diffusion models and distillation have enabled rapid generation, the effective…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Yihong Luo , Tianyang Hu , Weijian Luo , Kenji Kawaguchi , Jing Tang

We introduce LLaVA-Reward, an efficient reward model designed to automatically evaluate text-to-image (T2I) generations across multiple perspectives, leveraging pretrained multimodal large language models (MLLMs). Existing MLLM-based…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Shijie Zhou , Ruiyi Zhang , Huaisheng Zhu , Branislav Kveton , Yufan Zhou , Jiuxiang Gu , Jian Chen , Changyou Chen

Recent advancements adopt online reinforcement learning (RL) from LLMs to text-to-image rectified flow diffusion models for reward alignment. The use of group-level rewards successfully aligns the model with the targeted reward. However, it…

Machine Learning · Computer Science 2026-01-06 Yiyang Wang , Xi Chen , Xiaogang Xu , Yu Liu , Hengshuang Zhao

Video generation has increasingly gained interest in both academia and industry. Although commercial tools can generate plausible videos, there is a limited number of open-source models available for researchers and engineers. In this work,…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Haoxin Chen , Menghan Xia , Yingqing He , Yong Zhang , Xiaodong Cun , Shaoshu Yang , Jinbo Xing , Yaofang Liu , Qifeng Chen , Xintao Wang , Chao Weng , Ying Shan

The success of deep learning based face recognition systems has given rise to serious privacy concerns due to their ability to enable unauthorized tracking of users in the digital world. Existing methods for enhancing privacy fail to…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Fahad Shamshad , Muzammal Naseer , Karthik Nandakumar