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Diffusion-based generative models are a design framework that allows generating new images from processes analogous to those found in non-equilibrium thermodynamics. These models model the reversal of a physical diffusion process in which…

Artificial Intelligence · Computer Science 2023-02-21 Jordi de la Torre

Image stabilization performed during imaging and/or post-processing poses one of the most significant challenges to photo-response non-uniformity based source camera attribution from videos. When performed digitally, stabilization involves…

Image and Video Processing · Electrical Eng. & Systems 2020-11-25 Enes Altinisik , Husrev Taha Sencar

Recently, significant progress has been made in the study of methods for 3D reconstruction from multiple images using implicit neural representations, exemplified by the neural radiance field (NeRF) method. Such methods, which are based on…

Computer Vision and Pattern Recognition · Computer Science 2024-04-19 Wooseok Kim , Taiki Fukiage , Takeshi Oishi

Current object recognition methods fail on object sets that include both diffuse, reflective and transparent materials, although they are very common in domestic scenarios. We show that a combination of cues from multiple sensor modalities,…

Computer Vision and Pattern Recognition · Computer Science 2016-06-06 Alexander Hagg , Frederik Hegger , Paul Plöger

Modeling outdoor scenes for the synthetic 3D environment requires the recovery of reflectance/albedo information from raw images, which is an ill-posed problem due to the complicated unmodeled physics in this process (e.g., indirect…

Computer Vision and Pattern Recognition · Computer Science 2024-09-23 Shuang Song , Rongjun Qin

In this paper, we present a technique for estimating the geometry and reflectance of objects using only a camera, flashlight, and optionally a tripod. We propose a simple data capture technique in which the user goes around the object,…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Daniel Lichy , Jiaye Wu , Soumyadip Sengupta , David W. Jacobs

Image restoration is one of the most important areas in imaging science. Mathematical tools have been widely used in image restoration, where wavelet frame based approach is one of the successful examples. In this paper, we introduce a…

Functional Analysis · Mathematics 2016-02-18 Bin Dong , Zuowei Shen , Peichu Xie

Recently, there has been a growing attention in image generation models. However, concerns have emerged regarding potential misuse and intellectual property (IP) infringement associated with these models. Therefore, it is necessary to…

Computer Vision and Pattern Recognition · Computer Science 2023-05-31 Zhenting Wang , Chen Chen , Yi Zeng , Lingjuan Lyu , Shiqing Ma

Image fusion technology is widely used to fuse the complementary information between multi-source remote sensing images. Inspired by the frontier of deep learning, this paper first proposes a heterogeneous-integrated framework based on a…

Image and Video Processing · Electrical Eng. & Systems 2024-05-15 Menghui Jiang , Huanfeng Shen , Jie Li , Liangpei Zhang

While language-guided image manipulation has made remarkable progress, the challenge of how to instruct the manipulation process faithfully reflecting human intentions persists. An accurate and comprehensive description of a manipulation…

Computer Vision and Pattern Recognition · Computer Science 2023-08-03 Yasheng Sun , Yifan Yang , Houwen Peng , Yifei Shen , Yuqing Yang , Han Hu , Lili Qiu , Hideki Koike

Current image-to-image translation methods formulate the task with conditional generation models, leading to learning only the recolorization or regional changes as being constrained by the rich structural information provided by the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-28 Yu-Jie Chen , Shin-I Cheng , Wei-Chen Chiu , Hung-Yu Tseng , Hsin-Ying Lee

In finite-volume-based flow simulations, absorbing layers are widely used to reduce pressure wave reflections at boundaries of the computational domain. A disadvantage of absorbing layers is that they contain case-dependent parameters; thus…

Fluid Dynamics · Physics 2017-11-29 Robinson Perić

Diffusion models have become the go-to method for large-scale generative models in real-world applications. These applications often involve data distributions confined within bounded domains, typically requiring ad-hoc thresholding…

Machine Learning · Statistics 2024-01-09 Wei Deng , Yu Chen , Nicole Tianjiao Yang , Hengrong Du , Qi Feng , Ricky T. Q. Chen

Building on the momentum of image generation diffusion models, there is an increasing interest in video-based diffusion models. However, video generation poses greater challenges due to its higher-dimensional nature, the scarcity of…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Aimon Rahman , Malsha V. Perera , Vishal M. Patel

Diffusion models, the most popular generative paradigm so far, can inject conditional information into the generation path to guide the latent towards desired directions. However, existing text-to-image diffusion models often fail to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-18 Lichen Bai , Shitong Shao , Zikai Zhou , Zipeng Qi , Zhiqiang Xu , Haoyi Xiong , Zeke Xie

Environment maps are used to simulate reflections off curved objects. We present a technique to reflect a user, or a group of users, in a real environment, onto a virtual object, in a virtual reality application, using the live video feeds…

Graphics · Computer Science 2007-05-23 Paul Anderson , Goncalo Carvalho

Inversion methods, such as Textual Inversion, generate personalized images by incorporating concepts of interest provided by user images. However, existing methods often suffer from overfitting issues, where the dominant presence of…

Computer Vision and Pattern Recognition · Computer Science 2024-01-12 Xulu Zhang , Xiao-Yong Wei , Jinlin Wu , Tianyi Zhang , Zhaoxiang Zhang , Zhen Lei , Qing Li

In a recent article the authors showed that the radiative Transfer equations with multiple frequencies and scattering can be formulated as a nonlinear integral system. In the present article, the formulation is extended to handle reflective…

Numerical Analysis · Mathematics 2023-06-12 Olivier Pironneau , Pierre-Henri Tournier

The success of denoising diffusion models raises important questions regarding their generalisation behaviour, particularly in high-dimensional settings. Notably, it has been shown that when training and sampling are performed perfectly,…

Machine Learning · Statistics 2025-07-08 Tyler Farghly , Patrick Rebeschini , George Deligiannidis , Arnaud Doucet

Recent advancements in image synthesis are fueled by the advent of large-scale diffusion models. Yet, integrating realistic object visualizations seamlessly into new or existing backgrounds without extensive training remains a challenge.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Phillip Mueller , Jannik Wiese , Ioan Craciun , Lars Mikelsons
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