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Lifting 2D diffusion for 3D generation is a challenging problem due to the lack of geometric prior and the complex entanglement of materials and lighting in natural images. Existing methods have shown promise by first creating the geometry…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Lingteng Qiu , Guanying Chen , Xiaodong Gu , Qi Zuo , Mutian Xu , Yushuang Wu , Weihao Yuan , Zilong Dong , Liefeng Bo , Xiaoguang Han

Starting from a variational formulation, we present a model for image segmentation that employs both region statistics and edge information. This combination allows for improved flexibility, making the proposed model suitable to process a…

Analysis of PDEs · Mathematics 2019-10-15 Carlos M. Paniagua Mejia

This paper delves into the text-guided image editing task, focusing on modifying a reference image according to user-specified textual feedback to embody specific attributes. Despite recent advancements, a persistent challenge remains that…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Lidong Zeng , Zhedong Zheng , Yinwei Wei , Tat-seng Chua

Human image generation is a very challenging task since it is affected by many factors. Many human image generation methods focus on generating human images conditioned on a given pose, while the generated backgrounds are often blurred.In…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Dong Liang , Rui Wang , Xiaowei Tian , Cong Zou

Implicit Neural Representation (INR) has become a popular method for representing visual signals (e.g., 2D images and 3D scenes), demonstrating promising results in various downstream applications. Given its potential as a medium for visual…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Delong Wu , Hao Zhu , Qi Zhang , You Li , Zhan Ma , Xun Cao

Recently, a number of image-mixing-based augmentation techniques have been introduced to improve the generalization of deep neural networks. In these techniques, two or more randomly selected natural images are mixed together to generate an…

Computer Vision and Pattern Recognition · Computer Science 2024-05-27 Khawar Islam , Muhammad Zaigham Zaheer , Arif Mahmood , Karthik Nandakumar

Real-world image recognition is often challenged by the variability of visual styles including object textures, lighting conditions, filter effects, etc. Although these variations have been deemed to be implicitly handled by more training…

Computer Vision and Pattern Recognition · Computer Science 2019-04-26 Hyeonseob Nam , Hyo-Eun Kim

A central goal of modern magnetic resonance imaging (MRI) is to reduce the time required to produce high-quality images. Efforts have included hardware and software innovations such as parallel imaging, compressed sensing, and deep…

Medical Physics · Physics 2023-03-27 Yihong Xu , Chad W. Farris , Stephan W. Anderson , Xin Zhang , Keith A. Brown

Region-adaptive normalization (RAN) methods have been widely used in the generative adversarial network (GAN)-based image-to-image translation technique. However, since these approaches need a mask image to infer the pixel-wise affine…

Computer Vision and Pattern Recognition · Computer Science 2022-07-29 Yoon-Jae Yeo , Min-Cheol Sagong , Seung Park , Sung-Jea Ko , Yong-Goo Shin

We demonstrate an image dequantizing diffusion model that enables novel edits on natural images. We propose operating on quantized images because they offer easy abstraction for patch-based edits and palette transfer. In particular, we show…

Computer Vision and Pattern Recognition · Computer Science 2025-01-24 Vaibhav Vavilala , Faaris Shaik , David Forsyth

Image and texture synthesis is a challenging task that has long been drawing attention in the fields of image processing, graphics, and machine learning. This problem consists of modelling the desired type of images, either through training…

Computer Vision and Pattern Recognition · Computer Science 2016-09-26 Yi Ren , Yaniv Romano , Michael Elad

Controllable person image generation aims to produce realistic human images with desirable attributes such as a given pose, cloth textures, or hairstyles. However, the large spatial misalignment between source and target images makes the…

Computer Vision and Pattern Recognition · Computer Science 2023-01-11 Jichao Zhang , Aliaksandr Siarohin , Hao Tang , Enver Sangineto , Wei Wang , Humphrey Sh , Nicu Sebe

Generating new images with desired properties (e.g. new view/poses) from source images has been enthusiastically pursued recently, due to its wide range of potential applications. One way to ensure high-quality generation is to use multiple…

Computer Vision and Pattern Recognition · Computer Science 2022-02-03 Jiawei Lu , He Wang , Tianjia Shao , Yin Yang , Kun Zhou

As generative models expand the possibilities of visual content creation, layered image synthesis has emerged as a promising direction for controllable and creative editing. However, existing methods struggle to fully realize this…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Kyoungkook Kang , Gyujin Sim , Sunghyun Cho

Despite the growing demand for accurate surface normal estimation models, existing methods use general-purpose dense prediction models, adopting the same inductive biases as other tasks. In this paper, we discuss the inductive biases needed…

Computer Vision and Pattern Recognition · Computer Science 2024-03-04 Gwangbin Bae , Andrew J. Davison

Image retouching, aiming to regenerate the visually pleasing renditions of given images, is a subjective task where the users are with different aesthetic sensations. Most existing methods deploy a deterministic model to learn the…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Haolin Wang , Jiawei Zhang , Ming Liu , Xiaohe Wu , Wangmeng Zuo

Even though image signals are typically acquired on a regular two dimensional grid, there exist many scenarios where non-regular sampling is possible. Non-regular sampling can remove aliasing. In terms of the non-regular sampling patterns,…

Image and Video Processing · Electrical Eng. & Systems 2022-03-02 Simon Grosche , Jürgen Seiler , André Kaup

Diffusion models have emerged as a key pillar of foundation models in visual domains. One of their critical applications is to universally solve different downstream inverse tasks via a single diffusion prior without re-training for each…

Machine Learning · Computer Science 2023-10-03 Morteza Mardani , Jiaming Song , Jan Kautz , Arash Vahdat

This paper introduces a new method to stylize 3D geometry. The key observation is that the surface normal is an effective instrument to capture different geometric styles. Centered around this observation, we cast stylization as a shape…

Graphics · Computer Science 2021-07-13 Hsueh-Ti Derek Liu , Alec Jacobson

To achieve visual consistency in composite images, recent image harmonization methods typically summarize the appearance pattern of global background and apply it to the global foreground without location discrepancy. However, for a real…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Ziyue Zhu , Zhao Zhang , Zheng Lin , Ruiqi Wu , Zhi Chai , Chun-Le Guo