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With its significant performance improvements, the deep learning paradigm has become a standard tool for modern image denoisers. While promising performance has been shown on seen noise distributions, existing approaches often suffer from…

计算机视觉与模式识别 · 计算机科学 2023-09-12 Hao Chen , Chenyuan Qu , Yu Zhang , Chen Chen , Jianbo Jiao

In a constant evolving world, change detection is of prime importance to keep updated maps. To better sense areas with complex geometry (urban areas in particular), considering 3D data appears to be an interesting alternative to classical…

计算机视觉与模式识别 · 计算机科学 2024-10-28 Iris de Gélis , Sébastien Lefèvre , Thomas Corpetti

Image denoising is a fundamental task in low-level computer vision. While recent deep learning-based image denoising methods have achieved impressive performance, they are black-box models and the underlying denoising principle remains…

计算机视觉与模式识别 · 计算机科学 2023-09-27 Jingwei Niu , Jun Cheng , Shan Tan

To better address challenging issues of the irregularity and inhomogeneity inherently present in 3D point clouds, researchers have been shifting their focus from the design of hand-craft point feature towards the learning of 3D point…

计算机视觉与模式识别 · 计算机科学 2022-11-21 Xiang Li , Mingyang Wang , Congcong Wen , Lingjing Wang , Nan Zhou , Yi Fang

Although the advances of self-supervised blind denoising are significantly superior to conventional approaches without clean supervision in synthetic noise scenarios, it shows poor quality in real-world images due to spatially correlated…

计算机视觉与模式识别 · 计算机科学 2023-02-22 Kanggeun Lee , Kyungryun Lee , Won-Ki Jeong

Estimating the 6D object pose from a single RGB image often involves noise and indeterminacy due to challenges such as occlusions and cluttered backgrounds. Meanwhile, diffusion models have shown appealing performance in generating…

计算机视觉与模式识别 · 计算机科学 2024-03-25 Li Xu , Haoxuan Qu , Yujun Cai , Jun Liu

Pre-training strategies play a critical role in advancing the performance of transformer-based models for 3D point cloud tasks. In this paper, we introduce Point-RTD (Replaced Token Denoising), a novel pretraining strategy designed to…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Gunner Stone , Youngsook Choi , Alireza Tavakkoli , Ankita Shukla

LiDARs have been widely adopted to modern self-driving vehicles, providing 3D information of the scene and surrounding objects. However, adverser weather conditions still pose significant challenges to LiDARs since point clouds captured…

计算机视觉与模式识别 · 计算机科学 2022-11-21 Ming-Yuan Yu , Ram Vasudevan , Matthew Johnson-Roberson

This paper presents a novel self-supervised approach to reconstruct human shape and pose from noisy point cloud data. Relying on large amount of dataset with ground-truth annotations, recent learning-based approaches predict correspondences…

计算机视觉与模式识别 · 计算机科学 2021-11-30 Xinxin Zuo , Sen Wang , Qiang Sun , Minglun Gong , Li Cheng

Point cloud obtained from 3D scanning is often sparse, noisy, and irregular. To cope with these issues, recent studies have been separately conducted to densify, denoise, and complete inaccurate point cloud. In this paper, we advocate that…

计算机视觉与模式识别 · 计算机科学 2022-03-16 Jaesung Choe , Byeongin Joung , Francois Rameau , Jaesik Park , In So Kweon

Consistency models possess high capabilities for image generation, advancing sampling steps to a single step through their advanced techniques. Current advancements move one step forward consistency training techniques and eliminates the…

机器学习 · 计算机科学 2024-04-10 Mahmut S. Gokmen , Cody Bumgardner , Jie Zhang , Ge Wang , Jin Chen

Recently developed deep-learning-based denoisers often outperform state-of-the-art conventional denoisers such as the BM3D. They are typically trained to minimize the mean squared error (MSE) between the output image of a deep neural…

计算机视觉与模式识别 · 计算机科学 2021-04-23 Shakarim Soltanayev , Se Young Chun

We present a novel approach to learning a point-wise, meaningful embedding for point-clouds in an unsupervised manner, through the use of neural-networks. The domain of point-cloud processing via neural-networks is rapidly evolving, with…

图形学 · 计算机科学 2019-03-12 Matan Shoef , Sharon Fogel , Daniel Cohen-Or

Computed tomography (CT) has played a vital role in medical diagnosis, assessment, and therapy planning, etc. In clinical practice, concerns about the increase of X-ray radiation exposure attract more and more attention. To lower the X-ray…

图像与视频处理 · 电气工程与系统科学 2022-01-19 Zhicheng Zhang , Xiaokun Liang , Wei Zhao , Lei Xing

Recently, self-supervised neural networks have shown excellent image denoising performance. However, current dataset free methods are either computationally expensive, require a noise model, or have inadequate image quality. In this work we…

计算机视觉与模式识别 · 计算机科学 2023-05-11 Youssef Mansour , Reinhard Heckel

3D dynamic point clouds provide a natural discrete representation of real-world objects or scenes in motion, with a wide range of applications in immersive telepresence, autonomous driving, surveillance, \etc. Nevertheless, dynamic point…

图像与视频处理 · 电气工程与系统科学 2021-07-28 Wei Hu , Qianjiang Hu , Zehua Wang , Xiang Gao

We propose Noisier2Inverse, a correction-free self-supervised deep learning approach for general inverse problems. The proposed method learns a reconstruction function without the need for ground truth samples and is applicable in cases…

计算机视觉与模式识别 · 计算机科学 2025-03-30 Nadja Gruber , Johannes Schwab , Markus Haltmeier , Ander Biguri , Clemens Dlaska , Gyeongha Hwang

We propose a surface fitting method for unstructured 3D point clouds. This method, called DeepFit, incorporates a neural network to learn point-wise weights for weighted least squares polynomial surface fitting. The learned weights act as a…

计算机视觉与模式识别 · 计算机科学 2020-03-25 Yizhak Ben-Shabat , Stephen Gould

Text-based 2D diffusion models have demonstrated impressive capabilities in image generation and editing. Meanwhile, the 2D diffusion models also exhibit substantial potentials for 3D editing tasks. However, how to achieve consistent edits…

计算机视觉与模式识别 · 计算机科学 2024-06-26 Ruihuang Li , Liyi Chen , Zhengqiang Zhang , Varun Jampani , Vishal M. Patel , Lei Zhang

Ambient diffusion is a recently proposed framework for training diffusion models using corrupted data. Both Ambient Diffusion and alternative SURE-based approaches for learning diffusion models from corrupted data resort to approximations…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Giannis Daras , Alexandros G. Dimakis , Constantinos Daskalakis