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In the field of computer vision, the persistent presence of color bias, resulting from fluctuations in real-world lighting and camera conditions, presents a substantial challenge to the robustness of models. This issue is particularly…

Computer Vision and Pattern Recognition · Computer Science 2024-01-22 Yunpeng Gong , Jiaquan Li , Lifei Chen , Min Jiang

In this paper, we propose a method to correct for chromatic aberration in a single photograph. Our method replicates what a user would do in a photo editing program to account for this defect. We find matching keypoints in each colour…

Graphics · Computer Science 2020-02-11 Benjamin T. Cecchetto

Point cloud registration has seen significant advancements with the application of deep learning techniques. However, existing approaches often overlook the potential of integrating radiometric information from RGB images. This limitation…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Zhaoyi Wang , Shengyu Huang , Jemil Avers Butt , Yuanzhou Cai , Matej Varga , Andreas Wieser

In this paper, we present a new approach which qualifies or not a solution found by a heuristic as a potential optimal solution. Our approach is based on the following observation: for a minimization problem, the number of admissible…

Discrete Mathematics · Computer Science 2018-12-20 Alexandre Gondran , Laurent Moalic

We consider the problem of 3D object pose estimation. While much recent work has focused on the RGB domain, the reliance on accurately annotated images limits their generalizability and scalability. On the other hand, the easily available…

Computer Vision and Pattern Recognition · Computer Science 2019-08-01 Georgios Georgakis , Srikrishna Karanam , Ziyan Wu , Jana Kosecka

Previous studies have demonstrated the effectiveness of point-based neural models on the point cloud analysis task. However, there remains a crucial issue on producing the efficient input embedding for raw point coordinates. Moreover,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Zihao Li , Pan Gao , Kang You , Chuan Yan , Manoranjan Paul

Purple flare, a diffuse chromatic aberration artifact commonly found around highlight areas, severely degrades the tone transition and color of the image. Existing traditional methods are based on hand-crafted features, which lack…

Computer Vision and Pattern Recognition · Computer Science 2026-01-12 Pu Wang , Shuning Sun , Jialang Lu , Chen Wu , Zhihua Zhang , Youshan Zhang , Chenggang Shan , Dianjie Lu , Guijuan Zhang , Zhuoran Zheng

This paper addresses the problem of compression of 3D point cloud sequences that are characterized by moving 3D positions and color attributes. As temporally successive point cloud frames are similar, motion estimation is key to effective…

Computer Vision and Pattern Recognition · Computer Science 2016-08-24 Dorina Thanou , Philip A. Chou , Pascal Frossard

Camera and lidar are important sensor modalities for robotics in general and self-driving cars in particular. The sensors provide complementary information offering an opportunity for tight sensor-fusion. Surprisingly, lidar-only methods…

Computer Vision and Pattern Recognition · Computer Science 2020-05-07 Sourabh Vora , Alex H. Lang , Bassam Helou , Oscar Beijbom

Portrait photo retouching is a photo retouching task that emphasizes human-region priority and group-level consistency. The lookup table-based method achieves promising retouching performance by learning image-adaptive weights to combine…

Image and Video Processing · Electrical Eng. & Systems 2021-12-08 Binglu Wang , Chengzhe Lu , Dawei Yan , Yongqiang Zhao

Color image segmentation is a crucial step in many computer vision and pattern recognition applications. This article introduces an adaptive and unsupervised clustering approach based on Voronoi regions, which can be applied to solve the…

Computer Vision and Pattern Recognition · Computer Science 2016-04-05 R. Hettiarachchi , J. F. Peters

The introduction of cheap RGB-D cameras, stereo cameras, and LIDAR devices has given the computer vision community 3D information that conventional RGB cameras cannot provide. This data is often stored as a point cloud. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2018-10-22 Aleksandr Savchenkov , Andrew Davis , Xuan Zhao

In remote sensing image-blurring is induced by many sources such as atmospheric scatter, optical aberration, spatial and temporal sensor integration. The natural blurring can be exploited to speed up target search by fast template matching.…

Computer Vision and Pattern Recognition · Computer Science 2014-07-28 Arif Mahmood , Ajmal Mian , Robyn Owens

Matching 3D rigid point clouds in complex environments robustly and accurately is still a core technique used in many applications. This paper proposes a new architecture combining error estimation from sample covariances and dual global…

Computer Vision and Pattern Recognition · Computer Science 2017-07-28 Can Pu , Nanbo Li , Robert B Fisher

Accurate classification of objects in 3D point clouds is a significant problem in several applications, such as autonomous navigation and augmented/virtual reality scenarios, which has become a research hot spot. In this paper, we presented…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Ramin Mousa , Mitra Khezli , Mohamadreza Azadi , Vahid Nikoofard , Saba Hesaraki

We consider the selective graph coloring problem, which is a generalization of the classical graph coloring problem. Given a graph together with a partition of its vertex set into clusters, we want to choose exactly one vertex per cluster…

Data Structures and Algorithms · Computer Science 2021-01-01 Oylum Şeker , Tınaz Ekim , Z. Caner Taşkın

Point cloud completion networks are conventionally trained to minimize the disparities between the completed point cloud and the ground-truth counterpart. However, an incomplete object-level point cloud can have multiple valid completion…

Computer Vision and Pattern Recognition · Computer Science 2025-01-16 Kevin Tirta Wijaya , Christofel Rio Goenawan , Seung-Hyun Kong

Color constancy and color illusion perception are two phenomena occurring in the human visual system, which can help us reveal unknown mechanisms of human perception. For decades computer vision scientists have developed numerous color…

Computer Vision and Pattern Recognition · Computer Science 2023-12-21 Oguzhan Ulucan , Diclehan Ulucan , Marc Ebner

Automatic image clustering is a cornerstone of computer vision, yet its application to image enhancement remains limited, primarily due to the difficulty of defining clusters that are meaningful for this specific task. To address this…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Giulia Bonino , Luca Alberto Rizzo

The Gottesman-Kitaev-Preskill (GKP) code is an important type of bosonic quantum error-correcting code. Since the GKP code only protects against small shift errors in $\hat{p}$ and $\hat{q}$ quadratures, it is necessary to concatenate the…

Quantum Physics · Physics 2022-01-03 Jiaxuan Zhang , Jian Zhao , Yu-Chun Wu , Guo-Ping Guo