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A Colored point cloud, as a simple and efficient 3D representation, has many advantages in various fields, including robotic navigation and scene reconstruction. This representation is now commonly used in 3D reconstruction tasks relying on…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Bonan Liu , Guoyang Zhao , Jianhao Jiao , Guang Cai , Chengyang Li , Handi Yin , Yuyang Wang , Ming Liu , Pan Hui

Building Information Modeling (BIM) is increasingly used in the construction industry, but existing studies often ignore embedded rebars. Ground Penetrating Radar (GPR) provides a potential solution to develop as-built BIM with surface…

Computer Vision and Pattern Recognition · Computer Science 2021-11-01 Zhongming Xiang , Ge Ou , Abbas Rashidi

Lighting has a strong influence on visual appearance, yet understanding and representing lighting in images remains notoriously difficult. Various lighting representations exist, such as environment maps, irradiance, spherical harmonics, or…

Computer Vision and Pattern Recognition · Computer Science 2026-03-05 Zitian Zhang , Iliyan Georgiev , Michael Fischer , Yannick Hold-Geoffroy , Jean-François Lalonde , Valentin Deschaintre

Dense geometric matching determines the dense pixel-wise correspondence between a source and support image corresponding to the same 3D structure. Prior works employ an encoder of transformer blocks to correlate the two-frame features.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Shengjie Zhu , Xiaoming Liu

Person re-identification aims to maintain the identity of an individual in diverse locations through different non-overlapping camera views. The problem is fundamentally challenging due to appearance variations resulting from differing…

Computer Vision and Pattern Recognition · Computer Science 2014-10-27 Ziming Zhang , Yuting Chen , Venkatesh Saligrama

Integrating LiDAR and Camera information into Bird's-Eye-View (BEV) has become an essential topic for 3D object detection in autonomous driving. Existing methods mostly adopt an independent dual-branch framework to generate LiDAR and camera…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Hongxiang Cai , Zeyuan Zhang , Zhenyu Zhou , Ziyin Li , Wenbo Ding , Jiuhua Zhao

Cross-lingual image captioning is a challenging task that requires addressing both cross-lingual and cross-modal obstacles in multimedia analysis. The crucial issue in this task is to model the global and the local matching between the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-08 Zijie Song , Zhenzhen Hu , Yuanen Zhou , Ye Zhao , Richang Hong , Meng Wang

Image registration and in particular deformable registration methods are pillars of medical imaging. Inspired by the recent advances in deep learning, we propose in this paper, a novel convolutional neural network architecture that couples…

Computer Vision and Pattern Recognition · Computer Science 2018-09-18 Stergios Christodoulidis , Mihir Sahasrabudhe , Maria Vakalopoulou , Guillaume Chassagnon , Marie-Pierre Revel , Stavroula Mougiakakou , Nikos Paragios

Heterogeneous Face Recognition (HFR) aims to match face images across different domains, such as thermal and visible spectra, expanding the applicability of Face Recognition (FR) systems to challenging scenarios. However, the domain gap and…

Computer Vision and Pattern Recognition · Computer Science 2023-07-17 Anjith George , Sebastien Marcel

Image matching is a fundamental computer vision problem. While learning-based methods achieve state-of-the-art performance on existing benchmarks, they generalize poorly to in-the-wild images. Such methods typically need to train separate…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Xuelun Shen , Zhipeng Cai , Wei Yin , Matthias Müller , Zijun Li , Kaixuan Wang , Xiaozhi Chen , Cheng Wang

Inherent ambiguity in layout annotations poses significant challenges to developing accurate 360{\deg} room layout estimation models. To address this issue, we propose a novel Bi-Layout model capable of predicting two distinct layout types.…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Yu-Ju Tsai , Jin-Cheng Jhang , Jingjing Zheng , Wei Wang , Albert Y. C. Chen , Min Sun , Cheng-Hao Kuo , Ming-Hsuan Yang

In this paper we introduce a novel way to predict semantic information from sparse, single-shot LiDAR measurements in the context of autonomous driving. In particular, we fuse learned features from complementary representations. The…

Computer Vision and Pattern Recognition · Computer Science 2022-03-03 Frank Bieder , Maximilian Link , Simon Romanski , Haohao Hu , Christoph Stiller

This paper presents a novel method that allows a machine learning algorithm following the transformation-based learning paradigm \cite{brill95:tagging} to be applied to multiple classification tasks by training jointly and simultaneously on…

Computation and Language · Computer Science 2007-05-23 Radu Florian , Grace Ngai

In recent years, computer vision has transformed fields such as medical imaging, object recognition, and geospatial analytics. One of the fundamental tasks in computer vision is semantic image segmentation, which is vital for precise object…

Computer Vision and Pattern Recognition · Computer Science 2023-11-09 Dinar Sharafutdinov , Stanislav Kuskov , Saian Protasov , Alexey Voropaev

When a multimodal Transformer answers a visual question, is the prediction driven by visual evidence, linguistic reasoning, or genuinely fused cross-modal computation -- and how does this structure evolve across layers? We address this…

Artificial Intelligence · Computer Science 2026-02-18 Hongxuan Wu , Yukun Zhang , Xueqing Zhou

Estimating the rigid transformation between two LiDAR scans through putative 3D correspondences is a typical point cloud registration paradigm. Current 3D feature matching approaches commonly lead to numerous outlier correspondences, making…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Xinyi Li , Hu Cao , Yinlong Liu , Xueli Liu , Feihu Zhang , Alois Knoll

In this paper, we propose a novel learning-based pipeline for partially overlapping 3D point cloud registration. The proposed model includes an iterative distance-aware similarity matrix convolution module to incorporate information from…

Computer Vision and Pattern Recognition · Computer Science 2020-08-07 Jiahao Li , Changhao Zhang , Ziyao Xu , Hangning Zhou , Chi Zhang

Unsupervised domain adaptation (UDA) in 3D segmentation tasks presents a formidable challenge, primarily stemming from the sparse and unordered nature of point cloud data. Especially for LiDAR point clouds, the domain discrepancy becomes…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Xidong Peng , Runnan Chen , Feng Qiao , Lingdong Kong , Youquan Liu , Yujing Sun , Tai Wang , Xinge Zhu , Yuexin Ma

Pose estimation purely based on 3D point-cloud could suffer from degradation, e.g. scan blocks or scans in repetitive environments. To deal with this problem, we propose an approach for fusing 3D spinning LiDAR and IMU to estimate the…

Robotics · Computer Science 2017-10-20 Haoyang Ye , Ming Liu

In this work, we conducted a survey on different registration algorithms and investigated their suitability for hyperspectral historical image registration applications. After the evaluation of different algorithms, we choose an intensity…

Computer Vision and Pattern Recognition · Computer Science 2017-12-14 AmirAbbas Davari , Tobias Lindenberger , Armin Häberle , Vincent Christlein , Andreas Maier , Christian Riess