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We present an adaptive sampling approach to 3D reconstruction of the welding joint using the point cloud that is generated by a laser sensor. We start with a randomized strategy to approximate the surface of the volume of interest through…

Robotics · Computer Science 2015-07-09 Soheil Keshmiri , Syeda Mariam Ahmed , Yue Wu , Chee Meng Chew , Chee Khiang Pang

To extend LSST's coverage of the transient and variable sky down to minute timescales, we propose that observations of the Deep Drilling Fields are acquired in sequences of continuous exposures each lasting 2--4 hours. This will allow LSST…

Instrumentation and Methods for Astrophysics · Physics 2018-12-10 Keaton J. Bell , J. J. Hermes

Recently, 3D Gaussian Splatting has demonstrated impressive novel view synthesis results, reaching high fidelity and efficiency. However, strong artifacts can be observed when changing the sampling rate, \eg, by changing focal length or…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Zehao Yu , Anpei Chen , Binbin Huang , Torsten Sattler , Andreas Geiger

Acquisition and tracking systems form an important component of free-space optical communications due to directional nature of the optical signal. Acquisition subsystems are needed in order to search and locate the receiver terminal in an…

Signal Processing · Electrical Eng. & Systems 2020-01-14 Muhammad Salman Bashir , Mohamed-Slim Alouini

While 3D Vision Foundation Models (3DVFMs) have demonstrated remarkable zero-shot capabilities in visual geometry estimation, their direct application to generalizable novel view synthesis (NVS) remains challenging. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Minh-Quan Viet Bui , Jaeho Moon , Munchurl Kim

We present the near-Maximal Algorithm for Poisson-disk Sampling (nMAPS) to generate point distributions for variable resolution Delaunay triangular and tetrahedral meshes in two and three-dimensions, respectively. nMAPS consists of two…

Numerical Analysis · Mathematics 2021-11-30 Johannes Krotz , Matthew R. Sweeney , Jeffrey D. Hyman , Juan M. Restrepo , Carl W. Gable

The primary aim of Audio-Visual Segmentation (AVS) is to precisely identify and locate auditory elements within visual scenes by accurately predicting segmentation masks at the pixel level. Achieving this involves comprehensively…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Khanh-Binh Nguyen , Chae Jung Park

Time-series data, such as unsteady pressure-sensitive paint (PSP) measurement data, may contain a significant amount of random noise. Thus, in this study, we investigated a noise-reduction method that combines multivariate singular spectrum…

Image and Video Processing · Electrical Eng. & Systems 2022-11-14 Yuya Ohmichi , Kohmi Takahashi , Kazuyuki Nakakita

Photoacoustic computed tomography (PACT) is an emerging computed imaging modality that exploits optical contrast and ultrasonic detection principles to form images of the absorbed optical energy density within tissue. When the imaging…

Medical Physics · Physics 2016-11-15 Qiwei Sheng , Kun Wang , Thomas P. Matthews , Jun Xia , Liren Zhu , Lihong V. Wang , Mark A. Anastasio

Vision-based roadside 3D object detection has attracted rising attention in autonomous driving domain, since it encompasses inherent advantages in reducing blind spots and expanding perception range. While previous work mainly focuses on…

Computer Vision and Pattern Recognition · Computer Science 2024-06-14 Wenjie Wang , Yehao Lu , Guangcong Zheng , Shuigen Zhan , Xiaoqing Ye , Zichang Tan , Jingdong Wang , Gaoang Wang , Xi Li

Gaussian splatting (GS) along with its extensions and variants provides outstanding performance in real-time scene rendering while meeting reduced storage demands and computational efficiency. While the selection of 2D images capturing the…

Computer Vision and Pattern Recognition · Computer Science 2025-12-04 Konstantinos D. Polyzos , Athanasios Bacharis , Saketh Madhuvarasu , Nikos Papanikolopoulos , Tara Javidi

3D Gaussian Splatting (3D-GS) technique couples 3D Gaussian primitives with differentiable rasterization to achieve high-quality novel view synthesis results while providing advanced real-time rendering performance. However, due to the flaw…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Zongxin Ye , Wenyu Li , Sidun Liu , Peng Qiao , Yong Dou

Recently, 3D Gaussian Splatting (3D-GS) has achieved impressive results in novel view synthesis, demonstrating high fidelity and efficiency. However, it easily exhibits needle-like artifacts, especially when increasing the sampling rate.…

Computer Vision and Pattern Recognition · Computer Science 2024-10-16 Letian Huang , Jie Guo , Jialin Dan , Ruoyu Fu , Shujie Wang , Yuanqi Li , Yanwen Guo

Sparse sampling schemes have the potential to dramatically reduce image acquisition time while simultaneously reducing radiation damage to samples. However, for a sparse sampling scheme to be useful it is important that we are able to…

Computer Vision and Pattern Recognition · Computer Science 2017-03-16 G. M. Dilshan P. Godaliyadda , Dong Hye Ye , Michael D. Uchic , Michael A. Groeber , Gregery T. Buzzard , Charles A. Bouman

Digitizing 3D static scenes and 4D dynamic events from multi-view images has long been a challenge in computer vision and graphics. Recently, 3D Gaussian Splatting (3DGS) has emerged as a practical and scalable reconstruction method,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-18 Marko Mihajlovic , Sergey Prokudin , Siyu Tang , Robert Maier , Federica Bogo , Tony Tung , Edmond Boyer

3D Gaussian splatting (3DGS) has recently emerged as an alternative representation that leverages a 3D Gaussian-based representation and introduces an approximated volumetric rendering, achieving very fast rendering speed and promising…

Computer Vision and Pattern Recognition · Computer Science 2024-08-08 Joo Chan Lee , Daniel Rho , Xiangyu Sun , Jong Hwan Ko , Eunbyung Park

3D visual grounding aims to locate the referred target object in 3D point cloud scenes according to a free-form language description. Previous methods mostly follow a two-stage paradigm, i.e., language-irrelevant detection and cross-modal…

Computer Vision and Pattern Recognition · Computer Science 2023-10-13 Junyu Luo , Jiahui Fu , Xianghao Kong , Chen Gao , Haibing Ren , Hao Shen , Huaxia Xia , Si Liu

Dynamic Magnetic Resonance Imaging (MRI) is known to be a powerful and reliable technique for the dynamic imaging of internal organs and tissues, making it a leading diagnostic tool. A major difficulty in using MRI in this setting is the…

Image and Video Processing · Electrical Eng. & Systems 2023-03-24 Tamir Shor , Tomer Weiss , Dor Noti , Alex Bronstein

Weakly supervised semantic segmentation (WSSS) employing weak forms of labels has been actively studied to alleviate the annotation cost of acquiring pixel-level labels. However, classifiers trained on biased datasets tend to exploit…

Computer Vision and Pattern Recognition · Computer Science 2024-05-29 JuneHyoung Kwon , Eunju Lee , Yunsung Cho , YoungBin Kim

Unsupervised domain adaptation (UDA) has achieved unprecedented success in improving the cross-domain robustness of object detection models. However, existing UDA methods largely ignore the instantaneous data distribution during model…

Computer Vision and Pattern Recognition · Computer Science 2020-03-24 Zongxian Li , Qixiang Ye , Chong Zhang , Jingjing Liu , Shijian Lu , Yonghong Tian