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Point cloud processing is very challenging, as the diverse shapes formed by irregular points are often indistinguishable. A thorough grasp of the elusive shape requires sufficiently contextual semantic information, yet few works devote to…

Computer Vision and Pattern Recognition · Computer Science 2019-09-10 Yongcheng Liu , Bin Fan , Gaofeng Meng , Jiwen Lu , Shiming Xiang , Chunhong Pan

As a dynamic and essential component in the road environment of urban scenarios, vehicles are the most popular investigation targets. To monitor their behavior and extract their geometric characteristics, an accurate and instant measurement…

Computer Vision and Pattern Recognition · Computer Science 2021-02-02 Yan Xia , Yusheng Xu , Cheng Wang , Uwe Stilla

Iterative Closest Point (ICP) solves the rigid point cloud registration problem iteratively in two steps: (1) make hard assignments of spatially closest point correspondences, and then (2) find the least-squares rigid transformation. The…

Computer Vision and Pattern Recognition · Computer Science 2021-03-29 Zi Jian Yew , Gim Hee Lee

The computational power of High-Performance Computing (HPC) systems is constantly increasing, however, their input/output (IO) performance grows relatively slowly, and their storage capacity is also limited. This unbalance presents…

High-quality imaging in photoacoustic computed tomography (PACT) usually requires a high-channel count system for dense spatial sampling around the object to avoid aliasing-related artefacts. To reduce system complexity, various image…

Image and Video Processing · Electrical Eng. & Systems 2024-09-24 Bowei Yao , Shilong Cui , Haizhao Dai , Qing Wu , Youshen Xiao , Fei Gao , Jingyi Yu , Yuyao Zhang , Xiran Cai

Point cloud representation has gained traction due to its efficient memory usage and simplicity in acquisition, manipulation, and storage. However, as point cloud sizes increase, effective down-sampling becomes essential to address the…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Shubham Bhardwaj , Ashwin Vinod , Soumojit Bhattacharya , Aryan Koganti , Aditya Sai Ellendula , Balakrishna Reddy

Coordinate-based Multilayer Perceptron (MLP) networks, despite being capable of learning neural implicit representations, are not performant for internal image synthesis applications. Convolutional Neural Networks (CNNs) are typically used…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Mikolaj Czerkawski , Javier Cardona , Robert Atkinson , Craig Michie , Ivan Andonovic , Carmine Clemente , Christos Tachtatzis

While dynamic Gaussian Splatting has driven significant advances in free-viewpoint video, maintaining its rendering quality with a small memory footprint for efficient streaming transmission still presents an ongoing challenge. Existing…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Yangzhi Ma , Bojun Liu , Wenting Liao , Dong Liu , Zhu Li , Li Li

Implicit Neural Representations (INRs) are a learning-based approach to accelerate Magnetic Resonance Imaging (MRI) acquisitions, particularly in scan-specific settings when only data from the under-sampled scan itself are available.…

Image and Video Processing · Electrical Eng. & Systems 2024-12-11 Yamin Arefeen , Brett Levac , Zach Stoebner , Jonathan Tamir

Point clouds have been recognized as a crucial data structure for 3D content and are essential in a number of applications such as virtual and mixed reality, autonomous driving, cultural heritage, etc. In this paper, we propose a set of…

Computer Vision and Pattern Recognition · Computer Science 2020-06-25 Maurice Quach , Giuseppe Valenzise , Frederic Dufaux

We present a learning-based method for interpolating and manipulating 3D shapes represented as point clouds, that is explicitly designed to preserve intrinsic shape properties. Our approach is based on constructing a dual encoding space…

Computer Vision and Pattern Recognition · Computer Science 2021-05-07 Marie-Julie Rakotosaona , Maks Ovsjanikov

Recently, 3D Gaussian splatting (3D-GS) has gained popularity in novel-view scene synthesis. It addresses the challenges of lengthy training times and slow rendering speeds associated with Neural Radiance Fields (NeRFs). Through rapid,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Sharath Girish , Kamal Gupta , Abhinav Shrivastava

Point Cloud Registration (PCR) is a critical and challenging task in computer vision. One of the primary difficulties in PCR is identifying salient and meaningful points that exhibit consistent semantic and geometric properties across…

Computer Vision and Pattern Recognition · Computer Science 2024-08-29 Qianliang Wu , Yaqing Ding , Lei Luo , Haobo Jiang , Shuo Gu , Chuanwei Zhou , Jin Xie , Jian Yang

Deep learning with 3D data has progressed significantly since the introduction of convolutional neural networks that can handle point order ambiguity in point cloud data. While being able to achieve good accuracies in various scene…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Zhiyuan Zhang , Binh-Son Hua , Sai-Kit Yeung

The following three factors restrict the application of existing low-light image enhancement methods: unpredictable brightness degradation and noise, inherent gap between metric-favorable and visual-friendly versions, and the limited paired…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Shuzhou Yang , Moxuan Ding , Yanmin Wu , Zihan Li , Jian Zhang

This work addresses the problem of novel view synthesis in diverse scenes from small collections of RGB images. We propose ERUPT (Efficient Rendering with Unposed Patch Transformer) a state-of-the-art scene reconstruction model capable of…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Maxim V. Shugaev , Vincent Chen , Maxim Karrenbach , Kyle Ashley , Bridget Kennedy , Naresh P. Cuntoor

Efficient point cloud compression is essential for applications like virtual and mixed reality, autonomous driving, and cultural heritage. This paper proposes a deep learning-based inter-frame encoding scheme for dynamic point cloud…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Anique Akhtar , Zhu Li , Geert Van der Auwera

3D perception in point clouds is transforming the perception ability of future intelligent machines. Point cloud algorithms, however, are plagued by irregular memory accesses, leading to massive inefficiencies in the memory sub-system,…

Hardware Architecture · Computer Science 2022-04-25 Yu Feng , Gunnar Hammonds , Yiming Gan , Yuhao Zhu

Existing depth estimation methods are fundamentally limited to predicting depth on discrete image grids. Such representations restrict their scalability to arbitrary output resolutions and hinder the geometric detail recovery. This paper…

Computer Vision and Pattern Recognition · Computer Science 2026-01-07 Hao Yu , Haotong Lin , Jiawei Wang , Jiaxin Li , Yida Wang , Xueyang Zhang , Yue Wang , Xiaowei Zhou , Ruizhen Hu , Sida Peng

Static LiDAR scanners produce accurate, dense, colored point clouds, but often contain obtrusive artifacts which makes them ill-suited for direct display. We propose an efficient method to render photorealistic images of such scans without…

Computer Vision and Pattern Recognition · Computer Science 2025-08-21 Joni Vanherck , Brent Zoomers , Tom Mertens , Lode Jorissen , Nick Michiels
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