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3D point clouds deep learning is a promising field of research that allows a neural network to learn features of point clouds directly, making it a robust tool for solving 3D scene understanding tasks. While recent works show that point…

计算机视觉与模式识别 · 计算机科学 2022-03-22 Zhiyuan Zhang , Binh-Son Hua , Sai-Kit Yeung

Self-attention mechanism recently achieves impressive advancement in Natural Language Processing (NLP) and Image Processing domains. And its permutation invariance property makes it ideally suitable for point cloud processing. Inspired by…

计算机视觉与模式识别 · 计算机科学 2021-04-28 Xian-Feng Han , Zhang-Yue He , Jia Chen , Guo-Qiang Xiao

This paper proposes a novel point-cloud-based place recognition system that adopts a deep learning approach for feature extraction. By using a convolutional neural network pre-trained on color images to extract features from a range image…

计算机视觉与模式识别 · 计算机科学 2018-10-24 Ting Sun , Ming Liu , Haoyang Ye , Dit-Yan Yeung

Point clouds are often sparse and incomplete, which imposes difficulties for real-world applications. Existing shape completion methods tend to generate rough shapes without fine-grained details. Considering this, we introduce a two-branch…

计算机视觉与模式识别 · 计算机科学 2021-08-27 Xiaogang Wang , Marcelo H Ang , Gim Hee Lee

Although accurate and fast point cloud classification is a fundamental task in 3D applications, it is difficult to achieve this purpose due to the irregularity and disorder of point clouds that make it challenging to achieve effective and…

计算机视觉与模式识别 · 计算机科学 2022-03-03 Dening Lu , Qian Xie , Linlin Xu , Jonathan Li

Point cloud completion task aims to predict the missing part of incomplete point clouds and generate complete point clouds with details. In this paper, we propose a novel point cloud completion network, namely CompleteDT. Specifically,…

计算机视觉与模式识别 · 计算机科学 2022-06-13 Jun Li , Shangwei Guo , Shaokun Han

Point cloud completion is a generation and estimation issue derived from the partial point clouds, which plays a vital role in the applications in 3D computer vision. The progress of deep learning (DL) has impressively improved the…

计算机视觉与模式识别 · 计算机科学 2023-01-02 Ben Fei , Weidong Yang , Wenming Chen , Zhijun Li , Yikang Li , Tao Ma , Xing Hu , Lipeng Ma

The growing size of point clouds enlarges consumptions of storage, transmission, and computation of 3D scenes. Raw data is redundant, noisy, and non-uniform. Therefore, simplifying point clouds for achieving compact, clean, and uniform…

计算机视觉与模式识别 · 计算机科学 2022-03-18 Yuanqi Li , Jianwei Guo , Xinran Yang , Shun Liu , Jie Guo , Xiaopeng Zhang , Yanwen Guo

Each year thousands of people suffer from various types of cranial injuries and require personalized implants whose manual design is expensive and time-consuming. Therefore, an automatic, dedicated system to increase the availability of…

图像与视频处理 · 电气工程与系统科学 2024-05-22 Marek Wodzinski , Mateusz Daniol , Daria Hemmerling , Miroslaw Socha

Semantic parsing of large-scale 3D point clouds is an important research topic in computer vision and remote sensing fields. Most existing approaches utilize hand-crafted features for each modality independently and combine them in a…

计算机视觉与模式识别 · 计算机科学 2017-07-24 Fangyu Liu , Shuaipeng Li , Liqiang Zhang , Chenghu Zhou , Rongtian Ye , Yuebin Wang , Jiwen Lu

Point cloud completion aims to predict complete shape from its partial observation. Current approaches mainly consist of generation and refinement stages in a coarse-to-fine style. However, the generation stage often lacks robustness to…

计算机视觉与模式识别 · 计算机科学 2022-11-15 Mingye Xu , Yali Wang , Yihao Liu , Tong He , Yu Qiao

Point clouds denote a prominent solution for the representation of 3D photo-realistic content in immersive applications. Similarly to other imaging modalities, quality predictions for point cloud contents are vital for a wide range of…

多媒体 · 计算机科学 2024-08-14 Evangelos Alexiou , Xuemei Zhou , Irene Viola , Pablo Cesar

Scanning real-life scenes with modern registration devices typically gives incomplete point cloud representations, primarily due to the limitations of partial scanning, 3D occlusions, and dynamic light conditions. Recent works on processing…

计算机视觉与模式识别 · 计算机科学 2024-04-15 Haipeng Wang

The success of deep learning methods led to significant breakthroughs in 3-D point cloud processing tasks with applications in remote sensing. Existing methods utilize convolutions that have some limitations, as they assume a uniform input…

计算机视觉与模式识别 · 计算机科学 2021-02-23 Dimple A Shajahan , Mukund Varma T , Ramanathan Muthuganapathy

With the rapid advancement of 3D sensing technologies, obtaining 3D shape information of objects has become increasingly convenient. Lidar technology, with its capability to accurately capture the 3D information of objects at long…

计算机视觉与模式识别 · 计算机科学 2024-04-25 Weixiao Gao , Ravi Peters , Jantien Stoter

Implicit Neural Point Cloud (INPC) is a recent hybrid representation that combines the expressiveness of neural fields with the efficiency of point-based rendering, achieving state-of-the-art image quality in novel view synthesis. However,…

Implicit neural networks have emerged as a crucial technology in 3D surface reconstruction. To reconstruct continuous surfaces from discrete point clouds, encoding the input points into regular grid features (plane or volume) has been…

计算机视觉与模式识别 · 计算机科学 2024-01-05 Shengtao Li , Ge Gao , Yudong Liu , Yu-Shen Liu , Ming Gu

Point clouds are unstructured and unordered data, as opposed to images. Thus, most machine learning approach developed for image cannot be directly transferred to point clouds. In this paper, we propose a generalization of discrete…

计算机视觉与模式识别 · 计算机科学 2020-02-20 Alexandre Boulch

The task of point cloud upsampling aims to acquire dense and uniform point sets from sparse and irregular point sets. Although significant progress has been made with deep learning models, state-of-the-art methods require ground-truth dense…

计算机视觉与模式识别 · 计算机科学 2022-06-14 Xinhai Liu , Xinchen Liu , Yu-Shen Liu , Zhizhong Han

We are interested in reconstructing the mesh representation of object surfaces from point clouds. Surface reconstruction is a prerequisite for downstream applications such as rendering, collision avoidance for planning, animation, etc.…

计算机视觉与模式识别 · 计算机科学 2020-10-01 Minghua Liu , Xiaoshuai Zhang , Hao Su