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In this paper, we propose a pipeline to generate 3D point cloud of an object from a single-view RGB image. Most previous work predict the 3D point coordinates from single RGB images directly. We decompose this problem into depth estimation…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Wei Zeng , Sezer Karaoglu , Theo Gevers

Quantifying the dissimilarity between two unstructured 3D point clouds is a challenging task, with existing metrics often relying on measuring the distance between corresponding points that can be either inefficient or ineffective. In this…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Siyu Ren , Junhui Hou

Convolutional Neural Networks (CNNs) have emerged as a powerful strategy for most object detection tasks on 2D images. However, their power has not been fully realised for detecting 3D objects in point clouds directly without converting…

Computer Vision and Pattern Recognition · Computer Science 2019-12-03 Mingtao Feng , Syed Zulqarnain Gilani , Yaonan Wang , Liang Zhang , Ajmal Mian

An average healthy person does not perceive the world in just black and white. Moreover, the perceived world is not composed of pixels and through vision humans perceive structures. However, the acquisition and display systems discretize…

Image and Video Processing · Electrical Eng. & Systems 2018-11-26 Dogancan Temel , Ghassan AlRegib

Most existing approaches for point cloud normal estimation aim to locally fit a geometric surface and calculate the normal from the fitted surface. Recently, learning-based methods have adopted a routine of predicting point-wise weights to…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Hang Du , Xuejun Yan , Jingjing Wang , Di Xie , Shiliang Pu

Point cloud registration is a fundamental task for estimating rigid transformations between point clouds. Previous studies have used geometric information for extracting features, matching and estimating transformation. Recently, owing to…

Computer Vision and Pattern Recognition · Computer Science 2024-08-22 Congjia Chen , Xiaoyu Jia , Yanhong Zheng , Yufu Qu

Kirilov et al (2019) develop a metric, called Panoptic Quality (PQ), to evaluate image segmentation methods. The metric is based on a confusion table, and compares a predicted to a ground truth segmentation. The only non straightforward…

Computer Vision and Pattern Recognition · Computer Science 2022-12-29 Maarten Marx

We study full-reference image quality assessment from a machine-centric perspective, where images are evaluated by how well they preserve information for downstream models. We formulate machine-oriented quality as a latent machine utility…

Image and Video Processing · Electrical Eng. & Systems 2026-05-12 Feng Ding , Haisheng Fu , Jie Liang , Qihan Xu , Siyu Zhu , Jingning Han

Recently, cross-source point cloud registration from different sensors has become a significant research focus. However, traditional methods confront challenges due to the varying density and structure of cross-source point clouds. In order…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Yu Wang , Shuhui Bu , Lin Chen , Yifei Dong , Kun Li , Xuefeng Cao , Ke Li

We present a neural-network-based architecture for 3D point cloud denoising called neural projection denoising (NPD). In our previous work, we proposed a two-stage denoising algorithm, which first estimates reference planes and follows by…

Computer Vision and Pattern Recognition · Computer Science 2019-04-10 Chaojing Duan , Siheng Chen , Jelena Kovacevic

Point cloud data is pivotal in applications like autonomous driving, virtual reality, and robotics. However, its substantial volume poses significant challenges in storage and transmission. In order to obtain a high compression ratio,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Xie Liang , Gao Wei , Zhenghui Ming , Li Ge

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…

Computer Vision and Pattern Recognition · Computer Science 2024-04-15 Haipeng Wang

Point cloud segmentation is a fundamental task in 3D scene understanding. Its progress is constrained by the high cost and time required for dense 3D annotations, making labeled samples difficult to obtain. Beyond annotation scarcity,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-29 Thenukan Pathmanathan , Kanchan Keisham , Thangarajah Akilan

In autonomous vehicles or robots, point clouds from LiDAR can provide accurate depth information of objects compared with 2D images, but they also suffer a large volume of data, which is inconvenient for data storage or transmission. In…

Robotics · Computer Science 2021-09-17 Sukai Wang , Jianhao Jiao , Peide Cai , Ming Liu

3D scene understanding from point clouds plays a vital role for various robotic applications. Unfortunately, current state-of-the-art methods use separate neural networks for different tasks like object detection or room layout estimation.…

Computer Vision and Pattern Recognition · Computer Science 2022-01-11 Xiaoxue Chen , Hao Zhao , Guyue Zhou , Ya-Qin Zhang

Parallel coordinate plots (PCPs) are a prevalent method to interpret the relationship between the control parameters and metrics. PCPs deliver such an interpretation by color gradation based on a single metric. However, it is challenging to…

Human-Computer Interaction · Computer Science 2025-07-08 Chisa Mori , Shuhei Watanabe , Masaki Onishi , Takayuki Itoh

Automatic synthesis of high quality 3D shapes is an ongoing and challenging area of research. While several data-driven methods have been proposed that make use of neural networks to generate 3D shapes, none of them reach the level of…

Computer Vision and Pattern Recognition · Computer Science 2019-06-28 Isaak Lim , Moritz Ibing , Leif Kobbelt

3D model generation from single 2D RGB images is a challenging and actively researched computer vision task. Various techniques using conventional network architectures have been proposed for the same. However, the body of research work is…

Computer Vision and Pattern Recognition · Computer Science 2021-06-30 Abdul Mueed Hafiz , Rouf Ul Alam Bhat , Shabir Ahmad Parah , M. Hassaballah

In robotics perception, numerous tasks rely on point cloud registration. However, currently there is no method that can automatically detect misaligned point clouds reliably and without environment-specific parameters. We propose "CorAl",…

Robotics · Computer Science 2021-09-22 Daniel Adolfsson , Martin Magnusson , Qianfang Liao , Achim J. Lilienthal , Henrik Andreasson

The Geometry-based Point Cloud Compression (G-PCC) has been developed by the Moving Picture Experts Group to compress point clouds. In its lossy mode, the reconstructed point cloud by G-PCC often suffers from noticeable distortions due to…

Image and Video Processing · Electrical Eng. & Systems 2024-02-20 Dingquan Li , Kede Ma , Jing Wang , Ge Li