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In this paper, we present an InSphereNet method for the problem of 3D object classification. Unlike previous methods that use points, voxels, or multi-view images as inputs of deep neural network (DNN), the proposed method constructs a…

Computer Vision and Pattern Recognition · Computer Science 2020-01-06 Hui Cao , Haikuan Du , Siyu Zhang , Shen Cai

Cloud segmentation amounts to separating cloud pixels from non-cloud pixels in an image. Current deep learning methods for cloud segmentation suffer from three issues. (a) Constrain on their receptive field due to the fixed size of the…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Yijie Li , Hewei Wang , Jinfeng Xu , Puzhen Wu , Yunzhong Xiao , Shaofan Wang , Soumyabrata Dev

The process of segmenting point cloud data into several homogeneous areas with points in the same region having the same attributes is known as 3D segmentation. Segmentation is challenging with point cloud data due to substantial…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Siddiqui Muhammad Yasir , Hyunsik Ahn

Instance Segmentation, which seeks to obtain both class and instance labels for each pixel in the input image, is a challenging task in computer vision. State-of-the-art algorithms often employ two separate stages, the first one generating…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Jialin Yuan , Chao Chen , Li Fuxin

This study introduces a method for efficiently detecting objects within 3D point clouds using convolutional neural networks (CNNs). Our approach adopts a unique feature-centric voting mechanism to construct convolutional layers that…

Computer Vision and Pattern Recognition · Computer Science 2024-12-05 Tianyi Lyu , Dian Gu , Peiyuan Chen , Yaoting Jiang , Zhenhong Zhang , Huadong Pang , Li Zhou , Yiping Dong

3D point cloud has been widely used in many mobile application scenarios, including autonomous driving and 3D sensing on mobile devices. However, existing 3D point cloud models tend to be large and cumbersome, making them hard to deploy on…

Computer Vision and Pattern Recognition · Computer Science 2024-03-01 Zhiyuan Yang , Yunjiao Zhou , Lihua Xie , Jianfei Yang

Point cloud segmentation and classification are some of the primary tasks in 3D computer vision with applications ranging from augmented reality to robotics. However, processing point clouds using deep learning-based algorithms is quite…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Aadesh Desai , Saagar Parikh , Seema Kumari , Shanmuganathan Raman

In this study, we present an analysis of model-based ensemble learning for 3D point-cloud object classification and detection. An ensemble of multiple model instances is known to outperform a single model instance, but there is little study…

Computer Vision and Pattern Recognition · Computer Science 2019-05-24 Daniel Koguciuk , Łukasz Chechliński , Tarek El-Gaaly

We propose an approach to instance-level image segmentation that is built on top of category-level segmentation. Specifically, for each pixel in a semantic category mask, its corresponding instance bounding box is predicted using a deep…

Computer Vision and Pattern Recognition · Computer Science 2016-05-24 Zifeng Wu , Chunhua Shen , Anton van den Hengel

We present PartNet: a consistent, large-scale dataset of 3D objects annotated with fine-grained, instance-level, and hierarchical 3D part information. Our dataset consists of 573,585 part instances over 26,671 3D models covering 24 object…

Computer Vision and Pattern Recognition · Computer Science 2018-12-07 Kaichun Mo , Shilin Zhu , Angel X. Chang , Li Yi , Subarna Tripathi , Leonidas J. Guibas , Hao Su

Technology to recognize the type of component represented by a point cloud is required in the reconstruction process of an as-built model of a process plant based on laser scanning. The reconstruction process of a process plant through…

Computer Vision and Pattern Recognition · Computer Science 2019-12-30 Hyungki Kim , Duhwan Mun

This paper introduces a novel approach to learning instance segmentation using extreme points, i.e., the topmost, leftmost, bottommost, and rightmost points, of each object. These points are readily available in the modern bounding box…

Computer Vision and Pattern Recognition · Computer Science 2024-06-05 Hyeonjun Lee , Sehyun Hwang , Suha Kwak

Open-vocabulary 3D instance segmentation is cutting-edge for its ability to segment 3D instances without predefined categories. However, progress in 3D lags behind its 2D counterpart due to limited annotated 3D data. To address this, recent…

Computer Vision and Pattern Recognition · Computer Science 2024-04-11 Mi Yan , Jiazhao Zhang , Yan Zhu , He Wang

Deep learning approaches have made tremendous progress in the field of semantic segmentation over the past few years. However, most current approaches operate in the 2D image space. Direct semantic segmentation of unstructured 3D point…

Computer Vision and Pattern Recognition · Computer Science 2019-12-20 Francis Engelmann , Theodora Kontogianni , Alexander Hermans , Bastian Leibe

In contrast to the fully supervised methods using pixel-wise mask labels, box-supervised instance segmentation takes advantage of the simple box annotations, which has recently attracted a lot of research attentions. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Wentong Li , Wenyu Liu , Jianke Zhu , Miaomiao Cui , Xiansheng Hua , Lei Zhang

3D semantic segmentation is a fundamental building block for several scene understanding applications such as autonomous driving, robotics and AR/VR. Several state-of-the-art semantic segmentation models suffer from the part…

Computer Vision and Pattern Recognition · Computer Science 2021-11-17 Anirud Thyagharajan , Benjamin Ummenhofer , Prashant Laddha , Om J Omer , Sreenivas Subramoney

Object recognition using single-point supervision has attracted increasing attention recently. However, the performance gap compared with fully-supervised algorithms remains large. Previous works generated class-agnostic…

Computer Vision and Pattern Recognition · Computer Science 2025-04-11 Pengfei Chen , Xuehui Yu , Xumeng Han , Kuiran Wang , Guorong Li , Lingxi Xie , Zhenjun Han , Jianbin Jiao

LiDAR scanning for surveying applications acquire measurements over wide areas and long distances, which produces large-scale 3D point clouds with significant local density variations. While existing 3D semantic segmentation models conduct…

Computer Vision and Pattern Recognition · Computer Science 2023-07-06 Ryan Faulkner , Luke Haub , Simon Ratcliffe , Ian Reid , Tat-Jun Chin

Most existing 3D instance segmentation methods are derived from 3D semantic segmentation models. However, these indirect approaches suffer from certain limitations. They fail to fully leverage global and local semantic information for…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Lei Pan , Wuyang Luan , Yuan Zheng , Qiang Fu , Junhui Li

PointNet has recently emerged as a popular representation for unstructured point cloud data, allowing application of deep learning to tasks such as object detection, segmentation and shape completion. However, recent works in literature…

Computer Vision and Pattern Recognition · Computer Science 2019-12-13 Vinit Sarode , Xueqian Li , Hunter Goforth , Yasuhiro Aoki , Animesh Dhagat , Rangaprasad Arun Srivatsan , Simon Lucey , Howie Choset