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Although recent point cloud analysis achieves impressive progress, the paradigm of representation learning from a single modality gradually meets its bottleneck. In this work, we take a step towards more discriminative 3D point cloud…

计算机视觉与模式识别 · 计算机科学 2022-10-11 Xu Yan , Heshen Zhan , Chaoda Zheng , Jiantao Gao , Ruimao Zhang , Shuguang Cui , Zhen Li

Point cloud analysis is an area of increasing interest due to the development of 3D sensors that are able to rapidly measure the depth of scenes accurately. Unfortunately, applying deep learning techniques to perform point cloud analysis is…

计算机视觉与模式识别 · 计算机科学 2021-01-05 Junming Zhang , Ming-Yuan Yu , Ram Vasudevan , Matthew Johnson-Roberson

The goal of object pose estimation is to visually determine the pose of a specific object in the RGB-D input. Unfortunately, when faced with new categories, both instance-based and category-based methods are unable to deal with unseen…

计算机视觉与模式识别 · 计算机科学 2024-03-13 Bowen Liu , Wei Liu , Siang Chen , Pengwei Xie , Guijin Wang

The conventional pose estimation of a 3D object usually requires the knowledge of the 3D model of the object. Even with the recent development in convolutional neural networks (CNNs), a 3D model is often necessary in the final estimation.…

机器人学 · 计算机科学 2019-01-01 Zhongang Cai , Cunjun Yu , Quang-Cuong Pham

Recently, learning frameworks have shown the capability of inferring the accurate shape, pose, and texture of an object from a single RGB image. However, current methods are trained on image collections of a single category in order to…

计算机视觉与模式识别 · 计算机科学 2021-10-22 Alessandro Simoni , Stefano Pini , Roberto Vezzani , Rita Cucchiara

This paper introduces a novel self-supervised learning framework for enhancing 3D perception in autonomous driving scenes. Specifically, our approach, namely NCLR, focuses on 2D-3D neural calibration, a novel pretext task that estimates the…

计算机视觉与模式识别 · 计算机科学 2025-08-21 Yifan Zhang , Junhui Hou , Siyu Ren , Jinjian Wu , Yixuan Yuan , Guangming Shi

In this paper we explore the recent topic of point cloud completion, guided by an auxiliary image. We show how it is possible to effectively combine the information from the two modalities in a localized latent space, thus avoiding the need…

计算机视觉与模式识别 · 计算机科学 2022-09-21 Emanuele Aiello , Diego Valsesia , Enrico Magli

The task of three-dimensional (3D) human pose estimation from a single image can be divided into two parts: (1) Two-dimensional (2D) human joint detection from the image and (2) estimating a 3D pose from the 2D joints. Herein, we focus on…

计算机视觉与模式识别 · 计算机科学 2018-03-23 Yasunori Kudo , Keisuke Ogaki , Yusuke Matsui , Yuri Odagiri

3D point cloud segmentation is an important function that helps robots understand the layout of their surrounding environment and perform tasks such as grasping objects, avoiding obstacles, and finding landmarks. Current segmentation…

计算机视觉与模式识别 · 计算机科学 2021-03-17 Jingdao Chen , Zsolt Kira , Yong K. Cho

3D point cloud analysis has drawn a lot of research attention due to its wide applications. However, collecting massive labelled 3D point cloud data is both time-consuming and labor-intensive. This calls for data-efficient learning methods.…

计算机视觉与模式识别 · 计算机科学 2023-01-23 Fayao Liu , Guosheng Lin , Chuan-Sheng Foo , Chaitanya K. Joshi , Jie Lin

In view of the difficulty in reconstructing object details in point cloud completion, we propose a shape prior learning method for object completion. The shape priors include geometric information in both complete and the partial point…

计算机视觉与模式识别 · 计算机科学 2021-07-16 Xiaogang Wang , Marcelo H Ang , Gim Hee Lee

This paper tries to address a fundamental question in point cloud self-supervised learning: what is a good signal we should leverage to learn features from point clouds without annotations? To answer that, we introduce a point cloud…

计算机视觉与模式识别 · 计算机科学 2023-05-16 Xiaoyu Tian , Haoxi Ran , Yue Wang , Hang Zhao

We show that denoising of 3D point clouds can be learned unsupervised, directly from noisy 3D point cloud data only. This is achieved by extending recent ideas from learning of unsupervised image denoisers to unstructured 3D point clouds.…

计算机视觉与模式识别 · 计算机科学 2019-10-21 Pedro Hermosilla , Tobias Ritschel , Timo Ropinski

In contrast to the literature where local patterns in 3D point clouds are captured by customized convolutional operators, in this paper we study the problem of how to effectively and efficiently project such point clouds into a 2D image…

计算机视觉与模式识别 · 计算机科学 2020-10-09 Yecheng Lyu , Xinming Huang , Ziming Zhang

Most deep pose estimation methods need to be trained for specific object instances or categories. In this work we propose a completely generic deep pose estimation approach, which does not require the network to have been trained on…

计算机视觉与模式识别 · 计算机科学 2019-08-06 Yang Xiao , Xuchong Qiu , Pierre-Alain Langlois , Mathieu Aubry , Renaud Marlet

Humans are able to perform fast and accurate object pose estimation even under severe occlusion by exploiting learned object model priors from everyday life. However, most recently proposed pose estimation algorithms neglect to utilize the…

计算机视觉与模式识别 · 计算机科学 2019-12-23 Peiyu Yu , Yongming Rao , Jiwen Lu , Jie Zhou

We present a method that detects boundaries of parts in 3D shapes represented as point clouds. Our method is based on a graph convolutional network architecture that outputs a probability for a point to lie in an area that separates two or…

计算机视觉与模式识别 · 计算机科学 2020-07-16 Marios Loizou , Melinos Averkiou , Evangelos Kalogerakis

Current state-of-the-art methods cast monocular 3D human pose estimation as a learning problem by training neural networks on large data sets of images and corresponding skeleton poses. In contrast, we propose an approach that can exploit…

计算机视觉与模式识别 · 计算机科学 2020-10-14 Simon Jenni , Paolo Favaro

We present a convolutional network capable of inferring a 3D representation of a previously unseen object given a single image of this object. Concretely, the network can predict an RGB image and a depth map of the object as seen from an…

计算机视觉与模式识别 · 计算机科学 2016-08-03 Maxim Tatarchenko , Alexey Dosovitskiy , Thomas Brox

Learning to reconstruct 3D shapes using 2D images is an active research topic, with benefits of not requiring expensive 3D data. However, most work in this direction requires multi-view images for each object instance as training…

计算机视觉与模式识别 · 计算机科学 2021-07-14 Bo Peng , Wei Wang , Jing Dong , Tieniu Tan