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We present RoarNet, a new approach for 3D object detection from a 2D image and 3D Lidar point clouds. Based on two-stage object detection framework with PointNet as our backbone network, we suggest several novel ideas to improve 3D object…

Computer Vision and Pattern Recognition · Computer Science 2018-11-12 Kiwoo Shin , Youngwook Paul Kwon , Masayoshi Tomizuka

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…

Computer Vision and Pattern Recognition · Computer Science 2019-12-23 Peiyu Yu , Yongming Rao , Jiwen Lu , Jie Zhou

Aerial image registration or matching is a geometric process of aligning two aerial images captured in different environments. Estimating the precise transformation parameters is hindered by various environments such as time, weather, and…

Computer Vision and Pattern Recognition · Computer Science 2021-07-20 Myeong-Seok Oh , Yong-Ju Lee , Seong-Whan Lee

We present UniPlane, a novel method that unifies plane detection and reconstruction from posed monocular videos. Unlike existing methods that detect planes from local observations and associate them across the video for the final…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Yuzhong Huang , Chen Liu , Ji Hou , Ke Huo , Shiyu Dong , Fred Morstatter

Reconstructing accurate 3D models of large-scale real-world scenes from unstructured, in-the-wild imagery remains a core challenge in computer vision, especially when the input views have little or no overlap. In such cases, existing…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Tamir Cohen , Leo Segre , Shay Shomer-Chai , Shai Avidan , Hadar Averbuch-Elor

Ground-state 3D geometries of molecules are essential for many molecular analysis tasks. Modern quantum mechanical methods can compute accurate 3D geometries but are computationally prohibitive. Currently, an efficient alternative to…

Chemical Physics · Physics 2023-05-24 Zhao Xu , Yaochen Xie , Youzhi Luo , Xuan Zhang , Xinyi Xu , Meng Liu , Kaleb Dickerson , Cheng Deng , Maho Nakata , Shuiwang Ji

Estimating depth from a monocular image is an ill-posed problem: when the camera projects a 3D scene onto a 2D plane, depth information is inherently and permanently lost. Nevertheless, recent work has shown impressive results in estimating…

Computer Vision and Pattern Recognition · Computer Science 2021-12-13 Jagpreet Chawla , Nikhil Thakurdesai , Anuj Godase , Md Reza , David Crandall , Soon-Heung Jung

A novel, adaptive ground-aware, and cost-effective 3D Object Detection pipeline is proposed. The ground surface representation introduced in this paper, in comparison to its uni-planar counterparts (methods that model the surface of a whole…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Arun CS Kumar , Disha Ahuja , Ashwath Aithal

Monocular depth estimation has been a popular area of research for several years, especially since self-supervised networks have shown increasingly good results in bridging the gap with supervised and stereo methods. However, these…

Computer Vision and Pattern Recognition · Computer Science 2022-02-25 Daniel Braun , Olivier Morel , Pascal Vasseur , Cédric Demonceaux

3D point cloud segmentation remains challenging for structureless and textureless regions. We present a new unified point-based framework for 3D point cloud segmentation that effectively optimizes pixel-level features, geometrical…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Hung-Yueh Chiang , Yen-Liang Lin , Yueh-Cheng Liu , Winston H. Hsu

Modern digital engineering design process commonly involves expensive repeated simulations on varying three-dimensional (3D) geometries. The efficient prediction capability of neural networks (NNs) makes them a suitable surrogate to provide…

Computational Engineering, Finance, and Science · Computer Science 2024-06-17 Junyan He , Seid Koric , Diab Abueidda , Ali Najafi , Iwona Jasiuk

As the basic task of point cloud analysis, classification is fundamental but always challenging. To address some unsolved problems of existing methods, we propose a network that captures geometric features of point clouds for better…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Shi Qiu , Saeed Anwar , Nick Barnes

Point normal, as an intrinsic geometric property of 3D objects, not only serves conventional geometric tasks such as surface consolidation and reconstruction, but also facilitates cutting-edge learning-based techniques for shape analysis…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Haoran Zhou , Honghua Chen , Yingkui Zhang , Mingqiang Wei , Haoran Xie , Jun Wang , Tong Lu , Jing Qin , Xiao-Ping Zhang

Indoor 3D object detection is an essential task in single image scene understanding, impacting spatial cognition fundamentally in visual reasoning. Existing works on 3D object detection from a single image either pursue this goal through…

Computer Vision and Pattern Recognition · Computer Science 2023-11-21 Yanjun Liu , Wenming Yang

Orienting surface normals correctly and consistently is a fundamental problem in geometry processing. Applications such as visualization, feature detection, and geometry reconstruction often rely on the availability of correctly oriented…

Graphics · Computer Science 2019-04-11 Sebastian Ochmann , Reinhard Klein

Accurate maps of Greenland's subglacial bed are essential for sea-level projections, but radar observations are sparse and uneven. We introduce GraphTopoNet, a graph-learning framework that fuses heterogeneous supervision and explicitly…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Bayu Adhi Tama , Homayra Alam , Mostafa Cham , Omar Faruque , Jianwu Wang , Vandana Janeja

Estimating depth from a single RGB image is an ill-posed and inherently ambiguous problem. State-of-the-art deep learning methods can now estimate accurate 2D depth maps, but when the maps are projected into 3D, they lack local detail and…

Computer Vision and Pattern Recognition · Computer Science 2017-12-05 Jun Li , Reinhard Klein , Angela Yao

This work introduces a new approach for joint detection of centerlines based on image data by localizing the features jointly in 2D and 3D. In contrast to existing work that focuses on detection of visual cues, we explore feature extraction…

Computer Vision and Pattern Recognition · Computer Science 2023-02-07 David Paz , Srinidhi Kalgundi Srinivas , Yunchao Yao , Henrik I. Christensen

In this paper, we present a spatial rectifier to estimate surface normals of tilted images. Tilted images are of particular interest as more visual data are captured by arbitrarily oriented sensors such as body-/robot-mounted cameras.…

Computer Vision and Pattern Recognition · Computer Science 2022-07-15 Tien Do , Khiem Vuong , Stergios I. Roumeliotis , Hyun Soo Park

State-of-the-art methods for driving-scene LiDAR-based perception (including point cloud semantic segmentation, panoptic segmentation and 3D detection, \etc) often project the point clouds to 2D space and then process them via 2D…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Xinge Zhu , Hui Zhou , Tai Wang , Fangzhou Hong , Wei Li , Yuexin Ma , Hongsheng Li , Ruigang Yang , Dahua Lin