Filters








3,182 Hits in 5.3 sec

Calibration of a Panoramic 3D Reconstruction System

Diana-Margarita Córdova-Esparza, José-Joel González-Barbosa, Juan Terven, Juan Hurtado-Ramos, César-Cruz Almaraz-Cabral
2019 IET Image Processing  
This paper presents a calibration method for a panoramic 3D reconstruction system based on pattern projection composed of two modules.  ...  Owing to their large field of view, a catadioptric imaging system is widely used in several research areas, including robot navigation, surveillance, and three-dimensional (3D) reconstruction.  ...  We also want to thank CICATA-IPN, Querétaro for providing the facilities and support during the development of this project.  ... 
doi:10.1049/iet-ipr.2018.5365 fatcat:eez73gfwjfb6xmrx6eq7xg6f54

Single-Shot is Enough: Panoramic Infrastructure Based Calibration of Multiple Cameras and 3D LiDARs [article]

Chuan Fang, Shuai Ding, Zilong Dong, Honghua Li, Siyu Zhu, Ping Tan
2021 arXiv   pre-print
The calibration of multi-modal sensors is crucial for a system to properly function, but it remains tedious and impractical for mass production.  ...  In this paper, we propose a single-shot solution for calibrating extrinsic transformations among multiple cameras and 3D LiDARs.  ...  Panoramic multi-sensor calibration Panoramic infrastructures are also proposed in literature for multi-sensor calibration, but they only calibrate systems with single type of sensors, either a multi-camera  ... 
arXiv:2103.12941v2 fatcat:fu74gukkwvb2pizdlj3yoonuo4

Three-Dimensional Reconstruction of Indoor and Outdoor Environments Using a Stereo Catadioptric System

Diana-Margarita Córdova-Esparza, Juan Terven, Julio-Alejandro Romero-González, Alfonso Ramírez-Pedraza
2020 Applied Sciences  
In this work, we present a panoramic 3D stereo reconstruction system composed of two catadioptric cameras.  ...  Each one consists of a CCD camera and a parabolic convex mirror that allows the acquisition of catadioptric images.  ...  To perform 3D reconstruction with a stereo system, we need to find matching points on the set of cameras.  ... 
doi:10.3390/app10248851 fatcat:fq72fpwu3vdqzl7siyqopj5w2q

Rail Sensor: A Mobile Lidar System for 3D Archiving the Bas-reliefs in Angkor Wat

Bo Zheng, Takeshi Oishi, Katsushi Ikeuchi
2015 IPSJ Transactions on Computer Vision and Applications  
This paper presents a mobile Lidar system for efficiently and accurately capturing the 3D shape of the Bas-reliefs in Angkor Wat.  ...  The sensor system consists of two main components: 1) a panoramic camera and 2) a 2D 360-degree laser line scanner, which moves slowly on the rails parallel to the reliefs.  ...  Camera-only system One of the most important works is the multi-stereo based 3D reconstruction using only RBG cameras.  ... 
doi:10.2197/ipsjtcva.7.59 fatcat:ycrkndf7pvcytiigkpduq5rxm4

Evolutionary-based 3D reconstruction using an uncalibrated stereovision system: application of building a panoramic object view

Alain Koch, Albert Dipanda, Claire Bourgeois République
2010 Multimedia tools and applications  
Keywords Panoramic 3D reconstruction . Evolutionary algorithm . Uncalibrated system Introduction Panoramic 3D reconstruction is a recent area of research which began about 10 years ago.  ...  In this paper, we propose an original evolutionary-based method for 3D panoramic reconstruction from an uncalibrated stereovision system (USS).  ...  The goal of panoramic 3D reconstruction is to achieve a global internal representation of a scene or a surrounding view of an object. 3D panoramic reconstruction methods can be divided into two broad classes  ... 
doi:10.1007/s11042-010-0657-1 fatcat:kx5zzshlsrdzhjuehpeabj2xye

Multi-Spectral Panoramic Sensor

Olivier Romain, Thomas Ea, Claude Gastaud, Patrick Garda
2000 IAPR International Workshop on Machine Vision Applications  
Real experiments demonstrate the feasibility of this new panoramic sensor.  ...  This paper describes a new stereoscopic panoramic sensor to achieve this task.  ...  In this paper we will first present the principle of this new stereoscopic panoramic sensor, then the faithful color acquisition and 3D reconstruction.  ... 
dblp:conf/mva/RomainEGG00 fatcat:gr4sch6brje7fpkfsyihpnhrtq

A Novel Method for Extrinsic Calibration of Multiple RGB-D Cameras Using Descriptor-Based Patterns [article]

Hang Liu, Hengyu Li, Xiahua Liu, Jun Luo, Shaorong Xie, Yu Sun
2018 arXiv   pre-print
This letter presents a novel method to estimate the relative poses between RGB-D cameras with minimal overlapping fields of view in a panoramic RGB-D camera system.  ...  Integrating the matched 2D keypoints with corresponding depth values, a set of 3D matched keypoints are constructed to calibrate multiple RGB-D cameras.  ...  Fig. 7 . 7 Reconstruction of a bedroom (3.3 m × 3 m) (a), and a living room (9 m × 3.5 m) using only one output frame from the proposed panoramic 3D vision system.  ... 
arXiv:1807.07856v4 fatcat:flilj4v4mze2rmlw4cw4i56kzi

3D volumetric reconstruction with a catadioptric stereovision sensor

N. Ragot, R. Rossi, X. Savatier, J-Y. Ertaud, B. Mazari
2008 2008 IEEE International Symposium on Industrial Electronics  
A stereoscopic catadioptric sensor and associated algorithms are presented to provide a relevant solution to the problem of 3D reconstruction of unknown environments.  ...  The 3D reconstruction adopted is an adaptation of the classic volumetric scene reconstruction technique.  ...  ACKNOWLEDGMENT This study took place in an OmniViss European InterregIIIA program (Embedded Omnidirectional Vision System for Environment Reconstruction and Analysis).  ... 
doi:10.1109/isie.2008.4677128 fatcat:iyqtcpuq7nhbrjkvvmy4vkb7sa

Panoramic/Dual-Surface Digital Image Correlation Measurement Using a Single Camera

Kaiyu Zhu, Bing Pan
2022 Sensors  
Further, with the speckle patterns prefabricated on the mirrors, reflection transformation matrices are obtained and applied to transform all reconstructed surfaces into a common world coordinate system  ...  For validation, a high-resolution smartphone camera and an industrial camera were, respectively, used to construct mirror-assisted single-camera panoramic DIC systems.  ...  With a regular calibration target, the single-camera pseudo stereovision systems were carefully calibrated.  ... 
doi:10.3390/s22093266 pmid:35590956 pmcid:PMC9104215 fatcat:wkhixagnzfgexdwxpurqxqicce

SYSTEM DESIGN, CALIBRATION AND PERFORMANCE ANALYSIS OF A NOVEL 360° STEREO PANORAMIC MOBILE MAPPING SYSTEM

S. Blaser, S. Nebiker, S. Cavegn
2017 ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
We successfully implemented a rigorous sensor and system calibration procedure, which allows calibrating all stereo systems with a superior accuracy compared to that of previous work.  ...  Furthermore, we automatically reconstructed a 3D city model of our study area by employing all captured and georeferenced mobile mapping imagery.  ...  ACKNOWLEDGEMENTS This work was financially supported by the Swiss Commission for Technology and Innovation CTI as part of the infraVIS project that was performed in collaboration with iNovitas AG.  ... 
doi:10.5194/isprs-annals-iv-1-w1-207-2017 fatcat:hamhvhd5knhtxbr5zeg3rf3cpu

Panoramic Image and Three-Axis Laser Scanner Integrated Approach for Indoor 3D Mapping

Pengcheng Zhao, Qingwu Hu, Shaohua Wang, Mingyao Ai, Qingzhou Mao
2018 Remote Sensing  
Finally, the 3D point clouds and panoramic images of the scene are reconstructed from two tilt-mounted laser scanners and the panoramic camera by synchronization of the position and attitude of the carrier  ...  The experiment was carried out in a five-story library using the proposed prototype system; the results demonstrate accuracies of up to 3 cm for 2D maps, and up to 5 cm for 3D maps, and the produced point  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/rs10081269 fatcat:kzl4ztujvnaxdbnl2u22mkq6fi

A Novel Method for Extrinsic Calibration of Multiple RGB-D Cameras Using Descriptor-Based Patterns

Hang Liu, Hengyu Li, Xiahua Liu, Jun Luo, Shaorong Xie, Yu Sun
2019 Sensors  
Integrating the matched 2D keypoints with corresponding depth values, a set of 3D matched keypoints are constructed to calibrate multiple RGB-D cameras.  ...  This calibration problem is relevant to applications such as indoor 3D mapping and robot navigation that can benefit from a wider field of view using multiple RGB-D cameras.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/s19020349 fatcat:qjwyj6u5qjaqxldmgauwipc6zu

The Relocalization of SLAM Tracking Based on Spherical Cameras

Qingling Chang, Qiang Liu, Xin Yang, Huang Yajiang, Fei Ren, Yan Cui
2021 IEEE Access  
It focuses on the imaging method of spherical camera, the feature extracting algorithm and the relocalization of SLAM tracking based on the 3D reconstruction.  ...  feature points of panoramic image, we propose a network based on a separate network to extract local feature accurately and quickly.  ...  The contributions are summarized as: (1) a new camera calibration approach for a spherical camera with multi-fisheyes, making sure the consistency of the panoramic images and the seamless splice of panoramic  ... 
doi:10.1109/access.2021.3130928 fatcat:h4smnbzp5jd73puy3cpuipaamm

Photogrammetric Applications of Immersive Video Cameras

K. Kwiatek, R. Tokarczyk
2014 ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
The second approach is a generation of 3d video-based reconstructions of heritage sites based on immersive video (structure from immersive video).  ...  The findings from these experiments demonstrated that immersive photogrammetry seems to be a flexible and prompt method of 3d modelling and provides promising features for mobile mapping systems.  ...  Schneider and Maas (2003; 2005) , Parian and Gruen (2004) relate to panoramic photogrammetry and their focus was on 3D reconstructions from multiple panoramas and calibration of panoramic cameras (digital  ... 
doi:10.5194/isprsannals-ii-5-211-2014 fatcat:warex3esave65h5t6l7hljet5e

RHYTHM: An Open Source Imaging Toolkit for Cardiac Panoramic Optical Mapping

Christopher Gloschat, Kedar Aras, Shubham Gupta, N. Rokhaya Faye, Hanyu Zhang, Roman A. Syunyaev, Roman A. Pryamonosov, Jack Rogers, Matthew W. Kay, Igor R. Efimov
2018 Scientific Reports  
We also gratefully acknowledge contributions of Brianna Cathey and Sofian Obaid to 3D design and printing of optical system's components.  ...  In addition, we would also like to acknowledge Baichen Li's contribution in optimizing the electrical components of the panoramic setup.  ...  To provide readers with a 3D printing foundation, the toolkit also includes design specifications for building a panoramic optical imaging system. Camera Calibration.  ... 
doi:10.1038/s41598-018-21333-w pmid:29440763 pmcid:PMC5811559 fatcat:wmj6qjqpkzgu7g3hjmogassuki
« Previous Showing results 1 — 15 out of 3,182 results