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77 Results Found

  • Article
  • Open Access
7 Citations
2,916 Views
28 Pages

9 January 2024

Stereo cameras can capture the rich image textures of a scene, while LiDAR can obtain accurate 3D coordinates of point clouds of a scene. They complement each other and can achieve comprehensive and accurate environment perception through data fusion...

  • Article
  • Open Access
9 Citations
3,733 Views
25 Pages

An In-Orbit Stereo Navigation Camera Self-Calibration Method for Planetary Rovers with Multiple Constraints

  • Xinchao Xu,
  • Mingyue Liu,
  • Song Peng,
  • Youqing Ma,
  • Hongxi Zhao and
  • Aigong Xu

16 January 2022

In order to complete the high-precision calibration of the planetary rover navigation camera using limited initial data in-orbit, we proposed a joint adjustment model with additional multiple constraints. Specifically, a base model was first establis...

  • Article
  • Open Access
4 Citations
8,022 Views
19 Pages

Fusion of a Variable Baseline System and a Range Finder

  • Javier Hernández-Aceituno,
  • Leopoldo Acosta and
  • Rafael Arnay

28 December 2011

One of the greatest difficulties in stereo vision is the appearance of ambiguities when matching similar points from different images. In this article we analyze the effectiveness of using a fusion of multiple baselines and a range finder from a theo...

  • Article
  • Open Access
33 Citations
12,559 Views
13 Pages

Reliable Real-Time Ball Tracking for Robot Table Tennis

  • Sebastian Gomez-Gonzalez,
  • Yassine Nemmour,
  • Bernhard Schölkopf and
  • Jan Peters

22 October 2019

Robot table tennis systems require a vision system that can track the ball position with low latency and high sampling rate. Altering the ball to simplify the tracking using, for instance, infrared coating changes the physics of the ball trajectory....

  • Article
  • Open Access
12 Citations
4,830 Views
23 Pages

Variable Baseline and Flexible Configuration Stereo Vision Using Two Aerial Robots

  • Borwonpob Sumetheeprasit,
  • Ricardo Rosales Martinez,
  • Hannibal Paul,
  • Robert Ladig and
  • Kazuhiro Shimonomura

18 January 2023

In this work, a new method for aerial robot remote sensing using stereo vision is proposed. A variable baseline and flexible configuration stereo setup is achieved by separating the left camera and right camera on two separate quadrotor aerial robots...

  • Article
  • Open Access
3 Citations
2,563 Views
19 Pages

26 April 2023

This study focuses on solving the correspondence problem of multiple moving objects with similar appearances in stereoscopic videos. Specifically, we address the multi-camera correspondence problem by taking into account the pixel-level and feature-l...

  • Article
  • Open Access
2 Citations
2,219 Views
21 Pages

Triple-Camera Rectification for Depth Estimation Sensor

  • Minkyung Jeon,
  • Jinhong Park,
  • Jin-Woo Kim and
  • Sungmin Woo

20 September 2024

In this study, we propose a novel rectification method for three cameras using a single image for depth estimation. Stereo rectification serves as a fundamental preprocessing step for disparity estimation in stereoscopic cameras. However, off-the-she...

  • Article
  • Open Access
1,518 Views
15 Pages

15 April 2025

This paper provides a comparative analysis of calibration techniques applicable to stereo and near-infrared (NIR) camera systems, with a specific emphasis on the Intel RealSense SR300 alongside a standard 2-megapixel NIR camera. This study investigat...

  • Article
  • Open Access
292 Views
21 Pages

Stereo-Based Single-Shot Hand-to-Eye Calibration for Robot Arms

  • Pushkar Kadam,
  • Gu Fang,
  • Farshid Amirabdollahian,
  • Ju Jia Zou and
  • Patrick Holthaus

13 January 2026

Robot hand-to-eye calibration is a necessary process for a robot arm to perceive and interact with its environment. Past approaches required collecting multiple images using a calibration board placed at different locations relative to the robot. Whe...

  • Article
  • Open Access
24 Citations
7,924 Views
22 Pages

Automatic 360° Mono-Stereo Panorama Generation Using a Cost-Effective Multi-Camera System

  • Hayat Ullah,
  • Osama Zia,
  • Jun Ho Kim,
  • Kyungjin Han and
  • Jong Weon Lee

30 May 2020

In recent years, 360° videos have gained the attention of researchers due to their versatility and applications in real-world problems. Also, easy access to different visual sensor kits and easily deployable image acquisition devices have played...

  • Article
  • Open Access
2 Citations
2,806 Views
14 Pages

Research on Omnidirectional Stereo Measurement Using Convex Mirrors and Vertical Disparity

  • Yuki Ozawa,
  • Shingo Kimura,
  • Yiling Zhu,
  • Atsutoshi Kurihara and
  • Yue Bao

19 March 2023

We propose an omnidirectional measurement method without blind spots by using a convex mirror, which in principle does not cause chromatic aberration, and by using vertical disparity by installing cameras at the top and bottom of the image. In recent...

  • Article
  • Open Access
12 Citations
5,696 Views
30 Pages

A Photogrammetric-Photometric Stereo Method for High-Resolution Lunar Topographic Mapping Using Yutu-2 Rover Images

  • Man Peng,
  • Kaichang Di,
  • Yexin Wang,
  • Wenhui Wan,
  • Zhaoqin Liu,
  • Jia Wang and
  • Lichun Li

28 July 2021

Topographic products are important for mission operations and scientific research in lunar exploration. In a lunar rover mission, high-resolution digital elevation models are typically generated at waypoints by photogrammetry methods based on rover s...

  • Article
  • Open Access
35 Citations
6,137 Views
40 Pages

Evaluating Stereo Digital Terrain Model Quality at Mars Rover Landing Sites with HRSC, CTX, and HiRISE Images

  • Randolph L. Kirk,
  • David P. Mayer,
  • Robin L. Fergason,
  • Bonnie L. Redding,
  • Donna M. Galuszka,
  • Trent M. Hare and
  • Klaus Gwinner

4 September 2021

We have used high-resolution digital terrain models (DTMs) of two rover landing sites based on mosaicked images from the High-Resolution Imaging Science Experiment (HiRISE) camera as a reference to evaluate DTMs based on High-Resolution Stereo Camera...

  • Article
  • Open Access
1 Citations
3,101 Views
16 Pages

5 September 2024

Fusing data from many sources helps to achieve improved analysis and results. In this work, we present a new algorithm to fuse data from multiple cameras with data from multiple lidars. This algorithm was developed to increase the sensitivity and spe...

  • Article
  • Open Access
4 Citations
3,207 Views
17 Pages

Panoramic Digital Image Correlation for 360-Deg Full-Field Displacement Measurement

  • Yiran Li,
  • Dong Zhao,
  • Xueyi Ma,
  • Jianzhong Zhang and
  • Jian Zhao

3 February 2023

In full-field 3D displacement measurement, stereo digital image correlation (Stereo-DIC) has strong capabilities. However, as a result of difficulties with stereo camera calibration and surface merging, 360-deg panoramic displacement measurements rem...

  • Article
  • Open Access
54 Citations
13,819 Views
27 Pages

3D Imaging of Greenhouse Plants with an Inexpensive Binocular Stereo Vision System

  • Dawei Li,
  • Lihong Xu,
  • Xue-song Tang,
  • Shaoyuan Sun,
  • Xin Cai and
  • Peng Zhang

21 May 2017

Nowadays, 3D imaging of plants not only contributes to monitoring and managing plant growth, but is also becoming an essential part of high-throughput plant phenotyping. In this paper, an inexpensive (less than 70 USD) and portable platform with bino...

  • Article
  • Open Access
722 Views
17 Pages

Robust Direct Multi-Camera SLAM in Challenging Scenarios

  • Yonglei Pan,
  • Yueshang Zhou,
  • Qiming Qi,
  • Guoyan Wang,
  • Yanwen Jiang,
  • Hongqi Fan and
  • Jun He

21 November 2025

Traditional monocular and stereo visual SLAM systems often fail to operate stably in complex unstructured environments (e.g., weakly textured or repetitively textured scenes) due to feature scarcity from their limited fields of view. In contrast, mul...

  • Article
  • Open Access
26 Citations
10,605 Views
14 Pages

29 September 2016

Three-dimensional (3D) reconstruction of a tree canopy is an important step in order to measure canopy geometry, such as height, width, volume, and leaf cover area. In this research, binocular stereo vision was used to recover the 3D information of t...

  • Review
  • Open Access
10 Citations
5,570 Views
13 Pages

Stereo-Photogrammetry for Impression of Full-Arch Fixed Dental Prosthesis—An Update of the Reviews

  • Paulo Ribeiro,
  • Carmen María Díaz-Castro,
  • Blanca Ríos-Carrasco,
  • José Vicente Ríos-Santos and
  • Mariano Herrero-Climent

15 August 2024

Photogrammetry (PG) appeared as an alternative for multiple implant impressions. Stereo-photogrammetry is a more sophisticated alternative to PG, which estimates the 3D coordinates of the points of an object, making the process quicker and more preci...

  • Article
  • Open Access
23 Citations
5,372 Views
14 Pages

4 April 2018

This paper proposes a wide-baseline stereo-based static obstacle mapping approach for unmanned surface vehicles (USVs). The proposed approach eliminates the complicated calibration work and the bulky rig in our previous binocular stereo system, and r...

  • Article
  • Open Access
9 Citations
7,649 Views
17 Pages

The Dynamic Photometric Stereo Method Using a Multi-Tap CMOS Image Sensor

  • Takuya Yoda,
  • Hajime Nagahara,
  • Rin-ichiro Taniguchi,
  • Keiichiro Kagawa,
  • Keita Yasutomi and
  • Shoji Kawahito

5 March 2018

The photometric stereo method enables estimation of surface normals from images that have been captured using different but known lighting directions. The classical photometric stereo method requires at least three images to determine the normals in...

  • Article
  • Open Access
33 Citations
9,722 Views
18 Pages

VersaVIS—An Open Versatile Multi-Camera Visual-Inertial Sensor Suite

  • Florian Tschopp,
  • Michael Riner,
  • Marius Fehr,
  • Lukas Bernreiter,
  • Fadri Furrer,
  • Tonci Novkovic,
  • Andreas Pfrunder,
  • Cesar Cadena,
  • Roland Siegwart and
  • Juan Nieto

6 March 2020

Robust and accurate pose estimation is crucial for many applications in mobile robotics. Extending visual Simultaneous Localization and Mapping (SLAM) with other modalities such as an inertial measurement unit (IMU) can boost robustness and accuracy....

  • Article
  • Open Access
1,629 Views
17 Pages

Tracking across multiple cameras is a complex problem in computer vision. Its main challenges include camera calibration, occlusion handling, camera overlap and field of view, person re-identification, and data association. In this study, we designed...

  • Article
  • Open Access
9 Citations
5,559 Views
16 Pages

8 January 2021

We present a novel simultaneous localization and mapping (SLAM) system that extends the state-of-the-art ORB-SLAM2 for multi-camera usage without precalibration. In this system, each camera is tracked independently on a shared map, and the extrinsic...

  • Article
  • Open Access
1 Citations
3,097 Views
27 Pages

Optimizing Multi-Camera Mobile Mapping Systems with Pose Graph and Feature-Based Approaches

  • Ahmad El-Alailyi,
  • Luca Morelli,
  • Paweł Trybała,
  • Francesco Fassi and
  • Fabio Remondino

13 August 2025

Multi-camera Visual Simultaneous Localization and Mapping (V-SLAM) increases spatial coverage through multi-view image streams, improving localization accuracy and reducing data acquisition time. Despite its speed and generally robustness, V-SLAM oft...

  • Article
  • Open Access
13 Citations
4,275 Views
25 Pages

Experimental Fire Measurement with UAV Multimodal Stereovision

  • Vito Ciullo,
  • Lucile Rossi and
  • Antoine Pieri

29 October 2020

In wildfire research, systems that are able to estimate the geometric characteristics of fire, in order to understand and model the behavior of this spreading and dangerous phenomenon, are required. Over the past decade, there has been a growing inte...

  • Article
  • Open Access
18 Citations
4,029 Views
18 Pages

9 September 2022

To address the limitations of conventional stereo-digital image correlation (DIC) on measuring complex objects, a continuous-view multi-camera DIC (MC-DIC) system and its two forms of camera arrangement are introduced. Multiple cameras with certain o...

  • Article
  • Open Access
18 Citations
5,978 Views
13 Pages

Development and Validation of 2D-LiDAR-Based Gait Analysis Instrument and Algorithm

  • Seongjun Yoon,
  • Hee-Won Jung,
  • Heeyoune Jung,
  • Keewon Kim,
  • Suk-Koo Hong,
  • Hyunchul Roh and
  • Byung-Mo Oh

8 January 2021

Acquiring gait parameters from usual walking is important to predict clinical outcomes including life expectancy, risk of fall, and neurocognitive performance in older people. We developed a novel gait analysis tool that is small, less-intrusive and...

  • Article
  • Open Access
14 Citations
4,225 Views
15 Pages

20 October 2022

Structured-light vision methods are widely employed for three-dimensional reconstruction. As a typical structured light pattern, grid pattern is extensively applied in single-shot three-dimensional reconstruction. The uniqueness of the grid feature r...

  • Article
  • Open Access
1 Citations
2,069 Views
21 Pages

Rapid 3D Camera Calibration for Large-Scale Structural Monitoring

  • Fabio Bottalico,
  • Nicholas A. Valente,
  • Christopher Niezrecki,
  • Kshitij Jerath,
  • Yan Luo and
  • Alessandro Sabato

6 August 2025

Computer vision techniques such as three-dimensional digital image correlation (3D-DIC) and three-dimensional point tracking (3D-PT) have demonstrated broad applicability for monitoring the conditions of large-scale engineering systems by reconstruct...

  • Article
  • Open Access
40 Citations
5,810 Views
24 Pages

21 September 2020

Among the physical attributes of agricultural materials, mass, volume, and sizes have always been important quality parameters. Previous research focused mostly on volume estimation using stereo-based approaches, which rely on manual intervention or...

  • Article
  • Open Access
8 Citations
4,027 Views
19 Pages

9 April 2024

With the widespread adoption of modern RGB cameras, an abundance of RGB images is available everywhere. Therefore, multi-view stereo (MVS) 3D reconstruction has been extensively applied across various fields because of its cost-effectiveness and acce...

  • Article
  • Open Access
6 Citations
3,142 Views
16 Pages

Time-of-Flight Camera Intensity Image Reconstruction Based on an Untrained Convolutional Neural Network

  • Tian-Long Wang,
  • Lin Ao,
  • Na Han,
  • Fu Zheng,
  • Yan-Qiu Wang and
  • Zhi-Bin Sun

30 August 2024

With the continuous development of science and technology, laser ranging technology will become more efficient, convenient, and widespread, and it has been widely used in the fields of medicine, engineering, video games, and three-dimensional imaging...

  • Technical Note
  • Open Access
22 Citations
6,242 Views
17 Pages

6 August 2021

In recent years, there has been a growing demand for 3D reconstructions of tunnel pits, underground pipe networks, and building interiors. For such scenarios, weak textures, repeated textures, or even no textures are common. To reconstruct these scen...

  • Article
  • Open Access
5 Citations
2,506 Views
17 Pages

Unsupervised Deep Learning for Advanced Forming Limit Analysis in Sheet Metal: A Tensile Test-Based Approach

  • Aleksandra Thamm,
  • Florian Thamm,
  • Annette Sawodny,
  • Sally Zeitler,
  • Marion Merklein and
  • Andreas Maier

1 November 2023

An accurate description of the formability and failure behavior of sheet metal materials is essential for an optimal forming process design. In this respect, the forming limit curve (FLC) based on the Nakajima test, which is determined in accordance...

  • Article
  • Open Access
15 Citations
6,357 Views
23 Pages

Real-Time Vehicle Positioning and Mapping Using Graph Optimization

  • Anweshan Das,
  • Jos Elfring and
  • Gijs Dubbelman

16 April 2021

In this work, we propose and evaluate a pose-graph optimization-based real-time multi-sensor fusion framework for vehicle positioning using low-cost automotive-grade sensors. Pose-graphs can model multiple absolute and relative vehicle positioning se...

  • Article
  • Open Access
34 Citations
6,510 Views
17 Pages

Super-Resolution Images Methodology Applied to UAV Datasets to Road Pavement Monitoring

  • Laura Inzerillo,
  • Francesco Acuto,
  • Gaetano Di Mino and
  • Mohammed Zeeshan Uddin

12 July 2022

The increasingly widespread use of smartphones as real cameras on drones has allowed an ever-greater development of several algorithms to improve the image’s refinement. Although the latest generations of drone cameras let the user achieve high...

  • Article
  • Open Access
13 Citations
3,799 Views
16 Pages

18 August 2022

A slip-aware localization framework is proposed for mobile robots experiencing wheel slip in dynamic environments. The framework fuses infrastructure-aided visual tracking data (via fisheye lenses) and proprioceptive sensory data from a skid-steer mo...

  • Article
  • Open Access
25 Citations
9,834 Views
36 Pages

Inertial Sensor Self-Calibration in a Visually-Aided Navigation Approach for a Micro-AUV

  • Francisco Bonin-Font,
  • Miquel Massot-Campos,
  • Pep Lluis Negre-Carrasco,
  • Gabriel Oliver-Codina and
  • Joan P. Beltran

16 January 2015

This paper presents a new solution for underwater observation, image recording, mapping and 3D reconstruction in shallow waters. The platform, designed as a research and testing tool, is based on a small underwater robot equipped with a MEMS-based IM...

  • Article
  • Open Access
8 Citations
4,167 Views
21 Pages

Sensors Fusion and Multidimensional Point Cloud Analysis for Electrical Power System Inspection

  • Vinicius F. Vidal,
  • Leonardo M. Honório,
  • Felipe M. Dias,
  • Milena F. Pinto,
  • Alexandre L. Carvalho and
  • Andre L. M. Marcato

21 July 2020

Thermal inspection is a powerful tool that enables the diagnosis of several components at its early stages. One critical aspect that influences thermal inspection outputs is the infrared reflection from external sources. This situation may change the...

  • Article
  • Open Access
14 Citations
5,776 Views
15 Pages

A Simple Way to Reduce 3D Model Deformation in Smartphone Photogrammetry

  • Aleksandra Jasińska,
  • Krystian Pyka,
  • Elżbieta Pastucha and
  • Henrik Skov Midtiby

9 January 2023

Recently, the term smartphone photogrammetry gained popularity. This suggests that photogrammetry may become a simple measurement tool by virtually every smartphone user. The research was undertaken to clarify whether it is appropriate to use the Str...

  • Article
  • Open Access
8 Citations
3,116 Views
15 Pages

19 January 2023

In the early days of railroads in Korea, railway bridges were constructed as steel plate-girder structures, which are vulnerable to vibration and torsion. Many of these bridges have since been replaced with concrete-slab structures, which have high s...

  • Article
  • Open Access
2 Citations
2,865 Views
13 Pages

Industry-Fit AI Usage for Crack Detection in Ground Steel

  • Daniel Soukup,
  • Christian Kapeller,
  • Bernhard Raml and
  • Johannes Ruisz

24 August 2022

We investigated optimal implementation strategies for industrial inspection systems aiming to detect cracks on ground steel billets’ surfaces by combining state-of-the-art AI-based methods and classical computational imaging techniques. In 2D t...

  • Review
  • Open Access
90 Citations
16,122 Views
49 Pages

12 April 2020

This paper focuses on data fusion, which is fundamental to one of the most important modules in any autonomous system: perception. Over the past decade, there has been a surge in the usage of smart/autonomous mobility systems. Such systems can be use...

  • Article
  • Open Access
6 Citations
3,738 Views
31 Pages

24 November 2020

Systems composed of multiple sensors for exteroceptive perception are becoming increasingly common, such as mobile robots or highly monitored spaces. However, to combine and fuse those sensors to create a larger and more robust representation of the...

  • Article
  • Open Access
990 Views
16 Pages

18 September 2025

Photogrammetry-based 3D reconstruction of the shape of fast-moving objects from image sequences presents a complex yet increasingly important challenge. The 3D reconstruction of a large number of fast-moving objects may, for instance, be of high impo...

  • Article
  • Open Access
7 Citations
4,902 Views
15 Pages

23 May 2022

To address the lack of fast and high-precision in situ measurement of large-sized pipes in current industrial applications, a pipe-diameter-measurement method based on stereo vision is designed in this paper. By using multiple sets of binocular camer...

  • Article
  • Open Access
39 Citations
7,147 Views
18 Pages

31 January 2021

Accurate vehicle ego-localization is key for autonomous vehicles to complete high-level navigation tasks. The state-of-the-art localization methods adopt visual and light detection and ranging (LiDAR) simultaneous localization and mapping (SLAM) to e...

  • Article
  • Open Access
13 Citations
7,137 Views
15 Pages

11 March 2016

This paper deals with an improved methodology to measure three-dimensional dynamic displacements of a structure by digital close-range photogrammetry. A series of stereo images of a vibrating structure installed with targets are taken at specified in...

  • Article
  • Open Access
14 Citations
4,276 Views
19 Pages

An Accurate Linear Method for 3D Line Reconstruction for Binocular or Multiple View Stereo Vision

  • Lijun Zhong,
  • Junyou Qin,
  • Xia Yang,
  • Xiaohu Zhang,
  • Yang Shang,
  • Hongliang Zhang and
  • Qifeng Yu

19 January 2021

For the problem of 3D line reconstruction in binocular or multiple view stereo vision, when there are no corresponding points on the line, the method called Direction-then-Point (DtP) can be used, and if there are two pairs of corresponding points on...

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