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Sensors for Object Detection, Pose Estimation, and 3D Reconstruction

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Sensing and Imaging".

Deadline for manuscript submissions: 20 December 2024 | Viewed by 1199

Special Issue Editors


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Guest Editor
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Interests: machine vision; 3D optical inspection; industrial augmented reality

E-Mail Website
Guest Editor
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Interests: computer vision; 3D reconstruction

E-Mail Website
Guest Editor
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Interests: machine vision; photogrammetry; non-contact strain measurement

Special Issue Information

Dear Colleagues,

This topic encompasses a range of technologies dedicated to gathering data from the environment to identify objects, estimate their spatial orientations, and construct detailed 3D representations. These sensors are pivotal across numerous domains, including robotics, augmented reality, autonomous vehicles, and computer vision. 

Object detection sensors utilize various technologies such as cameras, LiDAR, RADAR, or depth sensors to perceive objects within their surroundings. These technologies are crucial for applications like autonomous vehicles and surveillance systems. 

In the realm of 3D reconstruction, sensors collect data points from multiple vantage points and use algorithms to generate intricate 3D models of either the entire scene or specific objects within it. This process often involves methodologies like point cloud registration, surface reconstruction, and texture mapping. 

Overall, the integration of various sensors for object detection, pose estimation, and 3D reconstruction enables advanced perception capabilities in robotics, computer vision applications, aviation, aerospace, automotive, and beyond.

Prof. Dr. Liyan Zhang
Dr. Shenglan Liu
Dr. Nan Ye
Guest Editors

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Keywords

  • machine vision
  • 3D optical inspection
  • industrial augmented reality
  • computer vision
  • 3D reconstruction
  • photogrammetry
  • non-contact strain measurement
  • image processing

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Published Papers (1 paper)

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Research

16 pages, 8801 KiB  
Article
Noise-Robust 3D Pose Estimation Using Appearance Similarity Based on the Distributed Multiple Views
by Taemin Hwang and Minjoon Kim
Sensors 2024, 24(17), 5645; https://doi.org/10.3390/s24175645 - 30 Aug 2024
Viewed by 910
Abstract
In this paper, we present a noise-robust approach for the 3D pose estimation of multiple people using appearance similarity. The common methods identify the cross-view correspondences between the detected keypoints and determine their association with a specific person by measuring the distances between [...] Read more.
In this paper, we present a noise-robust approach for the 3D pose estimation of multiple people using appearance similarity. The common methods identify the cross-view correspondences between the detected keypoints and determine their association with a specific person by measuring the distances between the epipolar lines and the joint locations of the 2D keypoints across all the views. Although existing methods achieve remarkable accuracy, they are still sensitive to camera calibration, making them unsuitable for noisy environments where any of the cameras slightly change angle or position. To address these limitations and fix camera calibration error in real-time, we propose a framework for 3D pose estimation which uses appearance similarity. In the proposed framework, we detect the 2D keypoints and extract the appearance feature and transfer it to the central server. The central server uses geometrical affinity and appearance similarity to match the detected 2D human poses to each person. Then, it compares these two groups to identify calibration errors. If a camera with the wrong calibration is identified, the central server fixes the calibration error, ensuring accuracy in the 3D reconstruction of skeletons. In the experimental environment, we verified that the proposed algorithm is robust against false geometrical errors. It achieves around 11.5% and 8% improvement in the accuracy of 3D pose estimation on the Campus and Shelf datasets, respectively. Full article
(This article belongs to the Special Issue Sensors for Object Detection, Pose Estimation, and 3D Reconstruction)
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