Six-Dimensional Pose Estimation of Molecular Sieve Drying Package Based on Red Green Blue–Depth Camera

This paper aims to address the challenge of precise robotic grasping of molecular sieve drying bags during automated packaging by proposing a six-dimensional (6D) pose estimation method based on an red green blue-depth (RGB-D) camera. The method consists of three components: point cloud pre-segmenta...

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Main Authors: Yibing Chen, Songxiao Cao, Qixuan Wang, Zhipeng Xu, Tao Song, Qing Jiang
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Sensors
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Online Access:https://www.mdpi.com/1424-8220/25/2/462
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author Yibing Chen
Songxiao Cao
Qixuan Wang
Zhipeng Xu
Tao Song
Qing Jiang
author_facet Yibing Chen
Songxiao Cao
Qixuan Wang
Zhipeng Xu
Tao Song
Qing Jiang
author_sort Yibing Chen
collection DOAJ
description This paper aims to address the challenge of precise robotic grasping of molecular sieve drying bags during automated packaging by proposing a six-dimensional (6D) pose estimation method based on an red green blue-depth (RGB-D) camera. The method consists of three components: point cloud pre-segmentation, target extraction, and pose estimation. A minimum bounding box-based pre-segmentation method was designed to minimize the impact of packaging wrinkles and skirt curling. Orientation filtering combined with Euclidean clustering and Principal Component Analysis (PCA)-based iterative segmentation was employed to accurately extract the target body. Lastly, a multi-target feature fusion method was applied for pose estimation to compute an accurate grasping pose. To validate the effectiveness of the proposed method, 102 sets of experiments were conducted and compared with classical methods such as Fast Point Feature Histograms (FPFH) and Point Pair Features (PPF). The results showed that the proposed method achieved a recognition rate of 99.02%, processing time of 2 s, pose error rate of 1.31%, and spatial position error of 3.278 mm, significantly outperforming the comparative methods. These findings demonstrated the effectiveness of the method in addressing the issue of accurate 6D pose estimation of molecular sieve drying bags, with potential for future applications to other complex-shaped objects.
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institution Kabale University
issn 1424-8220
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publishDate 2025-01-01
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spelling doaj-art-a90df7452d23493e91243299489ede1b2025-01-24T13:49:01ZengMDPI AGSensors1424-82202025-01-0125246210.3390/s25020462Six-Dimensional Pose Estimation of Molecular Sieve Drying Package Based on Red Green Blue–Depth CameraYibing Chen0Songxiao Cao1Qixuan Wang2Zhipeng Xu3Tao Song4Qing Jiang5College of Metrology Measurement and Instrument, China Jiliang University, Hangzhou 310018, ChinaCollege of Metrology Measurement and Instrument, China Jiliang University, Hangzhou 310018, ChinaCollege of Metrology Measurement and Instrument, China Jiliang University, Hangzhou 310018, ChinaCollege of Metrology Measurement and Instrument, China Jiliang University, Hangzhou 310018, ChinaCollege of Metrology Measurement and Instrument, China Jiliang University, Hangzhou 310018, ChinaCollege of Metrology Measurement and Instrument, China Jiliang University, Hangzhou 310018, ChinaThis paper aims to address the challenge of precise robotic grasping of molecular sieve drying bags during automated packaging by proposing a six-dimensional (6D) pose estimation method based on an red green blue-depth (RGB-D) camera. The method consists of three components: point cloud pre-segmentation, target extraction, and pose estimation. A minimum bounding box-based pre-segmentation method was designed to minimize the impact of packaging wrinkles and skirt curling. Orientation filtering combined with Euclidean clustering and Principal Component Analysis (PCA)-based iterative segmentation was employed to accurately extract the target body. Lastly, a multi-target feature fusion method was applied for pose estimation to compute an accurate grasping pose. To validate the effectiveness of the proposed method, 102 sets of experiments were conducted and compared with classical methods such as Fast Point Feature Histograms (FPFH) and Point Pair Features (PPF). The results showed that the proposed method achieved a recognition rate of 99.02%, processing time of 2 s, pose error rate of 1.31%, and spatial position error of 3.278 mm, significantly outperforming the comparative methods. These findings demonstrated the effectiveness of the method in addressing the issue of accurate 6D pose estimation of molecular sieve drying bags, with potential for future applications to other complex-shaped objects.https://www.mdpi.com/1424-8220/25/2/462three-dimensional object recognitionRGB-D cameravisual guidancesix-dimensional pose estimation
spellingShingle Yibing Chen
Songxiao Cao
Qixuan Wang
Zhipeng Xu
Tao Song
Qing Jiang
Six-Dimensional Pose Estimation of Molecular Sieve Drying Package Based on Red Green Blue–Depth Camera
Sensors
three-dimensional object recognition
RGB-D camera
visual guidance
six-dimensional pose estimation
title Six-Dimensional Pose Estimation of Molecular Sieve Drying Package Based on Red Green Blue–Depth Camera
title_full Six-Dimensional Pose Estimation of Molecular Sieve Drying Package Based on Red Green Blue–Depth Camera
title_fullStr Six-Dimensional Pose Estimation of Molecular Sieve Drying Package Based on Red Green Blue–Depth Camera
title_full_unstemmed Six-Dimensional Pose Estimation of Molecular Sieve Drying Package Based on Red Green Blue–Depth Camera
title_short Six-Dimensional Pose Estimation of Molecular Sieve Drying Package Based on Red Green Blue–Depth Camera
title_sort six dimensional pose estimation of molecular sieve drying package based on red green blue depth camera
topic three-dimensional object recognition
RGB-D camera
visual guidance
six-dimensional pose estimation
url https://www.mdpi.com/1424-8220/25/2/462
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AT songxiaocao sixdimensionalposeestimationofmolecularsievedryingpackagebasedonredgreenbluedepthcamera
AT qixuanwang sixdimensionalposeestimationofmolecularsievedryingpackagebasedonredgreenbluedepthcamera
AT zhipengxu sixdimensionalposeestimationofmolecularsievedryingpackagebasedonredgreenbluedepthcamera
AT taosong sixdimensionalposeestimationofmolecularsievedryingpackagebasedonredgreenbluedepthcamera
AT qingjiang sixdimensionalposeestimationofmolecularsievedryingpackagebasedonredgreenbluedepthcamera