High-accuracy and efficient method for calibrating spatial laser beam based on optimized PSD
The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Sun, Zefeng [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2023transfer abstract |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Effect of hawthorn seed extract on the gastrointestinal function of rats with diabetic gastroparesis - Niu, Zhenzhen ELSEVIER, 2020, Amsterdam |
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| Übergeordnetes Werk: |
volume:527 ; year:2023 ; day:15 ; month:01 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1016/j.optcom.2022.128946 |
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ELV059201118 |
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| 520 | |a The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. The proposed method is applied to non-orthogonal shafting theodolites, and the point measurement average error is less than 0.17 mm, and the distance measurement average error is less than 0.16 mm. | ||
| 520 | |a The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. The proposed method is applied to non-orthogonal shafting theodolites, and the point measurement average error is less than 0.17 mm, and the distance measurement average error is less than 0.16 mm. | ||
| 650 | 7 | |a Laser beam calibration |2 Elsevier | |
| 650 | 7 | |a PSD |2 Elsevier | |
| 650 | 7 | |a Spatial coordinates of laser points |2 Elsevier | |
| 650 | 7 | |a Large-scale measurement |2 Elsevier | |
| 700 | 1 | |a Kang, Jiehu |4 oth | |
| 700 | 1 | |a Zhang, Zhen |4 oth | |
| 700 | 1 | |a Feng, Luyuan |4 oth | |
| 700 | 1 | |a Wu, Bin |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |a Niu, Zhenzhen ELSEVIER |t Effect of hawthorn seed extract on the gastrointestinal function of rats with diabetic gastroparesis |d 2020 |g Amsterdam |w (DE-627)ELV004103645 |
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10.1016/j.optcom.2022.128946 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001966.pica (DE-627)ELV059201118 (ELSEVIER)S0030-4018(22)00595-8 DE-627 ger DE-627 rakwb eng 580 VZ AFRIKA DE-30 fid BIODIV DE-30 fid 42.38 bkl Sun, Zefeng verfasserin aut High-accuracy and efficient method for calibrating spatial laser beam based on optimized PSD 2023transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. The proposed method is applied to non-orthogonal shafting theodolites, and the point measurement average error is less than 0.17 mm, and the distance measurement average error is less than 0.16 mm. The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. The proposed method is applied to non-orthogonal shafting theodolites, and the point measurement average error is less than 0.17 mm, and the distance measurement average error is less than 0.16 mm. Laser beam calibration Elsevier PSD Elsevier Spatial coordinates of laser points Elsevier Large-scale measurement Elsevier Kang, Jiehu oth Zhang, Zhen oth Feng, Luyuan oth Wu, Bin oth Enthalten in Niu, Zhenzhen ELSEVIER Effect of hawthorn seed extract on the gastrointestinal function of rats with diabetic gastroparesis 2020 Amsterdam (DE-627)ELV004103645 volume:527 year:2023 day:15 month:01 pages:0 https://doi.org/10.1016/j.optcom.2022.128946 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-AFRIKA FID-BIODIV 42.38 Botanik: Allgemeines VZ AR 527 2023 15 0115 0 |
| spelling |
10.1016/j.optcom.2022.128946 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001966.pica (DE-627)ELV059201118 (ELSEVIER)S0030-4018(22)00595-8 DE-627 ger DE-627 rakwb eng 580 VZ AFRIKA DE-30 fid BIODIV DE-30 fid 42.38 bkl Sun, Zefeng verfasserin aut High-accuracy and efficient method for calibrating spatial laser beam based on optimized PSD 2023transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. The proposed method is applied to non-orthogonal shafting theodolites, and the point measurement average error is less than 0.17 mm, and the distance measurement average error is less than 0.16 mm. The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. The proposed method is applied to non-orthogonal shafting theodolites, and the point measurement average error is less than 0.17 mm, and the distance measurement average error is less than 0.16 mm. Laser beam calibration Elsevier PSD Elsevier Spatial coordinates of laser points Elsevier Large-scale measurement Elsevier Kang, Jiehu oth Zhang, Zhen oth Feng, Luyuan oth Wu, Bin oth Enthalten in Niu, Zhenzhen ELSEVIER Effect of hawthorn seed extract on the gastrointestinal function of rats with diabetic gastroparesis 2020 Amsterdam (DE-627)ELV004103645 volume:527 year:2023 day:15 month:01 pages:0 https://doi.org/10.1016/j.optcom.2022.128946 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-AFRIKA FID-BIODIV 42.38 Botanik: Allgemeines VZ AR 527 2023 15 0115 0 |
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10.1016/j.optcom.2022.128946 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001966.pica (DE-627)ELV059201118 (ELSEVIER)S0030-4018(22)00595-8 DE-627 ger DE-627 rakwb eng 580 VZ AFRIKA DE-30 fid BIODIV DE-30 fid 42.38 bkl Sun, Zefeng verfasserin aut High-accuracy and efficient method for calibrating spatial laser beam based on optimized PSD 2023transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. The proposed method is applied to non-orthogonal shafting theodolites, and the point measurement average error is less than 0.17 mm, and the distance measurement average error is less than 0.16 mm. The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. The proposed method is applied to non-orthogonal shafting theodolites, and the point measurement average error is less than 0.17 mm, and the distance measurement average error is less than 0.16 mm. Laser beam calibration Elsevier PSD Elsevier Spatial coordinates of laser points Elsevier Large-scale measurement Elsevier Kang, Jiehu oth Zhang, Zhen oth Feng, Luyuan oth Wu, Bin oth Enthalten in Niu, Zhenzhen ELSEVIER Effect of hawthorn seed extract on the gastrointestinal function of rats with diabetic gastroparesis 2020 Amsterdam (DE-627)ELV004103645 volume:527 year:2023 day:15 month:01 pages:0 https://doi.org/10.1016/j.optcom.2022.128946 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-AFRIKA FID-BIODIV 42.38 Botanik: Allgemeines VZ AR 527 2023 15 0115 0 |
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10.1016/j.optcom.2022.128946 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001966.pica (DE-627)ELV059201118 (ELSEVIER)S0030-4018(22)00595-8 DE-627 ger DE-627 rakwb eng 580 VZ AFRIKA DE-30 fid BIODIV DE-30 fid 42.38 bkl Sun, Zefeng verfasserin aut High-accuracy and efficient method for calibrating spatial laser beam based on optimized PSD 2023transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. The proposed method is applied to non-orthogonal shafting theodolites, and the point measurement average error is less than 0.17 mm, and the distance measurement average error is less than 0.16 mm. The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. The proposed method is applied to non-orthogonal shafting theodolites, and the point measurement average error is less than 0.17 mm, and the distance measurement average error is less than 0.16 mm. Laser beam calibration Elsevier PSD Elsevier Spatial coordinates of laser points Elsevier Large-scale measurement Elsevier Kang, Jiehu oth Zhang, Zhen oth Feng, Luyuan oth Wu, Bin oth Enthalten in Niu, Zhenzhen ELSEVIER Effect of hawthorn seed extract on the gastrointestinal function of rats with diabetic gastroparesis 2020 Amsterdam (DE-627)ELV004103645 volume:527 year:2023 day:15 month:01 pages:0 https://doi.org/10.1016/j.optcom.2022.128946 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-AFRIKA FID-BIODIV 42.38 Botanik: Allgemeines VZ AR 527 2023 15 0115 0 |
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10.1016/j.optcom.2022.128946 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001966.pica (DE-627)ELV059201118 (ELSEVIER)S0030-4018(22)00595-8 DE-627 ger DE-627 rakwb eng 580 VZ AFRIKA DE-30 fid BIODIV DE-30 fid 42.38 bkl Sun, Zefeng verfasserin aut High-accuracy and efficient method for calibrating spatial laser beam based on optimized PSD 2023transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. The proposed method is applied to non-orthogonal shafting theodolites, and the point measurement average error is less than 0.17 mm, and the distance measurement average error is less than 0.16 mm. The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. The proposed method is applied to non-orthogonal shafting theodolites, and the point measurement average error is less than 0.17 mm, and the distance measurement average error is less than 0.16 mm. Laser beam calibration Elsevier PSD Elsevier Spatial coordinates of laser points Elsevier Large-scale measurement Elsevier Kang, Jiehu oth Zhang, Zhen oth Feng, Luyuan oth Wu, Bin oth Enthalten in Niu, Zhenzhen ELSEVIER Effect of hawthorn seed extract on the gastrointestinal function of rats with diabetic gastroparesis 2020 Amsterdam (DE-627)ELV004103645 volume:527 year:2023 day:15 month:01 pages:0 https://doi.org/10.1016/j.optcom.2022.128946 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-AFRIKA FID-BIODIV 42.38 Botanik: Allgemeines VZ AR 527 2023 15 0115 0 |
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However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. The proposed method is applied to non-orthogonal shafting theodolites, and the point measurement average error is less than 0.17 mm, and the distance measurement average error is less than 0.16 mm.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. 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Effect of hawthorn seed extract on the gastrointestinal function of rats with diabetic gastroparesis |
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high-accuracy and efficient method for calibrating spatial laser beam based on optimized psd |
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High-accuracy and efficient method for calibrating spatial laser beam based on optimized PSD |
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The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. The proposed method is applied to non-orthogonal shafting theodolites, and the point measurement average error is less than 0.17 mm, and the distance measurement average error is less than 0.16 mm. |
| abstractGer |
The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. The proposed method is applied to non-orthogonal shafting theodolites, and the point measurement average error is less than 0.17 mm, and the distance measurement average error is less than 0.16 mm. |
| abstract_unstemmed |
The laser sensing technique with visual laser beam has been an increasing interest in large-scale 3D measurement. However, a major limitation has been the high-accuracy positioning of laser beam in 3D space. An efficient calibration method of spatial laser beam in large-scale measurement is proposed in this paper. A novel PSD-based laser detecting device is presented to accurately collect the laser beam data. The 3D coordinates of points on the laser beam can be transformed from the PSD coordinate system to the world coordinate system by the pre-calibrated reference points and spatial transformation analysis. Furthermore, the optimized method of PSD data processing is proposed to reduce the influence of ambient light on detecting laser point coordinates. Finally, the spatial posture of laser beam can be obtained by linear fitting from the high-accuracy acquired points. The calibration process is greatly simplified compared with the existing methods. The experimental results show that the average deviation between the obtained spatial points and the fitted line is less than 0.015 mm within 5 m. The proposed method is applied to non-orthogonal shafting theodolites, and the point measurement average error is less than 0.17 mm, and the distance measurement average error is less than 0.16 mm. |
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High-accuracy and efficient method for calibrating spatial laser beam based on optimized PSD |
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Kang, Jiehu Zhang, Zhen Feng, Luyuan Wu, Bin |
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