Articles with "positional accuracy" as a keyword



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Statistical process control and verifying positional accuracy of a cobra motion couch using step‐wedge quality assurance tool

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Published in 2017 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.12136

Abstract: Abstract This study utilizes process control techniques to identify action limits for TomoTherapy couch positioning quality assurance tests. A test was introduced to monitor accuracy of the applied couch offset detection in the TomoTherapy Hi‐Art… read more here.

Keywords: accuracy; process; process control; positional accuracy ... See more keywords
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The effects of nearby trees on the positional accuracy of GNSS receivers in a forest environment

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Published in 2023 at "PLOS ONE"

DOI: 10.1371/journal.pone.0283090

Abstract: Global Navigational Satellite System (GNSS) technologies are actively being developed to address the demand for enhanced positional accuracy. Smartphones are the most prevalent GNSS receiver today and have garnered attention thanks to improved positional accuracy… read more here.

Keywords: nearby trees; gnss receivers; positional accuracy; accuracy ... See more keywords
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A New Method for Positional Accuracy Control for Non-Normal Errors Applied to Airborne Laser Scanner Data

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Published in 2019 at "Applied Sciences"

DOI: 10.3390/app9183887

Abstract: A new statistical method for the quality control of the positional accuracy, useful in a wide range of data sets, is proposed and its use is illustrated through its application to airborne laser scanner (ALS)… read more here.

Keywords: non normal; control; accuracy; airborne laser ... See more keywords
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Assessing horizontal positional accuracy of Google Earth imagery in the city of Montreal, Canada

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Published in 2017 at "Geodesy and Cartography"

DOI: 10.3846/20296991.2017.1330767

Abstract: The horizontal positional accuracy of Google Earth is assessed in the city of Montreal, Canada, using the precise coordinates of ten GPS points spatially distributed all over the city. The results ... read more here.

Keywords: accuracy google; city; google earth; city montreal ... See more keywords
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Assessment of Multi-leaf Collimator Positional Accuracy Using Radiochromic EBT3 Film and an Electronic Portal Imaging Device

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Published in 2020 at "Journal of the Korean Physical Society"

DOI: 10.3938/jkps.76.795

Abstract: This study aimed to evaluate multi-leaf collimator (MLC) positional accuracy by using an electronic portal imaging device (EPID) and radiochromic EBT3 film. Furthermore, the MLC’s positional accuracy at different gantry and collimator angles of a… read more here.

Keywords: collimator; positional accuracy; ebt3 film; film ... See more keywords