3D Body Scanning Measurement System Associated with RF Imaging, Zero-padding and Parallel Processing
This work presents a novel signal processing method for high-speed 3D body measurements using millimeter waves with a general processing unit (GPU) and zero-padding fast Fourier transform (ZPFFT). The proposed measurement system consists of a radio-frequency (RF) antenna array for a penetrable measu...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2016-04-01
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| Series: | Measurement Science Review |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/msr-2016-0011 |
| _version_ | 1818734022311804928 |
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| author | Kim Hyung Tae Jin Kyung Chan Kim Seung Taek Kim Jongseok Choi Seung-Bok |
| author_facet | Kim Hyung Tae Jin Kyung Chan Kim Seung Taek Kim Jongseok Choi Seung-Bok |
| author_sort | Kim Hyung Tae |
| collection | DOAJ |
| description | This work presents a novel signal processing method for high-speed 3D body measurements using millimeter waves with a general processing unit (GPU) and zero-padding fast Fourier transform (ZPFFT). The proposed measurement system consists of a radio-frequency (RF) antenna array for a penetrable measurement, a high-speed analog-to-digital converter (ADC) for significant data acquisition, and a general processing unit for fast signal processing. The RF waves of the transmitter and the receiver are converted to real and imaginary signals that are sampled by a high-speed ADC and synchronized with the kinematic positions of the scanner. Because the distance between the surface and the antenna is related to the peak frequency of the conjugate signals, a fast Fourier transform (FFT) is applied to the signal processing after the sampling. The sampling time is finite owing to a short scanning time, and the physical resolution needs to be increased; further, zero-padding is applied to interpolate the spectra of the sampled signals to consider a 1/m floating point frequency. The GPU and parallel algorithm are applied to accelerate the speed of the ZPFFT because of the large number of additional mathematical operations of the ZPFFT. 3D body images are finally obtained by spectrograms that are the arrangement of the ZPFFT in a 3D space. |
| first_indexed | 2024-12-17T23:58:45Z |
| format | Article |
| id | doaj.art-6c91568114224523a3a937f6a1365fef |
| institution | Directory Open Access Journal |
| issn | 1335-8871 |
| language | English |
| last_indexed | 2024-12-17T23:58:45Z |
| publishDate | 2016-04-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Measurement Science Review |
| spelling | doaj.art-6c91568114224523a3a937f6a1365fef2022-12-21T21:28:00ZengSciendoMeasurement Science Review1335-88712016-04-01162778610.1515/msr-2016-0011msr-2016-00113D Body Scanning Measurement System Associated with RF Imaging, Zero-padding and Parallel ProcessingKim Hyung Tae0Jin Kyung Chan1Kim Seung Taek2Kim Jongseok3Choi Seung-Bok4Smart Manufacturing Technology Group, KITECH, YangDae-GiRo road, 89, 331-825, CheonAn, South KoreaSmart Manufacturing Technology Group, KITECH, YangDae-GiRo road, 89, 331-825, CheonAn, South KoreaSmart Manufacturing Technology Group, KITECH, YangDae-GiRo road, 89, 331-825, CheonAn, South KoreaSmart Manufacturing Technology Group, KITECH, YangDae-GiRo road, 89, 331-825, CheonAn, South KoreaSmart Structures and Systems Laboratory, Department of Mechanical Engineering, Inha University, Incheon 402-751, South KoreaThis work presents a novel signal processing method for high-speed 3D body measurements using millimeter waves with a general processing unit (GPU) and zero-padding fast Fourier transform (ZPFFT). The proposed measurement system consists of a radio-frequency (RF) antenna array for a penetrable measurement, a high-speed analog-to-digital converter (ADC) for significant data acquisition, and a general processing unit for fast signal processing. The RF waves of the transmitter and the receiver are converted to real and imaginary signals that are sampled by a high-speed ADC and synchronized with the kinematic positions of the scanner. Because the distance between the surface and the antenna is related to the peak frequency of the conjugate signals, a fast Fourier transform (FFT) is applied to the signal processing after the sampling. The sampling time is finite owing to a short scanning time, and the physical resolution needs to be increased; further, zero-padding is applied to interpolate the spectra of the sampled signals to consider a 1/m floating point frequency. The GPU and parallel algorithm are applied to accelerate the speed of the ZPFFT because of the large number of additional mathematical operations of the ZPFFT. 3D body images are finally obtained by spectrograms that are the arrangement of the ZPFFT in a 3D space.https://doi.org/10.1515/msr-2016-0011whole body scannerrf imaginggeneral processing unitparallel processingzero-padding |
| spellingShingle | Kim Hyung Tae Jin Kyung Chan Kim Seung Taek Kim Jongseok Choi Seung-Bok 3D Body Scanning Measurement System Associated with RF Imaging, Zero-padding and Parallel Processing Measurement Science Review whole body scanner rf imaging general processing unit parallel processing zero-padding |
| title | 3D Body Scanning Measurement System Associated with RF Imaging, Zero-padding and Parallel Processing |
| title_full | 3D Body Scanning Measurement System Associated with RF Imaging, Zero-padding and Parallel Processing |
| title_fullStr | 3D Body Scanning Measurement System Associated with RF Imaging, Zero-padding and Parallel Processing |
| title_full_unstemmed | 3D Body Scanning Measurement System Associated with RF Imaging, Zero-padding and Parallel Processing |
| title_short | 3D Body Scanning Measurement System Associated with RF Imaging, Zero-padding and Parallel Processing |
| title_sort | 3d body scanning measurement system associated with rf imaging zero padding and parallel processing |
| topic | whole body scanner rf imaging general processing unit parallel processing zero-padding |
| url | https://doi.org/10.1515/msr-2016-0011 |
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