Sensor for Distance Estimation Using FFT of Images
In this paper, the problem of how to estimate the distance between an infrared emitter diode (IRED) and a camera from pixel grey-level intensities is examined from a practical standpoint. Magnitudes that affect grey level intensity were defined and related to the zero frequency component from the FF...
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| Format: | Article |
| Language: | English |
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MDPI AG
2009-12-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/9/12/10434/ |
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doaj-ae9b46a96c254a4f8f17808b94cb36752020-11-25T02:00:58ZengMDPI AGSensors1424-82202009-12-01912104341044610.3390/s91210434Sensor for Distance Estimation Using FFT of ImagesPedro R. FernándezCarlos A. LunaJosé L. LázaroAngel E. CanoIn this paper, the problem of how to estimate the distance between an infrared emitter diode (IRED) and a camera from pixel grey-level intensities is examined from a practical standpoint. Magnitudes that affect grey level intensity were defined and related to the zero frequency component from the FFT image. A general model was also described and tested for distance estimation over the range from 420 to 800 cm using a differential methodology. Method accuracy is over 3%. http://www.mdpi.com/1424-8220/9/12/10434/Fast Fourier Transformzero-frequency componentdistance estimationinfrareddifferential methodartificial vision |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Pedro R. Fernández Carlos A. Luna José L. Lázaro Angel E. Cano |
| spellingShingle |
Pedro R. Fernández Carlos A. Luna José L. Lázaro Angel E. Cano Sensor for Distance Estimation Using FFT of Images Sensors Fast Fourier Transform zero-frequency component distance estimation infrared differential method artificial vision |
| author_facet |
Pedro R. Fernández Carlos A. Luna José L. Lázaro Angel E. Cano |
| author_sort |
Pedro R. Fernández |
| title |
Sensor for Distance Estimation Using FFT of Images |
| title_short |
Sensor for Distance Estimation Using FFT of Images |
| title_full |
Sensor for Distance Estimation Using FFT of Images |
| title_fullStr |
Sensor for Distance Estimation Using FFT of Images |
| title_full_unstemmed |
Sensor for Distance Estimation Using FFT of Images |
| title_sort |
sensor for distance estimation using fft of images |
| publisher |
MDPI AG |
| series |
Sensors |
| issn |
1424-8220 |
| publishDate |
2009-12-01 |
| description |
In this paper, the problem of how to estimate the distance between an infrared emitter diode (IRED) and a camera from pixel grey-level intensities is examined from a practical standpoint. Magnitudes that affect grey level intensity were defined and related to the zero frequency component from the FFT image. A general model was also described and tested for distance estimation over the range from 420 to 800 cm using a differential methodology. Method accuracy is over 3%. |
| topic |
Fast Fourier Transform zero-frequency component distance estimation infrared differential method artificial vision |
| url |
http://www.mdpi.com/1424-8220/9/12/10434/ |
| work_keys_str_mv |
AT pedrorfernandez sensorfordistanceestimationusingfftofimages AT carlosaluna sensorfordistanceestimationusingfftofimages AT josellazaro sensorfordistanceestimationusingfftofimages AT angelecano sensorfordistanceestimationusingfftofimages |
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1724959688886321152 |