Automatic Rice Crop Height Measurement Using a Field Server and Digital Image Processing

Rice crop height is an important agronomic trait linked to plant type and yield potential. This research developed an automatic image processing technique to detect rice crop height based on images taken by a digital camera attached to a field server. The camera acquires rice paddy images daily at a...

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Main Authors: Tanakorn Sritarapipat, Preesan Rakwatin, Teerasit Kasetkasem
Format: Article
Language:English
Published: MDPI AG 2014-01-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/14/1/900
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author Tanakorn Sritarapipat
Preesan Rakwatin
Teerasit Kasetkasem
author_facet Tanakorn Sritarapipat
Preesan Rakwatin
Teerasit Kasetkasem
author_sort Tanakorn Sritarapipat
collection DOAJ
description Rice crop height is an important agronomic trait linked to plant type and yield potential. This research developed an automatic image processing technique to detect rice crop height based on images taken by a digital camera attached to a field server. The camera acquires rice paddy images daily at a consistent time of day. The images include the rice plants and a marker bar used to provide a height reference. The rice crop height can be indirectly measured from the images by measuring the height of the marker bar compared to the height of the initial marker bar. Four digital image processing steps are employed to automatically measure the rice crop height: band selection, filtering, thresholding, and height measurement. Band selection is used to remove redundant features. Filtering extracts significant features of the marker bar. The thresholding method is applied to separate objects and boundaries of the marker bar versus other areas. The marker bar is detected and compared with the initial marker bar to measure the rice crop height. Our experiment used a field server with a digital camera to continuously monitor a rice field located in Suphanburi Province, Thailand. The experimental results show that the proposed method measures rice crop height effectively, with no human intervention required.
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spelling doaj.art-e8486ee7013140cb9965c54c6d2b4a182022-12-22T04:23:30ZengMDPI AGSensors1424-82202014-01-0114190092610.3390/s140100900s140100900Automatic Rice Crop Height Measurement Using a Field Server and Digital Image ProcessingTanakorn Sritarapipat0Preesan Rakwatin1Teerasit Kasetkasem2Geo-Informatics and Space Technology Development Agency (Public Organization), 120, The Government Complex (Building B), Chaeng Wattana Road, Laksi District, Bangkok 10210, ThailandGeo-Informatics and Space Technology Development Agency (Public Organization), 120, The Government Complex (Building B), Chaeng Wattana Road, Laksi District, Bangkok 10210, ThailandFaculty of Engineering, Kasetsart University, Jatujak, Bangkok 10900, ThailandRice crop height is an important agronomic trait linked to plant type and yield potential. This research developed an automatic image processing technique to detect rice crop height based on images taken by a digital camera attached to a field server. The camera acquires rice paddy images daily at a consistent time of day. The images include the rice plants and a marker bar used to provide a height reference. The rice crop height can be indirectly measured from the images by measuring the height of the marker bar compared to the height of the initial marker bar. Four digital image processing steps are employed to automatically measure the rice crop height: band selection, filtering, thresholding, and height measurement. Band selection is used to remove redundant features. Filtering extracts significant features of the marker bar. The thresholding method is applied to separate objects and boundaries of the marker bar versus other areas. The marker bar is detected and compared with the initial marker bar to measure the rice crop height. Our experiment used a field server with a digital camera to continuously monitor a rice field located in Suphanburi Province, Thailand. The experimental results show that the proposed method measures rice crop height effectively, with no human intervention required.http://www.mdpi.com/1424-8220/14/1/900rice crop height measurementfield serverdigital image processingimage segmentation
spellingShingle Tanakorn Sritarapipat
Preesan Rakwatin
Teerasit Kasetkasem
Automatic Rice Crop Height Measurement Using a Field Server and Digital Image Processing
Sensors
rice crop height measurement
field server
digital image processing
image segmentation
title Automatic Rice Crop Height Measurement Using a Field Server and Digital Image Processing
title_full Automatic Rice Crop Height Measurement Using a Field Server and Digital Image Processing
title_fullStr Automatic Rice Crop Height Measurement Using a Field Server and Digital Image Processing
title_full_unstemmed Automatic Rice Crop Height Measurement Using a Field Server and Digital Image Processing
title_short Automatic Rice Crop Height Measurement Using a Field Server and Digital Image Processing
title_sort automatic rice crop height measurement using a field server and digital image processing
topic rice crop height measurement
field server
digital image processing
image segmentation
url http://www.mdpi.com/1424-8220/14/1/900
work_keys_str_mv AT tanakornsritarapipat automaticricecropheightmeasurementusingafieldserveranddigitalimageprocessing
AT preesanrakwatin automaticricecropheightmeasurementusingafieldserveranddigitalimageprocessing
AT teerasitkasetkasem automaticricecropheightmeasurementusingafieldserveranddigitalimageprocessing