Bianual Jan 2014 Spectral Extraction of Palm Oil Tree
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Transcript of Bianual Jan 2014 Spectral Extraction of Palm Oil Tree
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Spectral Extraction From Palm Oil Tree Towards The Development Of Spectral Library Of Vegetation Stress For Hyperspectral Data
Muhammad Ikhwan bin Jamaludin [G02450]Civil Engineering by [email protected]
SV : AP Dr. Abd. Nasir Matori
Jan. 2014 PG Biannual Conf. - 14 &16 May 2014
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PRESENTATION OUTLINE• Introduction• Literature Review• Methods and Materials• Result & Discussion• Conclusion
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BACKGROUND OF RESEARCH
Spectral Signature• All elements in this universe has its own unique spectral signature in
the form for reflectance and wavelengths
Hydrocarbon Microseepage• Seepage of hydrocarbon from reservoir to surface• Triggered by small fracture from cap rock or other plausible
phenomena causing fluid to flow out of reservoir to the surface
Effect on Vegetation & Soil• Loss of energy from seepage travelling upwards causing stress on soils• Soils under stress, plus the hydrocarbon components effect might
cause further effect to vegetation on the surface
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Objective(s)
Main objective
Sub objective
• To assess the procedure of spectral signature extraction of vegetation
• To identify the parameters that have potential to discriminating vegetation species
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Literature ReviewSpectral Library• Data archives that consist of spectral signatures measured on
selected natural and/or man-made materials (Lukas et. al, 2011)• Main purposes:• Use of data in remote sensing as in-situ reflectance measurements for the
calibration and/or end-members selection for further processing (Selige et. al, 2006)
• For rapid laboratory assessment by diffuse reflectance spectroscopy, DRS (Viscarra et. al, 2006)
• Example : Jet Propulsion Library (JPL), John Hopkins University (JHU) Spectral Library and NASA’s ASTER Spectral Library
• Collection includes spectra of materials & minerals in the range covering the visible through thermal IR wavelength region (0.4-15.4µm)
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Literature Review(cont.)
• Vegetated and non-vegetated surfaces• Vegetation Spectral Signature
• Visible spectral region – chlorophyll absorption (0.50 um – 0.60 um)• Near-Infrared Spectral Region – distinguishing vegetation types• Middle -Infrared Spectral Region – water absorption and detect stressed plant
• The Red Edge
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Literature Review(cont.)
Spectral Library• No spectral data for hydrocarbon seepage recorded in any
spectral library collection• Around 5223 soil spectra signatures collected by Viscarra
Rossel on-going development, under soil spectrometry group (Viscarra, 2008)
• Methods used to classify the soil spectra signatures can be incorporated for seepage signatures characterization in this project
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Material and Method-Instrument
ASD FieldSpec 4 Spectroradiometer Pistol Grip - ASD FieldSpec 4 Spectroradiometer
SPECIFICATIONWavelength 350 – 2500 nm
Resolution 3 nm @ 700 nm and 10 nm @ 1400/2100nm
Scanning time 100 milliseconds
Supporting software
RS3™ spectral acquisition software, Seamless interface with ENVI®, ASD ViewSpec™ Pro for post processingOptional Indico® Pro
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Spectral Extraction
Codes Samples Frond Part of Leaf Leaf side Part of leaf
DescriptionsSample ASample B Sample C
Frond (start from the
root)
B-BeginningC-Center
E-End
Right or left
B-BeginningM-Middle
E-End
Example C 7 E R B
Explanation Sample C Frond 7 End Right Beginning
Palm oil samples A, B, and C aged 8 – 9 months
Spectral sampling codes
1 23
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RESEARH METHODOLOGY
Vegetation
Raw ASD spectra
Spectral library
Spectralon corrected library
Library without enormous spectra
Processed spectral library
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RESULTS & DISCUSSION(cont.)
Spectral extraction sample A
Spectral extraction sample C
Spectral extraction sample B
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RESULTS & DISCUSSION(cont.)
visible
NIR
MIR
• An amount of noise could easily detect at range 0.35 um – 0.44 um in the visible region.
• 0.50 – 0.60 um, the reflectance shows the highest peak in the visible region due to the photosynthesis process.
• While in the other region (Near-infrared and Middle-infrared), show the typical result of normal vegetation should do due to the presence of water vapor and the leaf structure.
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RESULTS & DISCUSSION(cont.)• As a full procedure of extraction already been discussed here,
this said procedure later will be used as to extract palm oil with hydrocarbon influence for the development of hydrocarbon vegetation stressed.
• It can be further continued using the development, spectral library to find hydrocarbon signatures in the real field through remote sensing analysis.
• This can play a major milestone for oil and gas exploration activities since this method requires less cost, and more rapid analysis.
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SUMMARY• This paper has shown the required result in presenting the
procedure, extracting spectral data using spectroradiometer. • Based on the raw spectral result presented here, it is safely
said that this research is going on track and will be getting a positive result once the raw spectral data were processed to develop the spectral library of vegetation.
• Further study will be focused on development of spectral library of stress plant seepage hydrocarbon.
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