seminar i on agricultural process engineering 農産加工学演習 i
TRANSCRIPT
Seminar I on Agricultural Process Engineering農産加工学演習 I
No.5
農学研究科 地域環境科学専攻農学研究科 地域環境科学専攻
近藤 直・清水 浩近藤 直・清水 浩
Naoshi Kondo, Hiroshi ShimizuDivision of Environmental Science & Technology,
Graduate School of Agriculture, Kyoto University
KYOTO UNIVERSITY京都大学
AgriculturalAgriculturalProcessProcessEngineeringEngineeringLaboratoryLaboratory
An energy flow from light source tooutput of TV camera
Image grabber and/or PC
Illumination
TV camera
Object
KYOTO UNIVERSITY京都大学
AgriculturalAgriculturalProcessProcessEngineeringEngineeringLaboratoryLaboratory
Optical properties of objects- Spectral reflectance -
KYOTO UNIVERSITY京都大学
AgriculturalAgriculturalProcessProcessEngineeringEngineeringLaboratoryLaboratory
Spectral reflectance of plant parts
KYOTO UNIVERSITY京都大学
AgriculturalAgriculturalProcessProcessEngineeringEngineeringLaboratoryLaboratory
Spectral reflectance of soil
KYOTO UNIVERSITY京都大学
AgriculturalAgriculturalProcessProcessEngineeringEngineeringLaboratoryLaboratory
Oai=ΣE・Ra・Ti・L・S・Δλ (i=1,2)Obi=ΣE・Rb・Ti・L・S・Δλ (i=1,2)
C =Oa2‐Oa1
Oa1+Oa2
Ob2‐Ob1
Ob1+Ob2‐ a, b : object
i:filter number
KYOTO UNIVERSITY京都大学
AgriculturalAgriculturalProcessProcessEngineeringEngineeringLaboratoryLaboratory
0.850 0.357 0.466
0.999
1.1121
8 5 17 5 16 5 9 5 14 5
Wavelength Band C width
(nm) (nm)Tomato Cucumber Eggplant
980 670 550 800 550 880 520 670 520 680
Mandarin Orange Persimon
Most suitable wavelength bands to discriminate fruits from leaves
KYOTO UNIVERSITY京都大学
AgriculturalAgriculturalProcessProcessEngineeringEngineeringLaboratoryLaboratory
Tra
nsm
ittan
ce a
nd
Rel
ativ
e Se
nsiti
vity
(%)
Wavelength (nm)
400 500 600 700 800 900 1000 1100 300
60
20
40
80
0
B G R
500550
670850 970
Interference filter
100
Transmittance of filters suitablefor plant part discrimination
KYOTO UNIVERSITY京都大学
AgriculturalAgriculturalProcessProcessEngineeringEngineeringLaboratoryLaboratory
Spectral reflectance of beef, pork, andchicken
KYOTO UNIVERSITY京都大学
AgriculturalAgriculturalProcessProcessEngineeringEngineeringLaboratoryLaboratory
Spectral reflectance of insect bodies
KYOTO UNIVERSITY京都大学
AgriculturalAgriculturalProcessProcessEngineeringEngineeringLaboratoryLaboratory
Assignment
Describe what you learned on reflectance ofDescribe what you learned on reflectance ofplant parts (fruit, leaf, stem, and flowerplant parts (fruit, leaf, stem, and flowerpetal)petal) in several sentences.in several sentences.