For a quantitative understanding of light interaction with fruit tissue, it is critical to obtain two fundamental parameters： the absorption coefficient and the scattering coefficient of the tissue. This study was to...For a quantitative understanding of light interaction with fruit tissue, it is critical to obtain two fundamental parameters： the absorption coefficient and the scattering coefficient of the tissue. This study was to investigate the optical properties of kiwifruit tissue at the wavelength of 632.8 nm. The total reflectance and total transmittance of kiwifruit tissue from three parts （including the flesh part, the seed part, and the seed-base part） were measured using a single integrating sphere system. Based on the measured spectral signals, the absorption coefficient pa and the reduced scattering coefficient Ps＇ of kiwifruit tissue were calculated using the inverse adding-doubling （lAD） method. Phantoms made from Intralipid 20% and India ink as well as a Biomimic solid phantom were used for system validation The mean values of μa and μs＇ of different parts of the kiwifruit were 0.031-0.308 mm-1 and 0.120-0.946 mm-1, respectively. The results showed significant differences among the Pa and Ps＇ of the three parts of the kiwifruit. The results of this study confirmed the importance of studying the optical properties for a quantitative understanding of light interaction with fruit tissue. Further investigation of fruit optical properties will be extended to a broader spectral region and different kinds of fruits.展开更多
基金Project supported by the National Natural Science Foundation of China(No.31401289)the Zhejiang Provincial Natural Science Foundation of China(No.LQ12C10001)the Education Department of Zhejiang Province(No.Y201122219),China
文摘For a quantitative understanding of light interaction with fruit tissue, it is critical to obtain two fundamental parameters： the absorption coefficient and the scattering coefficient of the tissue. This study was to investigate the optical properties of kiwifruit tissue at the wavelength of 632.8 nm. The total reflectance and total transmittance of kiwifruit tissue from three parts （including the flesh part, the seed part, and the seed-base part） were measured using a single integrating sphere system. Based on the measured spectral signals, the absorption coefficient pa and the reduced scattering coefficient Ps＇ of kiwifruit tissue were calculated using the inverse adding-doubling （lAD） method. Phantoms made from Intralipid 20% and India ink as well as a Biomimic solid phantom were used for system validation The mean values of μa and μs＇ of different parts of the kiwifruit were 0.031-0.308 mm-1 and 0.120-0.946 mm-1, respectively. The results showed significant differences among the Pa and Ps＇ of the three parts of the kiwifruit. The results of this study confirmed the importance of studying the optical properties for a quantitative understanding of light interaction with fruit tissue. Further investigation of fruit optical properties will be extended to a broader spectral region and different kinds of fruits.
