TITLE

Detection of Cracks on Tomatoes Using a Hyperspectral Near-Infrared Reflectance Imaging System

AUTHOR(S)
Hoonsoo Lee; Kim, Moon S.; Danhee Jeong; Delwiche, Stephen R.; Kuanglin Chao; Byoung-Kwan Cho
PUB. DATE
October 2014
SOURCE
Sensors (14248220);Oct2014, Vol. 14 Issue 10, p18837
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The objective of this study was to evaluate the use of hyperspectral near-infrared (NIR) reflectance imaging techniques for detecting cuticle cracks on tomatoes. A hyperspectral NIR reflectance imaging system that analyzed the spectral region of 1000-1700 nm was used to obtain hyperspectral reflectance images of 224 tomatoes: 112 with and 112 without cracks along the stem-scar region. The hyperspectral images were subjected to partial least square discriminant analysis (PLS-DA) to classify and detect cracks on the tomatoes. Two morphological features, roundness (R) and minimum-maximum distance (D), were calculated from the PLS-DA images to quantify the shape of the stem scar. Linear discriminant analysis (LDA) and a support vector machine (SVM) were then used to classify R and D. The results revealed 94.6% and 96.4% accuracy for classifications made using LDA and SVM, respectively, for tomatoes with and without crack defects. These data suggest that the hyperspectral near-infrared reflectance imaging system, in addition to traditional NIR spectroscopy-based methods, could potentially be used to detect crack defects on tomatoes and perform quality assessments.
ACCESSION #
99152543

 

Related Articles

  • All-optical bistable switching and signal regeneration in a semiconductor layered.... He, J.; Cada, M. // Applied Physics Letters;8/16/1993, Vol. 63 Issue 7, p866 

    Examines the optical bistable switching and signal regeneration in a combined semiconductor distributed-feedback/Fabry-Perot structure. High switching contrast with almost zero reflectivity of the sample in the on-state; Duration of turn-off time of the device; Threshold power for structure...

  • An Optically Bistable Absorption Scheme with Additional Lateral Feedback Loops. Trofimov, V. A.; Shobukhov, A. V. // Optics & Spectroscopy;Apr2003, Vol. 94 Issue 4, p589 

    An optically bistable absorption system involving several feedback loops formed by the lateral supply of a fraction of light energy passed through a semiconductor with single- and two-photon absorption is analyzed. It is shown that multistability can be realized in the case of two-photon...

  • Influence of composition and roughness on the pigment mapping of paintings using mid-infrared fiberoptics reflectance spectroscopy (mid-IR FORS) and multivariate calibration. Sessa, Clarimma; Bagán, Héctor; García, Jose // Analytical & Bioanalytical Chemistry;Oct2014, Vol. 406 Issue 26, p6735 

    Mid-infrared fiberoptics reflectance spectroscopy (mid-IR FORS) is a very interesting technique for artwork characterization purposes. However, the fact that the spectra obtained are a mixture of surface (specular) and volume (diffuse) reflection is a significant drawback. The physical and...

  • Quantitative Analysis of Naturally Colored Cotton and White Cotton Blends by UV-VIS Diffuse Reflectance Spectroscopy. Hu, X.; Zhang, Q.; Yu, H.; Zhao, D.; Dong, S.; Zhou, W.; Tang, Z. // Journal of Applied Spectroscopy;Jan2015, Vol. 81 Issue 6, p949 

    A new method was discussed to quantitatively analyze the blend ratio of naturally colored cotton (NCC) and white cotton (WC) by UV-vis diffuse reflectance spectroscopy (UV-vis DRS). Three kinds of spectroscopy parameters, diffuse reflectance, reflection absorbance, and the K-M function, were...

  • Bistability in coupled cavity semiconductor lasers. Dutta, N. K.; Agrawal, G. P.; Focht, M. W. // Applied Physics Letters;1984, Vol. 44 Issue 1, p30 

    Experimental results on bistable operation of coupled cavity semiconductor lasers are presented. The light level at the upper and lower states can be controlled by varying the injection current. A model calculation of the coupled cavity laser system shows that the bistability is due to...

  • Bistability of an optical response of a photonic crystal with a dense resonant medium as a defect. Novitsky, D.; Mikhnevich, S. // Optics & Spectroscopy;Jun2008, Vol. 104 Issue 6, p896 

    Optical characteristics of a system consisting of a photonic crystal with a defect layer of a dense resonant medium described by the modified Bloch equation are considered. Transmission spectra are calculated and regions of existence of bistable optical response of the system are found. It is...

  • The effect of boundary adaptivity on hexagonal ordering and bistability in circularly confined quasi hard discs. Williams, Ian; Oğuz, Erdal C.; Jack, Robert L.; Bartlett, Paul; Löwen, Hartmut; Royall, C. Patrick // Journal of Chemical Physics;3/7/2014, Vol. 140 Issue 9, p104907-1 

    The behaviour of materials under spatial confinement is sensitively dependent on the nature of the confining boundaries. In two dimensions, confinement within a hard circular boundary inhibits the hexagonal ordering observed in bulk systems at high density. Using colloidal experiments and Monte...

  • Retrieval of a Temporal High-Resolution Leaf Area Index (LAI) by Combining MODIS LAI and ASTER Reflectance Data. Yonghua Qu; Wenchao Han; Mingguo Ma // Remote Sensing;2015, Vol. 7 Issue 1, p195 

    This paper aims to retrieve temporal high-resolution LAI derived by fusing MOD15 products (1 km resolution), field-measured LAI and ASTER reflectance (15-m resolution). Though the inversion of a physically based canopy reflectance model using high-resolution satellite data can produce...

  • Dynamic Reflectance of Tin Shocked from its Beta to BCT Phase. Stevens, Gerald D.; La Lone, Brandon M.; Dale Turley, W.; Veeser, Lynn R. // AIP Conference Proceedings;2017, Vol. 1793 Issue 1, p1 

    Shock-induced phase transitions have historically been inferred by features in loading/unloading velocity wave profiles, which arise due to volume or sound speed differences between phases. In 2010, we used a flash-lampilluminated multiband reflectometer to demonstrate that iron, tin, cerium,...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics