Combining multispectral reflectance and fluorescence imaging for identifying bruises and stem-end/calyx regions on Golden Delicious apples

  • Juan Xing
  • Romdhane Karoui
  • Josse De Baerdemaeker
Original Paper
First Online:
Received:
Accepted:

Abstract

As a part of the project for detecting bruises on Golden Delicious apple using vision system, the present paper shows a method that could separate the stem-end/calyx regions from the true bruises by combining the information of hyperspectral reflectance and fluorescence images. The images were scanned between 400 nm and 1,000 nm with a hyperspectral imaging system. Different light sources were constructed for capturing the reflectance and fluorescent images. Compared to the reflectance signal, the fluorescence signatures are much less intense, so that only the fluorescence of chlorophyll waveband was further examined (i.e., 685 nm). The analysis showed that the Principal Components scores images, which were based on the reflectance images, can be used for separating the bruised areas as well as the stem-end/calyx regions from the sound apple tissues; whereas only the stem-end/calyx was able to be recognized from the fluorescence images. For the samples investigated in this study, no stem-end/calyx regions were misrecognized as bruises; however, about 12% of bruised surfaces were misclassified as stem-end or calyx regions. All of the healthy tissues were correctly recognized as non-stem-end/calyx regions. The classification results indicated that combining multispectral reflectance and fluorescence imaging may help to identify the stem-end/calyx regions from the true bruised tissue and therefore to improve the accuracy for bruise detection on Golden Delicious apples.

Keywords

Apple Bruise Hyperspectral imaging Reflectance Fluorescence 
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Notes

Acknowledgements

The authors gratefully acknowledge the financial support of the Research Council of Catholic University of Leuven.

References

  1. 1.
    F. Geoola, F. Geoola, U.M. Peiper, J. Agric. Eng. Res. 58, 47–51 (1994)CrossRefGoogle Scholar
  2. 2.
    V. Leemans, H. Magein, M.-F. Destain, Comput. Electron. Agric. 20, 117–130 (1998)CrossRefGoogle Scholar
  3. 3.
    M.A. Shahin, E.W. Tollner, R.W. McClendon, H.R. Arabnia, Trans. ASAE 45, 1619–1627 (2002)Google Scholar
  4. 4.
    R.R. Wolfe, W.E. Sandlerm, Trans. ASAE 28, 641–644 (1985)Google Scholar
  5. 5.
    Q. Yang, Comput. Electron. Agric. 8, 31–42 (1993)CrossRefGoogle Scholar
  6. 6.
    X. Cheng, Y. Tao, Y.R. Chen, Y. Luo, Trans. ASAE 46, 551–558 (2003)Google Scholar
  7. 7.
    Y. Ying, H. Jing, Y. Tao, Zhang N., Trans. ASAE, 46, 157–162 (2003)Google Scholar
  8. 8.
    J. Kim, A. Mowat, P. Poole, N. Kasabov, Chemometrics Intell. Lab. Syst. 51, 201–216 (2000)CrossRefGoogle Scholar
  9. 9.
    S. Sivakesava, J. Irudayaraj, Appl. Eng. Agric. 16(5), 543–550 (2000)Google Scholar
  10. 10.
    D. Wang, S. Ram, F.E. Dowell, Trans. ASAE 45(6), 1943–1948 (2002)Google Scholar
  11. 11.
    Y. Tao, J. Shao, K. Skeeles, Y.R. Chen, Trans. ASAE 43(2), 469–474 (2000)Google Scholar
  12. 12.
    K. Chao, Y.R. Chen, W.R. Hruschka, B. Park, Trans. ASAE 17(1), 99–106 (2001)Google Scholar
  13. 13.
    C. Hsieh, Y.R. Chen, B.P. Dey, D.E. Chan, Trans. ASAE 45(2), 459–469 (2002)Google Scholar
  14. 14.
    P.M. Mehl, K. Chao, M. Kim, Y.R. Chen, Trans. ASAE 18(2), 219–226 (2002)Google Scholar
  15. 15.
    A. Peirs, N. Scheerlinck, J. De Baerdemaeker, B.M. Nicolaï, in Proceedings of EurAgEng 2002, Budapest, Hungary, Paper number: 02-PH-028 (2002)Google Scholar
  16. 16.
    G. Polder, G.W.A.M. Van der Heijden, I.T. Young, Trans. ASAE 45(4), 1155–1161 (2002)Google Scholar
  17. 17.
    M.S. Kim, A.M. Lefcourt, K. Chao, Y.R. Chen, I. Kim, D.E. Chan, Trans. ASAE 45(6), 2027–2037 (2002)Google Scholar
  18. 18.
    I. Kavdir, D.E. Guyer, Trans. ASAE 45(6), 1995–2005 (2002)Google Scholar
  19. 19.
    W.B. Herppich, in The Proceedings of Fruit, nut and Vegetable Production Engineering, pp. 609–619 (2001)Google Scholar
  20. 20.
    J. Soukupová, S. Smatanová, A. Jegorov, L. Nedbal, M. Trtílek, in The Proceedings of Fruit, nut and Vegetable Production Engineering, pp. 615–625 (2001)Google Scholar
  21. 21.
    A.M. Nazir, P. Rufino, M.B. Randolph, Chlorophyll fluorescence and whole fruit senescene in Golden Delicious apple. http://www.optisci.com/paper/paper2.htm [accessed 15 October 2003]
  22. 22.
    M.S. Kim, A.M. Lefcourt, Y.R. Chen, I. Kim, D.E. Chan, K. Chao, Trans. ASAE 45(6), 2039–2047 (2002)Google Scholar
  23. 23.
    D.P. Ariana, B.P. Shrestha, D.E. Guyer, An ASAE Meeting Paper NO. 033120, Nevada, USA (2003)Google Scholar
  24. 24.
    C. Buschmann, G. Langsdorf, H.K. Lichtenthaler, Photosynthetica 38(4), 483–491 (2000)CrossRefGoogle Scholar
  25. 25.
    J. Xing, C. Bravo, P. Jancsok, H. Ramon, J. De Baerdemaeker, Biosyst. Eng. 90(1), 27–36 (2005)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Juan Xing
    • 1
    • 2
  • Romdhane Karoui
    • 3
  • Josse De Baerdemaeker
    • 1
  1. 1.Division of Mechatronics, Biostatistics and Sensors, Department of BiosystemsCatholic University of LeuvenLeuvenBelgium
  2. 2.Department of Biosystems and Agricultural EngineeringMichigan State UniversityEast LansingUSA
  3. 3.Unité de Recherche «Typicité des Produits Alimentaires»LempdesFrance

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