Design of characteristics of optical filter set for prediction and visualization of fat content in raw beef cuts

Ken-ichi Kobayashi, Ken Nishino, Bjørn Skovlund Dissing, Masaaki Mori, Toshihiro Toyota, Shigeki Nakauchi

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    Abstract

    Quantification of specific compounds in a food-matrix is a very important factor for an overall quantification of the quality. Near infrared (NIR) hyperspectral imaging is a powerful technique to quantify specific constituents as well as its spatial distribution of the foodmatrix. Hyperspectral imaging is however very expensive. We propose a way to design a simple measurement system consisting of a NIR sensitive monochrome camera together with a small set of optical filters to estimate and visualize a specific food compound without requiring a full hyperspectral device. Based on a set of hyperspectral measurements of beef and physical and chemical analysis of the fat within the beef, we propose a method to design a set of ideal Band Pass Filters (BPF), as small as possible while still maintaining predictability of fat content. The results show that 2 filters is a suitable amount of filters for prediction.
    Original languageEnglish
    Title of host publicationScandinavian Workshop on Imaging Food Quality 2011 : Ystad, May 27, 2011 - Proceedings
    Number of pages98
    Place of PublicationKgs. Lyngby, Denmark
    PublisherTechnical University of Denmark
    Publication date2011
    Pages23-28
    Publication statusPublished - 2011
    EventScandinavian Workshop on Imaging Food Quality 2011 - Ystad, Sweden
    Duration: 27 May 201127 May 2011
    http://www2.imm.dtu.dk/projects/SWIFQ/

    Workshop

    WorkshopScandinavian Workshop on Imaging Food Quality 2011
    CountrySweden
    CityYstad
    Period27/05/201127/05/2011
    OtherHeld in conjunction with the Scandinavian Conference on Image Analysis (SCIA 2011)
    Internet address
    SeriesIMM-Technical Report-­2011
    Number15

    Keywords

    • Optical filter
    • Beef
    • NIR hyperspectral imaging
    • Content

    Cite this

    Kobayashi, K., Nishino, K., Dissing, B. S., Mori, M., Toyota, T., & Nakauchi, S. (2011). Design of characteristics of optical filter set for prediction and visualization of fat content in raw beef cuts. In Scandinavian Workshop on Imaging Food Quality 2011: Ystad, May 27, 2011 - Proceedings (pp. 23-28). Technical University of Denmark. IMM-Technical Report-­2011, No. 15 http://www2.imm.dtu.dk/projects/SWIFQ/