Journal
FOOD RESEARCH INTERNATIONAL
Volume 62, Issue -, Pages 326-343Publisher
ELSEVIER
DOI: 10.1016/j.foodres.2014.03.012
Keywords
Computer vision; Hyperspectral imaging; Multispectral imaging; External quality inspection; Fruits; Vegetables
Categories
Funding
- National Natural Science Foundation of China [31301236]
- National Key Technology RD Program [2014BAD21B01]
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Appearance is a very important sensory quality attribute of fruits and vegetables, which can influence not only their market value, consumer's preferences and choice but also their internal quality to some extent. External quality of fruits and vegetables is generally evaluated by considering their color, texture, size, shape, as well as the visual defects. External quality inspection of fruits and vegetables manually is a time-consuming and labor intensive work Over the past decades, computer vision systems, including traditional computer vision system, hyperspectral computer vision system, and multispectral computer vision system, have been widely used in the food industry, and proved to be scientific and powerful tools for the automatic external quality inspection of food and agricultural products. Many researches based on spatial image and/or spectral image processing and analysis have been published proposing the use of computer vision technique in the field of external quality inspection of fruits and vegetables. This paper presents a detailed overview of the comparative introduction, latest developments and applications of computer vision systems in the external quality inspection of fruits and vegetables. Additionally, the principal components, basic theories, and corresponding processing and analytical methods are also reported in this paper. (C) 2014 Elsevier Ltd. All rights reserved.
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