在过去的几十年里,成像和光谱学技术在果蔬质量无损评价中得到了迅速发展和广泛应用。物理属性(包括尺寸,形状,颜色,position,和温度)和生物学特性(包括品种,季节,水果和蔬菜的成熟度和地理来源)各不相同。农产品的各种物理和生物学特性影响着其与入射光的光传播特性和相互作用行为,从而降低了质量检验的准确性。已经在图像校正和光谱补偿方法中进行了许多尝试以提高检查精度。本文对物理和生物变异性的影响进行了详细的总结,以及通过使用成像和光谱学技术消除或减少水果和蔬菜质量无损检测影响的校正和补偿方法。讨论并总结了解决方法的优缺点。此外,报告了未来的挑战和潜在趋势。
Over the past decades, imaging and spectroscopy techniques have been rapidly developing and widely applied in nondestructive fruit and vegetable quality assessment. The physical properties (including size, shape, color, position, and temperature) and biological properties (including cultivar, season, maturity level and geographical origin) of fruits and vegetables vary from one to another. A great variety of physical and biological properties of agricultural products influence the optical propagation properties and interaction behaviors with incident light, thus decreasing the quality inspection accuracy. Many attempts have been made in image correction and spectral compensation methods to improve the inspection accuracy. This paper gives a detailed summary about influence of physical and biological variability, as well as the correction and compensation methods for eliminating or reducing the effects in fruit and vegetable quality nondestructive inspection by using imaging and spectroscopy techniques. The advantages and disadvantages of the solution methods are discussed and summarized. Additionally, the future challenges and potential trends are also reported.