CoーOperative Research of the Measuring Method of Agricultural Products

近年来，随着农业新技术的发展，为了提高农产品的品质，机器视觉技术被应用到植物栽培、农产品的颜色分选和识别等方面。然而，为了建立关于上述改进技术的利用。要明确农产品的属性。因此，本研究探讨了影响农产品品质的属性。主要研究结果如下：(1)大米的风味与从干燥到碾磨的加工过程密切相关。(2)利用电学和磁学的方法对栽培植株的生长进行检测是在可能的范围内。(3)通过水势的测量，番茄的破损性能在可能的范围内。(4)建立了柿单宁和柿糖的检测方法。(5)由于水果表面颜色的变化，使得对可见光区缺陷水果的检测变得复杂。而腮红和底色曲线在近红外区的光谱反射率值基本相同。光谱反射率对果实表面的正常和损伤有明显的区分。(6)对距传感器几十cm范围内的作物形状进行测量，精度较高，并能根据不同的颜色将果实与叶、茎区分开来。(7)农产品内在品质的评价方法，透过率的测量在可能的范围内，这些研究被编辑为农产品特性研究。

Recently, for improving agricultural product qualities using of developing of new agricultural technology, the technique of a machine vision system has been using in the part of the plant cultivation, the color sorting and recognization of agricultural products. However, for establishing the utilization with respect to above improving techniques. It is necessary to clear the properties of agricultural products. Consequently, the study dealt with the properties with respect to the agricultural product qualities. The main results were as follow :(1) It is clear that the rice taste relates to process from drying to milling.(2) The growth measuring of a culture plant was within the range of possibility by using of the method of electricity and magnetism.(3) The performance of tomato break was within of possibility by the measuring of water potential.(4) The measuring method of persimmon tannin and of persimmon sugar was established.(5) The detection of fruits defected in visible wavelength region was complicated by the variation in color over the surface of fruits. But blush and ground color curves had about same values of spectral reflectance in near infrared region. And the spectral reflectance drew the clear distinction between normal and damage of fruit surface.(6) The shape of the crop within the distance of several tens cm from the sensor could be measured with fairly good accuracy and the fruits could be distinguished from leaves and stems by the difference color.(7) The estimating method of inner quality of agricultural products was within the range of possbility by measuring of a sound transmissibility.These above studies were edited as the agricultural product property research.