Evaluation method of relation between fruit surface and its internal quality by three dimensional measurement with one camera

在第一年，设计了表面测绘机及其软件，以获取光学表面图像并将光学表面图像合成图像。第二年，以苹果为试果，利用自行研制的表面成像仪进行了果实表面与内部品质关系的实验研究，因为生产者和消费者都是通过观察苹果的表面图像来选择苹果的。对“Mutsu”、“Sun-Fuji”和“Kogyoku”3个品种的5个样品进行了试验。用表面测绘仪拍摄苹果表面图像，用白利糖度仪测定40个苹果样品表面下5 mm处的糖浓度。通过RGB的亮度对表面映射图像进行分析。在一定区域内划分的区域内计算RGB亮度的分布。图像的特征在于与平均值和方差的分布对分区的大小。分析了HIS变换后图像颜色分布的评价。Mutsu的数据表明，颜色分布和糖分布之间的显着相关性。太阳富士和太阳国的颜色与糖的分布没有很强的关系。

In the first year, the surface mapping machine and its software were designed to get the optical surface image and make a synthesized image from the optical surface images. In the second year, the experimental study on the relation between fruit surface and the internal quality was carried out using the developed surface mapping apparatus.Apple was used as a test fruit because the producers and the consumers select an apple watching its surface image. 5 pieces of 3 variety, "Mutsu", "Sun-Fuji" and "Kogyoku" were tested. The surface image was taken by the surface mapping apparatus and the sugar concentration at a point of 5mm under the surface was measured with Brix sugar concentration apparatus for 40 samples each apple. The analysis of the surface mapping image was carried out by the brightness of RGB. The distribution of RGB brightness was calculated in the area divided in a certain section. The image was characterized with the mean and the variance of distribution against the size of division. The evaluation of color distribution was analyzed after HIS transform. The data of Mutsu showed a significant relation between the color distribution and the sugar distribution. Sun-Fuji and Kogyoku have not a strong relation between the color and sugar distribution.