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

第一年，设计了地面成图机及其软件，获取光学表面图像，并将光学表面图像合成成图像。第二年，利用研制的表面制图仪对果实表面与内在品质的关系进行了试验研究。苹果被用作测试水果，因为生产者和消费者会根据苹果的表面形象来选择苹果。对“Mutsu”、“Sun-Fuji”和“Kogyoku”3个品种5件进行了测试。用表面成图仪拍摄表面图像，用Brix糖浓度仪测量表面下5mm处的糖浓度，每个苹果40个样品。利用RGB亮度对地表映射图像进行分析。在某一截面所划分的区域内计算RGB亮度的分布。根据分割的大小，用分布的均值和方差对图像进行表征。分析了HIS变换后的色彩分布评价。Mutsu的数据表明，颜色分布与糖的分布有显著的关系。sunfuji和Kogyoku在颜色和糖分布之间没有很强的关系。

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.