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

一相机三维测量评价水果表面与内在品质关系的方法

• 批准号: 12660229
• 负责人: TOJO Seishu
• 金额: $ 0.45万
• 依托单位: Tokyo University of Agriculture and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12660229/
• 关键词: fruit surface; surface image; surface mapping; internal quality; sugar concentration; optical image

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.

在第一年，表面映射机及其软件旨在获取光学表面图像并从光学表面图像中制作合成图像。在第二年，使用开发的表面映射设备进行了有关水果表面与内部质量之间关系的实验研究。苹果被用作测试水果，因为生产者和消费者选择了观看其表面图像的苹果。测试了5种3种品种，“ Mutsu”，“ Sun-Fuji”和“ Kogyoku”。表面图像是通过表面映射设备拍摄的，并用Brix糖浓度设备在每个苹果的40个样品中测量表面下方的糖浓度。 RGB的亮度对表面映射图像进行了分析。 RGB亮度的分布是在某个部分分开的区域中计算的。图像的特征是平均值和分布的差异与分裂的大小相对于分布的差异。颜色分布的评估在他的转变后进行了分析。 MUTSU的数据显示了颜色分布与糖分分布之间的显着关系。阳光和kogyoku之间的颜色和糖分分布之间没有牢固的关系。

项目成果

S.Tojo, K.Watanabe: "Water Movement in Growth Medium Containing Biological Waste."Proceedings The XIV Memorial CIGR World Congress 2000. 682-686 (2000)

S.Tojo, K.Watanabe：“含有生物废物的生长培养基中的水运动”。2000 年第十四届 CIGR 世界大会记录。682-686 (2000)

S.Tojo, K.Watanabe: "Water Movement in Growth Medium Containing Biological Waste. 682-686"Proceeding The XIV Memorial CIGR World Congress 2000. 682-686 (2000)

S.Tojo, K.Watanabe：“含有生物废物的生长培养基中的水运动。682-686”在 2000 年第 XIV 纪念 CIGR 世界大会上进行。682-686 (2000)