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The Efficiency of the Moire Technique for Three-Dimensional Measures of Grape bunches

Journal of Agricultural Science and Technology(B) 2016年第4期6卷 244-249页

作者： Juliana Aparecida Fracarolli Katia Cristina Suzigan Inacio Maria Dal Fabbro Department of Postharvest Technology School of Agricultural Engineering University of Campinas Campinas 13083-875 SP Brazil Department of Pre-processing Agricultural Products School of Agricultural Engineering University of Campinas Campinas 13083-875 SP Brazil Department of Farm Machinery School of Agricultural Engineering University of Campinas Campinas 13083-875 SP Brazil

This study was carried out in the University of Campinas to study the three-dimensional reconstruction of grape bunches through the application of the Moire technique as an alternative and innovative method, using low-cost equipment for data acquisition. This study proposed the three-dimensional visualization of grapes and topography on Xi axes through the Moire projection technique. The artificial grapes with a 20 cm long bunch and 18.45 mm average diameter for each grape were used. A projector was used to generate a grid with light and dark lines. The grape bunch was placed on a holder, illuminated by a sinusoidal grid and photographed. After processing the images, a three-dimensional map of the fruit and topography on Xi axes were obtained. The three-dimensional fruit observation allows the visualization of the higher and lower regions of the three-dimensional configuration through a color map. This result makes it possible to obtain size and shape of the grape bunch, allowing for the process automation of product selection and classification.

关键词： Vitis vinifera L. grape bunches Moire technique three-dimensional visualization

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Stony Mountains Turn Gold

引用

Beijing Review 2019年第20期62卷 28-29页

作者： Wang Hairong 不详

bunches of plump dark purple grapes hang from trellises in a vineyard in Siba Town in southwest China's Guangxi zhuang Autonomous *** the grapevines to the ground,one can see that they are rooted in stone cracks rathe... 详细信息

关键词： bunches rooted plump ground grapevines

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