Seedling-lump integrated non-destructive monitoring for automatic transplanting with Intel RealSense depth camera  

作　　者：Tabinda Naz Syed Liu Jizhan Zhou Xin Zhao Shengyi Yuan Yan Sami Hassan Ahmed Mohamed Imran Ali Lakhiar 

机构地区：[1]Key Laboratory of Modern Agricultural Equipment and Technology,Ministry of Education,Jiangsu University,Jiangsu 212013,China

出　　处：《Artificial Intelligence in Agriculture》2019年第3期18-32,共15页农业人工智能（英文）

基　　金：Theworkwas supported by grants fromthe Jiangsu Agricultural Science and Technology Innovation Fund(CX(16)1044);the Natural Science Foundation of Colleges in Jiangsu Province(16KJA210002);the Project of Six Talent Peaks in Jiangsu Province(JXQC-008);a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD-2018-87).

摘　　要：Non-destructive plant growth parameters measurement is an important concern in automatic-seedling transplanting.Recently,several image-basedmonitoring approaches have been proposed and potentially developed for several agricultural applications.The presented study proposed and developed a RealSense-based machine vision system for the close-shot seedling-lump integrated monitoring.The strategy was based on the close-shot depth information.Further,the point cloud clustering and suitable algorithms were applied to obtain the segmentation of 3D seedling models.In addition,the data processing pipeline was developed to assess the differentmorphological parameter of 4 different seedling varieties.The experiments were carried out with 4 different seedling varieties(pepper,tomato,cucumber,and lettuce)and trained under different light conditions(light and dark).Moreover,analysis results showed that therewas not significantly different(p<0.05)found towards light and dark environments due to close-shot near-infrared detection.However,the results revealed that the stem diameter relationship between RealSense and the manual method was found for R^2=0.68 cucumber,R^2=0.54 tomato,R^2=0.35 pepper,and R^2=0.58 lettuce seedlings.Whereas,the seedling height relationship between RealSense and the manual methodwas found higher than R^2=0.99,0.99,0.99,and 0.99 for pepper,tomato,cucumber,and lettuce,respectively.Based on the experiment results,it was concluded that the RGB-D integrated monitoring system with the purposed method could be practiced for nursery seedlings most promisingly without high labour requirements in terms of ease of use.The system revealed a good sturdiness and relevance for plant growth monitoring.Additionally,it has the perspective for future practical value to real-time vision servo operations for transplanting robots.

关 键 词：Machine vision RealSense SR300 Segmentation Seedlings transplanting 

分 类 号：S64[农业科学—蔬菜学]