Suspension type high-throughput greenhouse plant phenotypic measuring system based on multi-perspective RGB-D fusion technology

Abstract

The invention aims to provide a suspension type high-throughput greenhouse plant phenotypic measuring system. The measuring system is arranged on a suspension type support, and the suspension type support can realize tri-axis movement to satisfy the whole-growth-cycle plant phenotypic in-situ measurement requirement. The measuring system is mainly formed by three TOF cameras for respectively acquiring RGB-D images in various perspectives, and a depth map is converted to a three-dimensional point cloud map through internal parameters of the TOF cameras. Through checkerboard calibration, a rotation matrix and a translation matrix of three perspectives are obtained, a reference perspective is selected, coordinate transformation of three-dimensional point clouds of other two perspectives is performed, a unified coordinate system of the three-dimensional point clouds of three perspectives is realized, an iterative closest point (ICP) method is performed for accurate registration, and accurate reconstruction of a greenhouse plant three-dimensional point cloud model is realized. According to the high-throughput greenhouse plant phenotypic in-situ measuring system, the precision is high, the speed is fast, and the adaptability is high.

Description

technical field [0001] The invention relates to the field of high-throughput greenhouse plant phenotype measurement, in particular to a suspended high-throughput greenhouse plant phenotype measurement system based on multi-view RGB-D fusion technology. Background technique [0002] Global food security is one of the major challenges faced by human beings. To solve the problem of food security, in addition to maintaining the ecological environment and ensuring the cultivated area, the most effective measure is to develop and utilize excellent crop varieties and advanced cultivation techniques, and related crops Researches on variety resource identification, genetic breeding, functional genomics, and plant biology basically involve the identification and analysis of a large number of crop phenotypes. With the continuous development of biotechnology and genomics research in recent years, especially the rapid development of sequencing technology, the whole genome sequencing of a...

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Problems solved by technology

With the continuous development of biotechnology and genomics research in recent years, especially the rapid development of sequencing technology, the whole genome sequencing of a variety of crops has been completed, but the traditional phenotypic research methods have low efficiency, low dimensionality, low resolution, Shortcomings such as low throughput and strong subjectivity, these defects make the research data related to phenomics unable to satisfy the analysis of the relationship between genotype, environment and phenotype, and also limit the comprehensive annotation of all gene functions of crops High-throughput crop phenotype measurement technology is the key core technology to decipher the code of crop gene-environment interaction, and has become a new bottleneck restricting the development of crop functional genomics and crop molecular breeding research.

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