数字植物研究进展：植物形态结构三维数字化

doi:10.3864/j.issn.0578-1752.2015.17.009

Abstract

Abstract: Digital plant focuses on research of the theories, technologies, and methods of efficient perception and cognition to the multi-dimensional information in plant life, agricultural production, and ecological system. The critical, basic, common theories, and technical problems in digital agriculture, including the 3D digitization of plants and its environment, high-throughput information acquisition, context awareness, information fusion, structural-functional simulation, digital design, and accurate management decision, can be studied in depth through the interdisciplinary cooperation. The study of 3D digitization to plant structure is one of the most important topics in the area of digital plant. Recently many in-depth studies on the 3D digitization of plant structure had been reported by considering the real requirements from parameter measurement of plant structure, analysis of morphological structure, 3D reconstruction, structural-functional modeling and realistic rendering of 3D plant models. These studies were done not only from tissue, organ, plant to colony scale, but also from aboveground to underground. In organ scale, with the advance of MRI, CT, microscopic imaging techniques and the corresponding products, using these advanced instruments to measure internal structure data of plant has become possible and popular in more and more researchers. And this also provides an effective method for measuring and analyzing the microcosmic morphological structure of plant. To the 3D digitization of root system, the observation and measurement of plant root are very difficult for root always grows deep in soil. Although XCT, MRI and X-ray imaging techniques have been more and more widely used in recent years for detecting the morphological structure of root, these techniques can often only be used to measure a small part of a whole root. So the accurate, nondestructive and fast measurement of root structure is still a challenge. At colony scale, real measured data-based 3D reconstruction has become a main method for the three-dimensional reconstruction of plant colony. Currently, some researchers are trying to extract the morphological parameters of plant colony directly from 3D point cloud then realize the 3D reconstruction. While at the research of realistic rendering of 3D plant model, how to accurately measure the optical properties of various plant organs and to establish a corresponding mathematical model is the focus in this area. However, although some solutions had been reported, these proposed methods are still not satisfactory when considering the convenience and general applicability, and more in-depth studies are expected to be done. Lastly, the further study of digital plant was also discussed based on the analysis of the related technical progress.

Key words: digital plant, modeling of plant morphology and structure, 3D reconstruction, visualization

ZHAO Chun-jiang, LU Sheng-lian, GUO Xin-yu, DU Jian-jun, WEN Wei-liang, MIAO Teng. Advances in Research of Digital Plant: 3D Digitization of Plant Morphological Structure[J].Scientia Agricultura Sinica, 2015, 48(17): 3415-3428.

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