极地陆生植物3D形态数据库(3D MPP)

植物3D形态是植物的重要生理特征和存在形式。3D形态由于与植物的光合作用效率息息相关,因而对植物生长具有重要意义。将2014年在南极乔治王岛长城站附近采集的56份苔藓植物标本鉴定为4科6属6种及1变种。从每一种中选取一个代表性群落样品用REVscan 3D扫描仪进行高精度的激光扫描,共获取120 M 3D点云数据,987 429个点和1 700 380个面,重构出7个植物样本的表面3D模型。在此基础上,基于Java Web技术、开源数据库系统My SQL、第三方开源Web GL库Three.js、开源Web应用服务器Tomcat等构建了国内首个极地植物3D形态数据库(3dmpp.gznu.edu.cn),提供了3D渲染功能。通过本数据库用户可以方便地浏览和搜索已有的物种信息数据,并全方位地获取植物的3D表面信息。本数据库的建立为极地植物的3D形态信息提供了储存、展示与共享的平台,为不同植物间3D表面形态的比较研究提供了基础数据和工具,为保护极地植物,特别是濒危植物的全息信息资料提供了重要保障。

Database of 3 three-dimensional morphology of polar terrestrial plants(3D MPP)

Three-dimensional (3D) morphology is an important physiological characteristic of plants. In particular, because of its close link to the efficiency of photosynthesis, 3D morphology is an important tool for the investigation of plant growth. In 2014, 56 bryophyte specimens were collected near Great Wall Station on George King Island, Antarctica. The specimens were identified as four families, six genera, six species, and one variety. Representative samples were selected from each species and 3D morphology was determined using high precision laser scanning. The system harvested 120 million point cloud data points, as well as 987,429 points and 1,700,380 surfaces, to reconstruct the 3D morphological surfaces of seven plant species. In addition, Java Web technologies, MySQL, Three.js, and Tomcat, were used to build a domestic database (3D MPP, 3dmpp.gznu.edu.cn) of the 3D morphology of Antarctic plants, according to the WebGL standard with 3D rendering function. Using this database, researchers can browse and search for species information and can obtain access to the 3D morphological information. Furthermore, the database offers the option to download these 3D files in STL file format. The database offers a platform for the storage, display, and sharing of 3D morphological information of polar plants and provides basic data and tools for the comparative study of the 3D surface morphology of these plants. It also provides important protection for holographic information on polar plants.