搜索

x

面向需求的自适应瓦片立方体更新及验证

Updating and validation of requirement-oriented adaptive tile data cube

  • 摘要: 针对多源异构地球观测数据组织和管理所存在的问题,提出了一种基于北斗网格的面向需求的自适应瓦片立方体模型RATD,旨在实现多源异构地球观测数据的动态组织与高效管理。通过引入有限状态机FSM进行瓦片数据的动态更新建模,基于需求生成和更新瓦片数据。以福建省地表覆盖分类为案例,验证了模型的可行性。结果表明:更新后的RATD总体分类精度与Kappa系数均在0.93以上;此外,相较于传统方法,RATD在数据获取流程的效率以及所需时间方面展现出显著优势。研究结果为地球观测数据的高效管理和应用提供了新的思路和方法。

     

    Abstract: Aimed at the problems existing in the organization and management of multi-source heterogeneous Earth observation data, in the report, a requirement-oriented adaptive tile data cube (RATD) based on the Beidou grid was proposed, which aimed to achieve dynamic organization and efficient management of multi-source heterogeneous Earth observation data. The finite state machine (FSM) was introduced for the dynamic update modeling of tile data. Based on the requirements, the tile data was generated and updated. The surface cover classification of Fujian Province was used as a case, the feasibility of the model was verified. The results suggested that the overall classification accuracy and Kappa coefficient of the updated RATD were both above 0.93, in addition, the efficiency of data acquisition process and the required time of RATD was better than that of the traditional methods significantly. Our findings provide the new ideas and methods for the efficient management and application of earth observation(EO) data.

     

/

返回文章
返回