摘要
针对海量遥感影像时间分辨率不断提高,多时相遥感影像存储空间耗费大、查询效率低的问题,提出一种针对多时相遥感影像数据存储管理的模型和方法。首先确定多时相遥感影像的基态影像,然后运用变化检测技术计算出不同时相间影像的差异,将差异变化值大于设定阈值的遥感影像区域进行存储,并用于对基态影像的修正。实验证明,运用该方法管理多时相遥感影像时,可有效节省存储空间。
With the temporal resolution of massive remote sensing image continuously increasing, the storage space of multi-temporal remote sensing images becomes larger and the querying efficiency becomes lower. Propose a model and a method for multi-temporal remote sensing images data management. At first The model will specify the ground state image of the multi-temporal remote sensing image, then use the change-detection technology to calculate the difference between the multi-temporal remote sensing images, storage the image which change value is bigger than the appointed value, and use it modify the ground state image. Experiments show that using the method could make higher storage efficiency for the management of multi-temporal remote sensing image.
出处
《兵工自动化》
2010年第3期63-67,共5页
Ordnance Industry Automation
基金
国家自然科学基金项目(40601080)
国家863项目(2008AA12A211)
关键词
多时相
遥感影像
基于事件
基态修正模型
存储
Multi-temporal
Remote sensing image
Event-based
Ground state amendments
Storage
