Description: 随着遥感、GIS领域对高分辨率、大幅面卫星图像的需求越来越强烈，高分辨率、大幅面可见光卫星正在迅速增加，同时，其单幅卫星图像的幅面也在急剧扩大。一般的卫星遥感图像数据量往往大到以ＧＢ为单位。
我们考虑采用分块、索引及搭建图像金字塔的方式实现大幅面卫星影像的显示与漫游。打开影像不受机器及数据量大小的限制。。。这里把源程序提供给大家。
-With remote sensing, GIS in the field of the high-resolution, large format satellite images of the demand for more and more intense, high-resolution, large format visible satellite is rapidly increasing, while its format from single satellite images are also expanding rapidly. Average amount of satellite remote sensing image data are often large in GB as a unit. We consider the block, the index and build image pyramid the way to achieve large format satellite images of the display and roaming. Open the image from the machine and the amount of data size. . . Here the source code available to everyone. Platform: |
Size: 3773440 |
Author:小田 |
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Description: 随着遥感影像数据量变得越来越大, 为了提高图像实时缩放和显示的速度, 快速地获取不同分辨率下的图像信息, 往往会对原始图像建立金字塔结构, 根据不同的显示要求, 调用不同金字塔等级中的数据, 来达到快速显示、漫游的目的。-With the amount of remote sensing data become more and more, in order to improve image scaling and display real-time speed, quick access to different resolutions of the image information, may often create the original image pyramid structure, depending on display requirements, call the different pyramid level data, to achieve rapid display, roaming purposes. Platform: |
Size: 1024 |
Author:huwanyuan |
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Description: 遥感影像剖分金字塔研究
分析了全球剖分格网与影像金字塔的优点与不足,结合两者的优势提出了剖分影像金字塔模型及建塔策略,利用全球剖分格网面片编码的唯一性和Hilbert曲线空间连续性对影像块进行索引与组织.针对基于影像块组织的特点,提出了剖分影像金字塔局部更新的方案.实验结果表明,剖分影像金字塔不仅具有传统影像金字塔在快速浏览上的优势,并且由于其编码和索引的优势,使得在局部影像提取和更新方面效率更高,有一定的使用价值.
-Remote Sensing split Pyramid Research analyzes the advantages and disadvantages of global subdivision grid and image pyramid, combining the advantages of both proposed split image pyramid model and strategy to build towers, use of global subdivision grid patch coding Uniqueness Hilbert curve and spatial continuity of the image block indexing and organization. based on the characteristics of the image block for the organization, proposed a partial update of the split image pyramid scheme. the results show that not only has the traditional split image pyramid image on pyramids in Quick View advantages, and because of its advantages coding and indexing, so higher extraction efficiency and updating local image, there is a certain value. Platform: |
Size: 470016 |
Author:fangsm1 |
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