A Geometric Algebraic Coding and Representation Method for Remote Sensing Image Metadata

Abstract

The invention discloses a geometric algebra encoding and representation method of remote sensing image metadata. In the geometric algebra space, remote sensing image metadata information is layered into metadata items according to different data types, and the metadata items are further decomposed into data names and data structure, and encode strings and numbers respectively; encoded data names and data are represented as vectors of different dimensions, vectors of different dimensions are connected by geometric products, and metadata items of different metadata are connected by connectors; vectors of different dimensions are generated Multi-vector structure of linear combination between metadata information. The invention is beneficial to describe the hierarchical relationship of the information itself, can effectively support the association of metadata information of any different dimension vectors, and is conducive to expanding the information dimension space; using geometric algebra to effectively connect mixed-dimensional objects to multiple vector structures, is conducive to the realization of metadata Fusion expression of items.

Description

technical field [0001] The invention relates to a geographic data processing method, in particular to a geometric algebra encoding and representation method for remote sensing image metadata. Background technique [0002] Remote sensing image metadata is a description of the content, type, representation, spatial reference, management method, and other characteristics of remote sensing images, and is an important means to realize remote sensing data management and sharing. Remote sensing image metadata contains rich data information. At the same time, the continuous acquisition of a large amount of remote sensing data poses new challenges for data storage management and sharing applications. How to quickly and accurately discover, access, acquire and use In order to maximize the value of the required data and maximize its value, it is urgent to organize and manage it effectively. The current research is mainly focused on how to formulate the standard specification of remote...

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Problems solved by technology

[0004] Purpose of the invention: In order to solve the problem that remote sensing image metadata is difficult to efficiently organize and manage in the prior art, and to overcome the defects that the existing data coding structure cannot perform data hierarchical expression and fusion expression, the purpose of the present invention is to provide a remote sensing image element The geometric algebraic coding and representation method of data realizes the unified organization and fusion expression of the mixed-dimensional information structure in remote sensing image metadata

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