A geometric algebra encoding and representing method of remote sensing image metadata

Abstract

The invention discloses a remote sensing image metadata geometric algebraic coding and representation method, which comprises the following steps: layering remote sensing image metadata information into metadata items according to different data types in a geometric algebraic space, further decomposing the metadata items into data names and data structures, and respectively carrying out characterstring and digital coding; Wherein the coded data name and data are respectively expressed as vectors of different dimensions, the vectors of different dimensions are connected by using a geometric product, and different metadata items are connected by using connectors; and generating a multi-vector structure of linear combination between metadata information of different dimension vectors. According to the method, the hierarchical relationship of the information can be described, metadata information association of any different dimension vectors can be effectively supported, and the information dimension space can be expanded; and the geometric algebra pair multi-vector structure can be effectively connected with a mixed dimension object, so that the fusion expression of metadata items can be favorably realized.

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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