Hierarchical coding and tracing method for image operation information

A technology for manipulating information and hierarchical coding, applied in the field of geographic information, which can solve the problems of inability to achieve fusion expression, large coding redundancy, and low search efficiency.

Pending Publication Date: 2020-10-27
南京泛在地理信息产业研究院有限公司 +1
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AI Technical Summary

Problems solved by technology

[0003] The existing traceability technology is still in the exploratory stage. The richness and heterogeneity of image data types make the operation information of image data different in quantity, structure and name, and it is impossible to achieve a unified fusion expression
Most of the traditional traceability technologies filter the original data record...

Method used

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  • Hierarchical coding and tracing method for image operation information
  • Hierarchical coding and tracing method for image operation information
  • Hierarchical coding and tracing method for image operation information

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Embodiment Construction

[0058] Such as figure 1 As shown, the present invention selects LANDSAT_8 remote sensing image as an example, and takes part of the image data operation information in ENVI 5.1 as an example. The image data operation information is shown in Table 1, which clearly and completely describes the acquisition, encoding, update and traceability of the operation information. Technical solutions.

[0059] Table 1 Image data operation information table

[0060]

[0061] The specific implementation steps are as follows:

[0062] Step 1: Acquisition of operation information. Obtain the image data operation information in ENVI 5.1, and construct the operation information space. Wherein, the image data operation information includes: operation category, operation name and operation parameter type in the image data operation. In this example, the operation class name space OP_Nspace has 9 operation class name subspaces, which are:

[0063] op_nsp 1 (Toolbox, 1, Null)

[0064] op_ns...

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Abstract

The invention discloses a hierarchical coding and tracing method for image operation information. The method comprises the following steps: (1) obtaining the operation information; (2) encoding operation information; (3) updating the operation information; and (4) tracing the operation information. According to the invention, the image data operation information with a hierarchical structure is obtained, and the unified expression and coding of the image data operation information are realized by utilizing the outer product operation of geometric algebra and a multi-vector structure; based onthe code updating of the operation information node and the operation link, the intersection operator and the dimension operator are used to complete the operation of operation information tracing andthe like, the memory occupation of the tracing information is reduced, and the tracing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of geographic information, in particular to a hierarchical coding and source tracing method of image operation information. Background technique [0002] Image data is not only widely used in daily life, but also plays an important role in applications such as terrain analysis, image extraction, and overlay analysis in the field of geographic information. With the acceleration of image data dissemination, the increasing complexity of operation processing, the enhancement of image data protection awareness, and the requirement of transparency of data operation information, the traceability technology of image metadata and operation process has gradually become the focus of attention. The root of traceability technology is to record the evolution of image data workflow, data change information, and parameters of the operation process. The traceability of operation processing is a reproduction of the existing ...

Claims

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Application Information

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IPC IPC(8): G06T9/00
CPCG06T9/00
Inventor 罗文周春烨王增杰袁林旺俞肇元胡靖瑶闾国年
Owner 南京泛在地理信息产业研究院有限公司
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