Information labeling method and device capable of automatically adapting to geometric surface

An adaptive and geometric technology, applied in image data processing, instruments, etc., can solve problems such as poor visual effects, achieve accurate expression, reduce visual differences, and improve visual visual experience

Active Publication Date: 2018-02-13
吉奥时空信息技术股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention mainly solves the technical problem of poor visual effect existing in labeling polygons in the prior art, and proposes an adaptive geometric surface information labeling method and device

Method used

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  • Information labeling method and device capable of automatically adapting to geometric surface
  • Information labeling method and device capable of automatically adapting to geometric surface
  • Information labeling method and device capable of automatically adapting to geometric surface

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Experimental program
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Embodiment

[0043] The method flow of this embodiment is as follows Figure 17 As shown, the specific process is:

[0044] Step 1: Create an index on the geometric surface data;

[0045] Step 2: traverse the value of 1 in the index, and eliminate the outermost index;

[0046] Step 3: Repeat step 2 until a final label position is obtained, which is the best position for label placement.

[0047] The labeling process of this implementation is as follows Figure 9 shown. Figure 9 What is to be marked in is a geometric surface. Unlike the traditional technology, this embodiment does not use parallel lines to do multiple cuts to find parallel lines, but directly uses a grid of a certain size to divide this geometric figure to obtain the second image data. Therefore, you only need to record the data in these squares, and use an array to record all the divided data.

[0048] Then, by eliminating the data of the outermost circle one by one, the data of the outer circle is obtained first, th...

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Abstract

The invention relates to an information labeling method and device, and belongs to the field of geographic information labeling, in particular to an information labeling method and device capable of automatically adapting to a geometric surface. The information labeling method comprises the following steps: a grid dividing step of dividing the minimal exterior rectangle of to-be-labeled geometricsurface into a plurality of grids; a grid labeling step of adopting different codes to separately label grids crossed with the geometric surface and grids not crossed with the geometric surface; a grid corroding step of scanning the grids and labeling a boundary grid of at least one un-crossed grid in the adjacent grids as an un-crossed grid until the quantity of the residual crossed grids meets athreshold value; and a position determining step of taking the residual crossed grids as final landmark positions. Therefore, the information labeling method has the advantages that: difference between computer vision and vision of people is reduced, so that expression of geometric information is more accurate and beautiful, and visual vision experience is improved, and therefore, the informationlabeling method is a labeling information placing method capable of adapting to the geometric surface.

Description

technical field [0001] The invention relates to an information labeling method and device, belonging to the field of geographical information labeling, in particular to an information labeling method and device for self-adaptive geometric surfaces. Background technique [0002] In the GIS industry, the basic geographic data in reality (such as land, water system, housing, administrative plane, etc.) are collectively referred to as spatial data. The popular understanding of spatial data is: geometric data + attribute information. Data visualization has always been a hot spot in computer vision research. In GIS industry data visualization, the display of geometric data is the basis of all GIS applications. The display of geometric data information annotation is the basic application of cartography and spatial data display. Geometric data is mathematically simple. It is divided into three types: point, line, and surface. This patent focuses on solving the problem of placing lab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T19/20
CPCG06T19/20
Inventor 池晶龙燕军付智能杨曦贺楷锴刘芬
Owner 吉奥时空信息技术股份有限公司
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