KR20080106119A

KR20080106119A - Transforming method of aerial photograph into three dimensional map

Info

Publication number: KR20080106119A
Application number: KR1020080051134A
Authority: KR
Inventors: 김칠곤
Original assignee: 김칠곤
Priority date: 2007-05-31
Filing date: 2008-05-30
Publication date: 2008-12-04

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mapping a square photo, and to a photo map generated by correcting a square distortion phenomenon of a photo including a square taken by air, and a method of utilizing the photo map.

Description

Transforming method of aerial photograph into three dimensional map}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mapping a quadrangular photograph, and to a method of utilizing a photographic map and generating a three-dimensional photographic map by correcting a rectangular distortion phenomenon of a photograph including an aerial photograph taken by air.

The technology applied to the present invention corresponds to a composite editing technology and an IP (Information Provide) technology area of a square picture.

The subject of the square photo appears smaller as far away and closer as it is larger due to the rectangular distortion caused by perspective.

In order to match the square-distorted photograph with the planar map that maintains equidistant and equidistant distances (not affected by the near and near distance), it is not solved by simple zooming and zooming technique. And it is required to develop a technology that can correct the distortion of the tapered (점), and to utilize the corrected square photo topographic map should be applied to the IP technology that can be installed on the web or mobile terminal via the Internet to support.

Conventional geographic information provision methods can be divided into map method, satellite photograph method, aerial photograph method, pictorial map method and field survey method, but the physical method can be seen in the map method. There is a limitation that the intellectual information cannot be known by the method of satellite photography and the aerial photograph.It is difficult to obtain detailed topographical information and intellectual information by the method of picture map. There is a problem with temporal and spatial limitations.

In order to solve these problems, some of the maps and pictures are printed on a book or mounted on the web to provide the information. However, this method does not overcome the rectangular distortion of the picture, and simply enlarges or reduces the picture to the map standard. The size is similar and not matched), and only the perspective of living terrain photographs, which cannot display grids of equidistant and equidistant intervals, is limited in obtaining accurate information of the actual terrain.

In addition, in the distortion correction of the square picture, a plurality of images photographed from various angles may be used, but this causes a problem of low efficiency due to an increase in shooting and correction costs.

The present invention is to remove the rectangular distortion phenomenon due to the perspective of the quadrangular photo and correct it with a photographic map such as a map (intellectual map, geographic map, development plan, etc.) to maintain equidistant and equidistant intervals, and at the same time directly The purpose is to prepare or use as various contents.

The present invention comprises the steps of obtaining a distortion value through the derivative with respect to the rectangular distortion phenomenon appearing when perspective on a square photograph, by adding or subtracting the distortion value by the integral through an integral to remove equilibrium and to remove the square; Enlarging the corrected picture with a picture of an adjacent region; And generating a standardized photographic map by giving the synthesized photograph a ordinate value and an abscissa value of a map.

According to another aspect of the present invention, there is provided a photographic map content generated by the mapping method and stored in a storage medium to be reproduced by a computer.

According to another feature of the present invention, there is provided a photographic map generated by the mapping method that is output or printed on the ground.

According to another feature of the invention, by using the photo map content on the computer to provide the function of location search, place name search, distance search and area search, and the picture is configured to enlarge, reduce, move and position the specific area It provides a method of using map contents.

According to the present invention, the subjects of all natural phenomena in the visible range of the human being can be produced in various ways by using a photographic map in the form of a flat map, and the mapping of the square photograph can be performed with only one photograph for one region. In addition, since the correction method is easily carried out using the derivative and the integral, there is an advantage in that it is easy to implement and satisfies both economic and correction effects.

Therefore, by using the photo map according to the present invention can check and measure the relevant information therein without having to go to the site of the relevant area, can be the basis of the ubiquitous industry.

The present invention relates to a distortion correction method for a square photo and a method of utilizing a photo map generated by the distortion correction. The distortion correction method for a square photo may be implemented by applying an existing Photoshop solution or using Visual C ++ / ActiveX technology. It is based on the prior art such as MS-SQL Server, FTP / HTTP solution, and the like. The generated photo map is mounted on the Internet web or mobile terminal or printed on the ground.

The present invention focuses on the fact that due to the straightness of light, the distortion of the square photograph photographed from the ground occurs at an equal difference, and to correct the distortion by adding or subtracting the distortion value obtained through the derivative in one direction to an integral. do.

This eliminates the need to take additional photographs from various angles to correct distortion, and makes it easy to implement them by using universal functions such as derivatives and integrals. This is a very useful invention that can achieve the maximum correction effect at the minimum cost. have

First, the mapping method of a square photograph is demonstrated with reference to drawings. The types of maps may vary, such as topographic maps, cadastral maps, development plans, etc., hereinafter, collectively referred to as maps or general maps other than photographic maps obtained by photographing according to the present invention, these maps may be classified only by characteristics. Be sure to mention the map name.

1 is an example of a square photograph taken from the ground, the square distortion phenomenon caused by the perspective is a phenomenon of the increase and decrease with a slope that can not be corrected by a simple overall enlargement and reduction. It is shown in.

Therefore, in order to correct the distortion of the quadrangles, the distortion is generated in equal order, and the distortion on the photograph that is increased or decreased in one direction that requires distortion correction among vertical or horizontal using a derivative function is used. If the value is found and integrated again to increase or decrease the area, a corrected picture that maintains equidistant and equidistant intervals as in the planar maps of FIGS. 3 and 4 can be obtained.

This process can be easily implemented by hand using a conventional computer solution or by applying a Photoshop solution.

When the photos of several adjacent regions which have undergone the correction process by differentiation and integration as described above are synthesized left, right, up and down continuously, the frame of the photo map is completed as shown in FIG. 5.

In order to perform a function as a map, the photo generated as shown in FIG. 5 must match the coordinate unit of the map. As shown in FIG. 6, the abscissa and the ordinate coordinates are assigned and normalized.

That is, by storing the actual general map using the same coordinate system as the WGS coordinate system and by applying the same coordinate system to the corrected picture, the standardized and stored, the photo map according to the present invention can be easily and variously based on the general map. I can take advantage of it.

7 to 8 show maps (topographical and cadastral maps) normalized according to the WGS coordinate system, and FIG. 9 is an example of a development plan obtained by utilizing the present invention.

As such, the photographic map according to the present invention may be stored in the same coordinate system as the general map, so that the photographic map may be simultaneously searched with a single search value or freely matched with each other.

According to the present invention, the quadrangular picture (picture map) mapped according to the present invention can be utilized for various services as content that can be stored in a computer, and can be provided as a map service on a web or mobile terminal through the Internet. The embodiment in the case where it is provided in parallel with the general map.

In addition, as shown in Figure 11, it can also be used as a map printed on the ground (book or document) bar, as shown in the drawing is to enable the simultaneous view (double view) by placing the map in parallel up and down or left and right Both scales and coordinates coincide so that the user can easily understand.

12 and 13 illustrate a case in which the terminal utilizes the contents used in the terminal, thereby reducing the cost of the survey by providing a sense of reality when surveying the distance or the terrain.

FIG. 14 is a topographic map, a cadastral map, a photographic map, and a development plan map according to the present invention are divided into four sections of up, down, left, and right on a web or mobile terminal through the Internet to directly related information. Embodiments that allow for comparison (multiview) or surveying of intellectual and terrain features.

FIG. 15 utilizes the embodiment of FIG. 14 by printing or printing on paper (book or document).

FIG. 16 shows an example of a result of searching for a location on a map, and FIG. 17 shows a case of searching for a location on a photo map, and it can be seen that the search using the photo map of the present invention is realistic and advantageous for the location.

FIG. 18 is a case where values of ordinate and abscissa are assigned based on the WGS coordinate system, and the location of the corresponding location can be easily searched by matching the general map and the photograph map.

19 is a result of the enlarged and reduced in the general map, Figure 20 is a result of the enlarged and reduced the specific position on the photo map according to the present invention, it can be seen that the photo map is very advantageous in the realism, simultaneous between the general map and the photo map Search is possible.

In particular, when utilizing the photographic map according to the present invention, it is possible to survey or grasp detailed information such as the area, distance, location, etc., which was not possible in general maps, and when mounted on a web or mobile terminal through the Internet, It provides search, place name search, distance search, and area search, and can be configured to enlarge, reduce, move, and locate a specific area.

1 is a rectangular photograph showing a rectangular distortion phenomenon due to perspective

2 is a model of distortion phenomenon caused by perspective optical illusion

3 is a rectangular photograph correcting the square distortion phenomenon due to perspective

4 is a diagram of a subject model when the rectangular distortion phenomenon is solved

FIG. 5 is a photo map of synthesized editing (mosaic) of several corrected square pictures. FIG.

FIG. 6 is a photographic map showing a grid of equidistant and equidistant intervals as a reference of the WGS coordinate system on a rectangular photographic topographic map. FIG.

7 is a cadastral view showing the area and the number in the basis of the WGS coordinate system;

8 is a geographical diagram showing the names and locations of regions, roads, buildings, etc., based on the WGS coordinate system;

9 is a regional development plan diagram that classifies the purpose and use of land and terrain on the basis of WGS coordinate system;

10 is a simultaneous (double) view of the cadastral map and the photo map mounted on the Internet (Web) or mobile terminal

11 is a simultaneous (double) view of cadastral and photo maps printed or printed on the ground (booklet, document, etc.)

12 is a result of searching the distance on the photo map and cadastral map of the web

13 is a result of searching the area on the photo map and cadastral map of the web

14 illustrates a multiple view embodiment in an Internet Web or mobile terminal.

15 illustrates a multiple view embodiment printed or printed on a page (book, document, etc.).

16 is a result of searching the location and address of cadastral on the cadastral map of the web

17 is a result of searching the position of the terrain and the number on the web photo map

18 is a diagram showing vertical and horizontal grids on a topographical map printed on the ground (booklet, document)

19 is a result of enlarged cadastral map on the web

20 is a result of enlarged photo map on the web

Claims

Obtaining a distortion value through a derivative with respect to a quadrangular distortion phenomenon caused by perspective illumination on a quadrangular photograph, and maintaining the equidistant and equidistant intervals by eliminating the distortion value by integration through correction and removing the quadrangle;

Enlarging the corrected picture with a picture of an adjacent region; And

And generating a standardized photographic map by giving the synthesized photograph a ordinate value and an abscissa value of a map. 2.

The method of claim 1, wherein the photographic map is in accordance with a WGS coordinate system.

A photographic map content generated by the method of claim 1 or 2 and stored in a storage medium for playback by a computer.

4. The photographic map contents of claim 3, wherein the photographic map contents are provided so as to enable viewing, simultaneous viewing, or parallel viewing respectively with the general map contents.

A photographic map generated by the method of claim 1 or 2, which is printed or printed on the ground.

The photographic map of claim 5, wherein the photographic map is output or printed to enable parallel viewing together with the general map.

Photo map contents configured to provide a function of number search, place name search, distance search and area search on a computer using the photo map contents of claim 3 or 4, and to enlarge, reduce, move, and locate a specific area. How to use.