KR100725729B1 - System for construction of geometrical information by satellite and aerospace image and solid output of stereo geometric information image to glass by 3 dimensional image output - Google Patents

Abstract

A system for constructing geographic information using satellite and aerospace images, and a system for outputting stereo geographic information images to a vehicle glass are provided to effectively represent various information by using 3-dimensional images. A geographic information collecting unit(10) collects geographic information from satellite and aerospace images, and constructs geographic information by performing error correction and theme analysis on images. A 3-dimensional contour output unit(40) outputs a contour of 3-dimensional coordinates to a display unit, which is installed on a vehicle glass, according to a value map constructed in a value map constructing unit(30). A 3-dimensional image output unit(60) forms 3-dimensional images by stereo images collected in a stereo images collecting unit(50) and outputs the 3-dimensional images on the contour. A 3-dimensional display unit(70) displays the 3-dimensional contour from the 3-dimensional contour output unit and the 3-dimensional images from the 3-dimensional images output unit.

Description

3D system for construction of geometrical information by satellite and aerospace image and solid output of stereo geometric information image to glass by 3 dimensional image output}

FIG. 1 is a block diagram of a stereoscopic output system of a stereo geographic information image using a three-dimensional image output and geographic information construction by satellite and aerial images according to an embodiment of the present invention.

2 is a flowchart illustrating a stereoscopic output method of stereo geographic information image to glass using geographic information construction and three-dimensional image output using satellite and aerial images according to an embodiment of the present invention.

3 is a flowchart illustrating a method of constructing and browsing geographic information using conventional image information.

Explanation of symbols on the main parts of the drawings

10: Geographic Information Collection Department

20: 3D coordinate calculation unit

30: digital map construction unit

40: 3D contour output unit

50: stereo image collection unit

60: 3D image output unit

70: three-dimensional display

The present invention relates to a Geographic Information System (GIS), and in particular, to construct geographic information using satellite images and aerial images, output the constructed geographic information to a three-dimensional display device of a vehicle as a three-dimensional outline, Collects stereo images and outputs them as 3D images on 3D display device of vehicle to construct geographic information and satellite 3D image output by satellite image and aerial image which are suitable for efficient geographic information recognition and various information expression. The present invention relates to a stereoscopic output system of a vehicle using stereo geographic images.

In general, the Geographic Information System (GIS) refers to a system for interpreting attribute information on a map using a computer. This is also called a map information system. The information handled varies, including human factors such as population density and land use, and natural environmental factors such as weather conditions and geology. It aims to process attribute information, interpret it for specific purposes, and support planning. Geographic information systems are used for various purposes such as urban planning, land management, and corporate sales strategy planning.

Thus, conventionally, as a technique of using image information for a geographic information system, there is a 'geographic information construction and browsing system using image information and a method thereof' of Korean Patent Application No. 10-2002-55196.

3 is a flowchart illustrating a method of constructing and browsing geographic information using conventional image information.

As shown therein, using the geographic information building and browsing system using the image information, collecting the stereo image and the position information and the attitude information of the camera by a plurality of cameras mounted on the vehicle and storing them in the database unit (ST11). )Wow; Storing geographic information constructed by calculating three-dimensional coordinates of the geographic object represented in the stereo image from the stereo image and the positional information and attitude information of the camera and storing the geographic information as a digital map in a database unit (ST12); In step ST13, a search and browsing service is provided in both directions with respect to the stereo image and the digital map.

Referring to Figure 3 describes the operation of the prior art in detail as follows.

First, stereo images collected by a plurality of cameras mounted on a vehicle, for example, two cameras, position information and attitude information of the camera are collected and stored in a database (ST11).

After the stereo image and the position information and attitude information of the camera are collected, the three-dimensional coordinates of the geographic objects shown in the stereo image are calculated from the stereo image and the position information and the attitude information of the camera and stored in the database (ST12).

Subsequently, the image output unit of the geographic information construction / browsing server automatically generates an outline in the form of a point, line, or face according to the type of the specific geographic object converted into three-dimensional coordinates and displays the geographic object on the image in the form of an outline. do.

At the same time, the map output unit of the geographic information construction / browsing server outputs a map of the region where the stereo image is collected to the map output window, and displays the location of the geographic object converted into 3D coordinates by the coordinate converter.

In addition, the property unit of the geographic information building / browsing server receives the non-spatial property of the geographic object displayed on the map output unit from the user through the property window and stores it in the database along with the 3D coordinates of the geographic object.

In addition, a search and browsing service is provided in both directions for the stereo image and the digital map (ST13).

At this time, the search and browsing service from the digital map to the stereo image, when the geographic object displayed on the map output unit of the geographic information construction and browsing server is selected, the coordinate converter calculates the pixel coordinates of the image corresponding to the geographic object After retrieving the image containing the geographic object from the database, the contour of the geographic object is calculated, and the contour of the geographic object is displayed on the image output to the image output unit together with the retrieved image. It is provided to facilitate the browsing.

However, this conventional technology has a limitation in providing a browsing service using image information instead of geographical information constructed using satellite images and aerial images. In addition, there is a limitation in that the function of outputting the constructed geographic information to the 3D display device of the vehicle as a 3D outline or collecting a stereo image and outputting the 3D image to the 3D display device of the vehicle cannot be performed.

Accordingly, the present invention has been proposed to solve the above-mentioned general problems, and an object of the present invention is to construct geographic information using satellite images and aerial images, and to build the geographic information on a 3D display device of a vehicle. Geographic information construction by satellite image and aerial image that can be output as dimensional contour and collect stereo image and output as 3D image to 3D display device of vehicle to perform geographic information recognition and various information efficiently. The present invention provides a stereoscopic output system of glass into stereo geographic images using dimensional image output.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention as described above, according to the technical concept of the stereoscopic output system of the stereoscopic geographic information image using the three-dimensional image output and geographic information construction by satellite image and aerial image with reference to the drawings Is as follows.

FIG. 1 is a block diagram of a stereoscopic output system of a stereo geographic information image using a three-dimensional image output and geographic information construction by satellite and aerial images according to an embodiment of the present invention.

As shown in this figure, geographic information is collected from satellite and aerial images, preprocessing to remove electromagnetic noise and correction of errors, emphasis processing to enhance image quality, and thematic analysis processing to perform thematic analysis of images, and the ground surface. A geographic information collecting unit 10 for constructing geographic information by performing post-processing to extract information of the geographic information; A three-dimensional coordinate calculation unit 20 for calculating three-dimensional coordinates of a geographic object using geographic information constructed by the geographic information collecting unit 10; A digital map construction unit 30 for constructing a digital map based on the coordinates calculated by the three-dimensional coordinate calculation unit 20; Three-dimensional contour output unit for forming the contour of the three-dimensional coordinates by the digital map constructed by the digital map construction unit 30 to output the contour of the three-dimensional coordinates to the three-dimensional display unit 70 installed on the windshield of the vehicle 40; A stereo image collecting unit 50 for collecting a stereo image; Three-dimensional image forming a three-dimensional image by the stereo image collected by the stereo image collecting unit 50 to output a stereo image as a three-dimensional image on the contour of the three-dimensional coordinates output to the three-dimensional display unit 70 An image output unit 60; A three-dimensional display unit 60 installed on the front glass of the vehicle and configured to display a three-dimensional contour by the three-dimensional contour output unit 40 and a three-dimensional image by the three-dimensional image output unit 60; Characterized in that configured to include.

2 is a flowchart illustrating a stereoscopic output method of stereo geographic information image to glass using geographic information construction and three-dimensional image output using satellite and aerial images according to an embodiment of the present invention.

As shown in this figure, geographic information is collected from satellite and aerial images, preprocessing to remove electromagnetic noise and correction of errors, emphasis processing to enhance image quality, and thematic analysis processing to perform thematic analysis of images, and the surface of the earth. A first step (ST1) of constructing geographic information by performing post-processing for extracting information of the information; A second step ST2 of collecting stereo images; A third step (ST3) of calculating three-dimensional coordinates of the geographic object using the geographic information constructed in the first step; A fourth step ST4 of building a numerical map based on the coordinates calculated after the third step; A fifth step ST5 of forming a contour of the three-dimensional coordinates by using the numerical map constructed in the fourth step and outputting the contour of the three-dimensional coordinates to the three-dimensional display unit 70 installed on the windshield of the vehicle; Forming a 3D image by the stereo image collected in the second step after the fifth step, and outputting the stereo image as a 3D image on the contour of the 3D coordinates output to the 3D display unit 70; Step 6 (ST6); characterized in that performed.

Exemplary embodiments of the system and method for stereoscopic stereoscopic image output to the glass using the 3D image output and the geographic information construction by the satellite image and the aerial image configured as described above will be described in detail with reference to the accompanying drawings. Is as follows. In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted if it is determined that the detailed description of the present invention may unnecessarily obscure the subject matter of the present invention. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to intention or precedent of a user or an operator, and thus, the meaning of each term should be interpreted based on the contents throughout the present specification. will be.

First, the present invention constructs geographic information using satellite image and aerial image, outputs the constructed geographic information to the vehicle's three-dimensional display device in three-dimensional outline, collects stereo images, and three-dimensional to the vehicle's three-dimensional display device. It is intended to efficiently perform geographic information recognition and expression of various information by outputting it as an image.

To this end, the geographic information collection unit 10 collects and constructs geographic information from satellite images and aerial images.

In this case, the satellite image is a digital wave form that detects electromagnetic energy reflected or radiated by an object of the earth by a detector mounted on a satellite, and records it in a digital form. Get At this time, the geographic information collecting unit 10 analyzes satellite images obtained not only in the visible light region but also in the infrared and ultraviolet light regions, and divides the information into several wavelength bands and includes various analysis using the spectral characteristics of the geographic information. Can be done.

In order to make the satellite image data that can be used in the GIS, the geographic information collecting unit 10 undergoes a complicated process.

First of all, images received from satellites include scattering and reflection in the atmosphere between the satellite and the surface, systematic noises that occur regularly, and accidental noises that occur due to the characteristics of space. Therefore, the collected satellite image data requires preprocessing to remove geometrical or radiation errors caused by satellite and earth motion, sensor shaking, and atmospheric conditions. Therefore, in the pretreatment process, radial correction and geometric correction are performed. Radiation correction corrects for the influence of minute differences in sensitivity between detectors and for the effect of solar altitude when mosaicing data observed at different times. In addition, the geometric correction is to correct the effects of the earth's rotational influence and the earth curvature at the time of data acquisition so as to be similar to the projection of a general map. In order to perform the geometric correction, the ground control points clearly identified in the image are selected, the image coordinates and the ground coordinates for the ground control points are obtained, and the conversion equation between the two coordinates is set and corrected.

In addition, the geographic information collecting unit 10 performs an emphasis process for enhancing the image quality of the image for better information acquisition through the satellite image. This enhances the readability of the image in order to enhance the readability of the image, thereby improving the visual readability of the image, and facilitates subsequent analysis and classification. This is accomplished by techniques such as contrast extension, contrast stretching, inter-pixel filtering, and inter-image computation.

In addition, the geographic information collecting unit 10 performs an analysis step for each image. It analyzes the highlighted data on selected topics. For example, landscape images include various land cover elements (different types of vegetation and land uses). In thematic analysis, the different types of cover are divided into different thematic maps and grouped together for statistical analysis. This allows us to find common themes from the raster cell.

In addition, the geographic information collecting unit 10 performs a post-processing process for extracting information on the ground surface. This post-treatment categorizes subjects into distinct categories, for example, vegetation theme maps from total land cover (forests, farmland, barren land), community levels (leaves, conifers), and area of individual species. Can be classified as

In addition, the geographic information collection unit 10 appropriately interprets the characteristics of various objects obtained from the aerial image according to the purpose, and based on the analysis to obtain information about the shape, geology, vegetation, soil, etc. of the object.

So the geographic information collection unit 10 performs quantitative analysis and qualitative analysis for reading the aerial image. That is, quantitative aerial image reading that determines position, size, and shape, and qualitative aerial image reading used for information survey of resources and environment are performed (ST1).

When the geographic information collection unit 10 constructs geographic information from the satellite image and the aerial image, the 3D coordinate calculation unit 20 uses the geographic information constructed by the geographic information collecting unit 10 for the geographic object 3. The dimension coordinates are calculated (ST3).

The digital map construction unit 30 constructs the digital map based on the coordinates calculated by the three-dimensional coordinate calculation unit 20 (ST4).

Then, the three-dimensional contour output unit 40 forms the contour of the three-dimensional coordinates by the digital map constructed by the digital map construction unit 30 to display the three-dimensional coordinates on the three-dimensional display unit 70 installed on the windshield of the vehicle. The outline is output (ST5).

Accordingly, the driver of the vehicle can see the geographic information formed by the three-dimensional contour output on the front glass.

Meanwhile, the stereo image collecting unit 50 collects stereo images.

Here, stereo images are more realistic images that provide depth and spatial shape information differently from two-dimensional plane information. This image is a concept of spatial recognition that is synthesized in the process of recognizing the environment with both eyes (left and right eyes) of the human eye (left and right eyes) and arranging them in the brain. In reality, you will be able to provide a sense of presence, realism and virtual reality.

Thus, the stereo image collector 50 collects and processes stereo images to be output and transmits them to the 3D image output unit 60 (ST5).

Then, the 3D image output unit 60 forms a 3D image by the stereo image collected by the stereo image collecting unit 50 and displays the stereo image on the contour of the 3D coordinates output to the 3D display unit 70. The image is output as a 3D image (ST6).

Accordingly, the three-dimensional display unit 60 installed on the windshield of the vehicle allows the three-dimensional contour by the three-dimensional contour output unit 40 and the three-dimensional image by the three-dimensional image output unit 60 to be displayed. Through this, the driver of the vehicle can view the geographic information output on the windshield of the vehicle in the form of a contour, and can also view stereo image information including various information.

As described above, the present invention constructs geographic information using satellite images and aerial images, outputs the constructed geographic information to the vehicle's three-dimensional display device as a three-dimensional outline, collects stereo images, and three-dimensional to the three-dimensional display device of the vehicle. It outputs the image to efficiently recognize the geographic information and express various information.

As described above, the stereoscopic output system of the stereo geographic information image using the satellite image and the aerial image construction and the three-dimensional image output according to the present invention constructs the geographic information using the satellite image and the aerial image. In addition, the constructed geographic information is output to the 3D display device of the vehicle as a 3D outline, and stereo images are collected and output to the 3D display device of the vehicle as a 3D image to efficiently recognize the geographic information and express various information. It will work.

Although the above has been described as being limited to the preferred embodiment of the present invention, the present invention is not limited thereto and various changes, modifications, and equivalents may be used. Therefore, the present invention can be applied by appropriately modifying the above embodiments, it will be obvious that such application also belongs to the scope of the present invention based on the technical idea described in the claims below.

Claims (2)

A three-dimensional coordinate calculation unit 20 for calculating a three-dimensional coordinate of a geographic object using the geographic information collecting unit 10, the geographic information constructed by the geographic information collecting unit 10, and the three-dimensional coordinate calculating unit ( A three-dimensional contour output for forming a contour of three-dimensional coordinates by the digital map construction unit 30 for constructing the digital map based on the coordinates calculated in 20) and the digital map constructed in the digital map construction unit 30. Stereo geography using a three-dimensional image output comprising a unit 40, a stereo image collection unit 50 for collecting stereo images, a three-dimensional image output unit 60, and a three-dimensional display 60 In the stereoscopic output system of the information image, The geographic information collection unit 10, After collecting geographic information from satellite and aerial images, preprocessing to remove electromagnetic noise and correcting errors, emphasizing to enhance image quality, subjective analysis to perform thematic analysis of images, and extracting surface information. Perform processing to construct geographic information; The three-dimensional contour output unit 40, When the contour of the three-dimensional coordinates is formed by the numerical map constructed by the digital map construction unit 30 to output the contour of the three-dimensional coordinates to the three-dimensional display unit 70 installed on the windshield of the vehicle; The three-dimensional image output unit 60, Forming a 3D image by the stereo image collected by the stereo image collecting unit 50 to output a stereo image as a 3D image on the contour of the 3D coordinates output to the 3D display unit 70; The three-dimensional display unit 60, The satellite is installed on the windshield of the vehicle, and further comprising a three-dimensional contour by the three-dimensional contour output unit 40 and the three-dimensional image by the three-dimensional image output unit 60 to display the satellite. A stereoscopic output system of a vehicle's glass onto a vehicle's glass using a 3D image output and geographic information construction based on video and aerial images. delete

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