KR19980057608A - Preliminary figure extraction method - Google Patents
Preliminary figure extraction method Download PDFInfo
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- KR19980057608A KR19980057608A KR1019960076907A KR19960076907A KR19980057608A KR 19980057608 A KR19980057608 A KR 19980057608A KR 1019960076907 A KR1019960076907 A KR 1019960076907A KR 19960076907 A KR19960076907 A KR 19960076907A KR 19980057608 A KR19980057608 A KR 19980057608A
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Abstract
본 발명은 위성사진이나 항공사진을 이용하여 광범위한 지역에 형성된 선 수계형상을 추출하여 수치지도의 선 수계형상과 비교할 수 있는 방법으로서, 특히 위성사진이나 항공사진의 수계형상 특징점을 추출하고 그 추출된 특징점을 사용하여 형상을 분류한 후, 선 수계형상을 추출하여 수치지도의 형상과 매칭시킴으로써 수치지도의 선 수계형상과 비교할 수 있는 방법을 제공한다.The present invention is a method for extracting a linear aquatic shape formed in a wide area using a satellite image or an aerial photograph and comparing it with a linear aquatic shape of a digital map. After classifying the shape using the feature point, the method can extract the line water shape and match it with the shape of the digital map to provide a comparison with the line water shape of the digital map.
Description
본 발명은 위성사진이나 항공사진을 이용하여 광범위한 지역에 대한 전자 수치지도의 선수계형상 비교를 위한 선 수계형상 추출방법에 관한 것이다.The present invention relates to a method for extracting a hydrograph shape for comparing a bow system shape of an electronic digital map for a wide range using satellite photographs or aerial photographs.
현재 사용되고 있는 선수계형상의 추출방법은 관측자가 선수계형상을 추출하고자 하는 곳에 직접방문하여 선수계형상을 관측하여 추출한 후, 전자 수치지도상에 일일이 직접관측하여 추줄한 선 수계형상을 기입하여 비교하는 방식으로 선수계형상의 변화를 측정하였다.At present, the method of extracting the bowel shape is observed by the observer who directly visits the place where the bowel shape is to be extracted and observed and extracted. We measured the change in bow system shape in the same way.
상술한 종래의 기술은 특정 지역의 선 수계형상을 직접 관측한 후 추출하는 방법을 사용한다. 따라서 광범위한 지역에 걸쳐 형성되어 있는 선 수계형상을 추출하기에는 그 정확도 및 변화상태를 정확히 감지하기가 매우 어렵다는문제점이 있다.The above-described conventional technique uses a method of directly observing and extracting a water feature of a specific region. Therefore, there is a problem that it is very difficult to accurately detect the accuracy and the change state to extract the hydrograph shape formed over a wide area.
상술한 문제점을 해결하기 위하여 본 발명은 위성사진이나 항공사진을 이용하여 선 수계형상을 추출하고 전자 수치지도상의 선수계형상과 매칭시켜 비교함으로써 정확한 형상 및 단시간 내에의 선 수계형상 변화를 추출하는 것을 목적으로 한다.In order to solve the above-mentioned problems, the present invention extracts the linear shape using a satellite image or aerial photograph, and compares it with the bow shape on the digital digital map to compare the exact shape and the change of the linear shape in a short time. The purpose.
도1은 본 발명에 따른 전자 수치지도의 선 수계형상 비교를 위한 선 수계형상 추출방법을 단계별로 나타낸 블럭도.1 is a block diagram illustrating a step-by-step method for extracting a line water shape for comparing a line water shape of an electronic digital map according to the present invention;
도면의주요부분에대한부호의설명Explanation of symbols on the main parts of the drawing
100 : 사진 촬영부110 : 전처리부100: photographing unit 110: preprocessing unit
120 : 특징점 추출부130 : 분류부120: feature point extraction unit 130: classification unit
140 : 선수계형상 추출부150 : 형상 매칭부140: bow system shape extraction unit 150: shape matching unit
본 발명은 기존의 선 수계형상과 비교하기 위하여 위성사진이나 항공사진을 이용하여 선 수계형상을 추출하는 방법에 관한 것이다.The present invention relates to a method for extracting a waterborne shape using satellite photographs or aerial photographs in order to compare with the existing waterborne shape.
이하, 첨부된 도면을 참조하여 본 발명을 더욱 상세히 설명하기로 한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
도1은 본 발명에 따른 위성사진이나 항공사진을 이용하여 선수계형상을 추출하는 방법을 나타낸 것으로서, 먼저 인공위성이나 높은 고도로 운항되는 비행기를 이용하여 선수계형상을 추출하고자하는 부분의 사진을 촬영한다(100). 다음에 상기 촬영된 위성사진 또는 항공사진을 영상보정과 수계형상을 강조한 사진이나 필름을 인화한다(110). 다음에 인화된 사진이나 필름에 빛을 통과시켜 빛의 통과 또는 반사에 의해나타나는 스펙트럼치를 분석하여 사진 또는 필름으로부터 선 수계형상의 특징점을 추출한다(120). 다음에 상기 추출된 선 수계형상의 특징점을 사용하여 형상분류를 실시한 후(130), 상기 분류된 형상을 바탕으로 선 수계형상을 추출한다(140). 다음에 상기 추출된 사진상의 선 수계형상을 기존에 보유하고 있는 전자 수치 지도상의 선 수계형상과 매칭시켜 선수계의 변화를 파악한다(150).1 shows a method of extracting a bow system shape using satellite photographs or aerial photographs according to the present invention. First, a picture of a part to be extracted from the bow frame shape using a satellite or a plane operated at a high altitude is taken. 100. Next, the photographed satellite photograph or aerial photograph is printed on a photograph or film highlighting an image correction and aquatic shape (110). Next, the light is passed through the printed photograph or film to analyze the spectral values represented by the passage or reflection of the light to extract a feature of the line water shape from the photograph or the film (120). Next, shape classification is performed using the extracted feature points of the water line shape (130), and then the line water shape is extracted based on the classified shape (140). Next, the change of the bowing system is grasped by matching the extracted water line shape on the photographed picture with the existing water line shape on the electronic digital map existing (150).
상술한 바와 같이 항공사진으로부터 여러 가지 추출과 분류를 거쳐 선수계형상을 추출하고, 그 추출된 선수계형상을 기존의 선수계형상돠 비교함으로써 촬영한 지역에 대한 선수계형상의 변화를 정확히 파악할 수 있다.As described above, by extracting and classifying the athlete's body shape through various extraction and classification from the aerial photo, and comparing the extracted athlete's body shape with the existing athlete's body shape, it is possible to accurately grasp the change of the athlete's body shape for the photographed area. have.
본 발명의 선수계형상 추출방법은 위성사진 또는 항공사진을 이용하기 때문에 광범위한 지역에 걸쳐 형성되어 있는 선수계의 정확한 파악이 용이하고, 그 파악된 선 수계형상과 기존의 선 수계형상을 비교 분석함으로써 선 수계형상의 변화를 단시간 내에 정확히 파악할 수 있다.Since the bowel shape extraction method of the present invention uses satellite photographs or aerial photographs, it is easy to accurately grasp the bowel system formed over a wide range of regions, and by comparing and analyzing the identified waterline shape and the existing waterline shape Changes in the hydrograph can be accurately identified in a short time.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960076907A KR19980057608A (en) | 1996-12-30 | 1996-12-30 | Preliminary figure extraction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960076907A KR19980057608A (en) | 1996-12-30 | 1996-12-30 | Preliminary figure extraction method |
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| Publication Number | Publication Date |
|---|---|
| KR19980057608A true KR19980057608A (en) | 1998-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960076907A KR19980057608A (en) | 1996-12-30 | 1996-12-30 | Preliminary figure extraction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100782150B1 (en) * | 2007-07-25 | 2007-12-07 | 태양정보시스템(주) | Geodetic surveying method which can correct attribute data of digital map |
| KR101617078B1 (en) * | 2014-02-24 | 2016-04-29 | 주식회사 한화 | Apparatus and method for image matching unmanned aerial vehicle image with map image |
-
1996
- 1996-12-30 KR KR1019960076907A patent/KR19980057608A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100782150B1 (en) * | 2007-07-25 | 2007-12-07 | 태양정보시스템(주) | Geodetic surveying method which can correct attribute data of digital map |
| KR101617078B1 (en) * | 2014-02-24 | 2016-04-29 | 주식회사 한화 | Apparatus and method for image matching unmanned aerial vehicle image with map image |
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