Two-dimensional calculation method for target object geographical position based on street view map
A technology of geographical location and target object, which is applied in the field of two-dimensional measurement and calculation of target object geographic location based on street view map, and can solve the problem of not being able to obtain the actual geographical location of target objects in street view pictures
Active Publication Date: 2017-06-13
周良辰
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Problems solved by technology
[0006] The present invention aims to solve the problem that the existing street view map cannot obtain the actual geographic location of the target in the street view picture
Method used
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Embodiment 1
[0029] This embodiment takes Google's street view map as an example to further describe the technical solution of the present invention. Such as figure 1 Shown, flow process of the present invention comprises the following steps:
[0030] Step 1: In the Google Street View map, for a target to be measured, select a suitable viewpoint that contains the target to be measured within two viewing angles;
[0031] Step 2: Obtain the latitude and longitude of the two viewpoints selected in the street view map;
[0032] Step 3: Add draggable markers at the two selected viewpoints, and drag the two markers to the position of the target under the viewpoint corresponding to the markers;
[0033] Step 4: Obtain the latitude and longitude of the marked point after dragging;
[0034] Step 5: According to the two viewpoints and the latitude and longitude of the target under the two viewpoints, construct two non-parallel spatial straight lines in the Cartesian coordinate system; the schemat...
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The invention discloses a two-dimensional calculation method for a target object geographical position based on a street view map. The calculation method comprises steps as follows: a target object is selected firstly from the street view map, and two proper view points are selected according to the target object; the longitude and the latitude of each view point are acquired, a dragging mark point is added in the position where each of the two view points is located, each marking point is dragged to the position of the target object in the street view map at the corresponding view point, and the geographical coordinates, namely, the longitude and the latitude of the target object at the corresponding view point, of each moved mark point are obtained; two spatial lines are determined on the cartesian coordinate system according to the longitude and the latitude of each known view point and the longitude and the latitude of the target object at the corresponding view point, and a point of intersection, namely, the longitude and the latitude of the target object in a practical geographical space, is solved. According to the method, existing street view resources are effectively utilized, the geographical position of a ground object in the street view map is directly obtained, and further application of the existing street view resources in smart city, smart traffic and other fields is facilitated.
Description
technical field [0001] The present invention relates to the fields of street view map, electronic cartography, photogrammetry, GIS, Web service, computer graphics, etc. Its purpose is to realize the direct measurement of the actual geographical position of the target object in the street view map on the basis of the existing street view map resources . It specifically involves Http requests, determination of spatial straight lines under the Cartesian coordinate system, front intersection, etc. Background technique [0002] Street View is a reality map service. Provide users with city, street or other environments with street panoramas of 360° in horizontal direction and 180° in vertical direction. Users can get an immersive map browsing experience through this service. Through Street View, you can truly see high-definition scenes on the street as long as you sit in front of the computer. It is a three-dimensional virtual display technology that uses multiple cameras to co...
Claims
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IPC IPC(8): G01C21/20
CPCG01C21/20
Inventor 闾国年闾征远周良辰
Owner 周良辰