Self-positioning orientation plotting method based on GPS RTK and panoramic image

A technology of panoramic image and mapping method, applied in the field of surveying and mapping, to achieve the effect of rapid acquisition

Active Publication Date: 2015-05-27
WUHAN UNIV
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Problems solved by technology

[0004] At the same time, the traditional spatial forward intersection measurement method needs multiple parameters such as outer

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  • Self-positioning orientation plotting method based on GPS RTK and panoramic image
  • Self-positioning orientation plotting method based on GPS RTK and panoramic image
  • Self-positioning orientation plotting method based on GPS RTK and panoramic image

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Embodiment Construction

[0040] The technical solutions of the present invention will be further described below in conjunction with specific implementation methods and accompanying drawings.

[0041] Concrete flow chart of the present invention sees figure 1 , including the following specific steps:

[0042] Step S1: Preparation for data collection.

[0043] When the three-dimensional coordinates of two ground object points and the intersection angle between the two ground object points and the third unknown space point are known, the three-dimensional coordinates of the unknown space point can be obtained by using the forward intersection principle. Forward intersection refers to the process of setting up stations on known control points A and B to observe the horizontal angle and zenith distance, and calculating the coordinates of the undetermined point P according to the known control point coordinates and observed values. In the forward intersection graph, the angle between the unknown point an...

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Abstract

The invention discloses a self-positioning orientation plotting method based on GPS RTKs and panoramic images. According to the self-positioning orientation plotting method, by utilizing the panoramic images obtained by using a panoramic camera and site coordinates measured by using the GPS RTKs, direct measurement on ground feature in shared areas of two groups of panoramic images can be achieved by using a three-dimensional front intersection calculation method based on a measured intersection angle in a panoramic image spherical model, so that three-dimensional coordinate information of the ground feature of the shared areas of the panoramic images can be rapidly obtained. The purpose that the ground feature is directly measured on the panoramic images can be achieved, and data and site measured distance of the ground feature can be rapidly obtained, so that ground feature information requested by three-dimensional modeling, scene reconstruction and digital city construction can be obtained.

Description

technical field [0001] The invention relates to the technical field of surveying and mapping, in particular to an autonomous positioning and directional mapping method based on GPS RTK and panoramic images. Background technique [0002] RTK (Real Time Kinematic) real-time dynamic control system is a new and commonly used GPS measurement method. Traditional static measurement, fast static measurement, and dynamic measurement all require subsequent calculations to obtain centimeter-level accuracy, while RTK positioning technology is based on the real-time dynamic positioning technology of carrier phase observations, which can provide real-time information on the position of the station in the specified coordinate system. The three-dimensional positioning results, and reaching centimeter-level accuracy, are a major milestone in the application of GPS, which greatly improves the efficiency of field operations, and also provides support for the real-time measurement of site coord...

Claims

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Application Information

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IPC IPC(8): G01C11/00G01C11/08
CPCG01C11/00G01C11/08
Inventor 胡庆武高珅艾明耀
Owner WUHAN UNIV
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