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Method for measuring formation of seamless space stereomodel

A spatially three-dimensional and seamless technology, applied in the field of surveying and mapping science, which can solve problems such as complex establishment process

Inactive Publication Date: 2003-04-23
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] This traditional three-dimensional model composed of left and right images is the basis and core of photogrammetry. Since its scope is limited to a small area where the two images overlap and the establishment process is complicated, it is only used as a photogrammetry work. A medium for geographic data collection by the author, after the data collection job is completed, it is discarded and never used again

Method used

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  • Method for measuring formation of seamless space stereomodel
  • Method for measuring formation of seamless space stereomodel
  • Method for measuring formation of seamless space stereomodel

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Embodiment Construction

[0026] First introduce the variable angle projection of the present invention and introduce the parallax method below.

[0027] Such as figure 1 , figure 2 as shown, figure 1 It is the parallax produced by two points on the ground with different heights relative to the reference plane during the original photography, figure 2 is the α used to produce the same parallax as in the original photography 1 and alpha 2 Projection rays from two different angles, from figure 1 , figure 2The geometric relationship in can be known: tgα 1 = B Z 1 tgα 2 = B Z 2 - - - ( 1 )

[0028] In the formula, B is the photography baseline of the stereo pair, and H is the flying height during ph...

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Abstract

The method for generating measurable seamless space stereo model by utilizing projection function includes steps: according to the direction along the air strips sequentially numbering aerophotographs; utilizing digital ground model, using odd umber photographs of 1,3,5...... photographs to make orthogonal image; utilizing digital ground model, using even number photographs of 2,4,6...... photographs to make auxiliary film of orthogonal image, according to ground coordinate inlaying the above-mentioned orthogonal image into a seamless zone, at the same time recording the zone range of every digital orthogonal image in inlaided digital orthogonal image; point-to-point to construct the measurable seamless stereo model.

Description

technical field [0001] The invention belongs to the field of surveying and mapping science and technology, and relates to a method for generating a measurable seamless spatial three-dimensional model that is convenient to construct and use by using aerial images and a digital ground model (DEM). Background technique [0002] The nature we live in is a three-dimensional space. Most of the objects we see are three-dimensional. People are used to measuring an object with three parameters: length, width, and height. Most of the information in three-dimensional space is obtained through human eyes. As the saying goes, "Seeing is better than hearing a hundred times", which vividly describes the important role of the eyes, so the human eye is the most important organ for people to observe and perceive the world. Faced with the gorgeous and charming scenery of nature, people hope to find a new three-dimensional display method to reproduce the natural landscape realistically and thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C11/28
Inventor 王密李德仁龚健雅
Owner WUHAN UNIV
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