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Image split joint method for long-distance telemetering measurement

An image mosaic and image technology, which is applied in the directions of measuring devices, surveying and navigation, photogrammetry/video metrology, etc., can solve the problems affecting the measurement accuracy, large deviation between the picture and the real object, and large stitching error, so as to achieve high measurement accuracy , convenient measurement, small difference in kind

Active Publication Date: 2011-11-09
HEXAGON METROLOGY SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After receiving the images at the measurement site, alignment stitching is performed according to the overlapping parts of the images. This stitching method has cumulative errors, that is, the more images, the greater the stitching error, and the large deviation between the stitched picture and the real object, which greatly affects the measurement accuracy.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The image mosaic method of the measurement plane described in the present invention comprises the following steps:

[0012] (1), the measured plane is taken into multiple images, or multiple images are taken on the measured plane, and a coordinate point and the direction of the coordinate point are arbitrarily determined on each image, and all coordinate points come from the same coordinate system;

[0013] (2) Input the image and its determined coordinate points into the computer and store it as an electronic file, which is convenient for subsequent sending;

[0014] (3) Output and map the image onto a template: first align the coordinate point of one of the images as a reference point with a certain coordinate point on the template, and then obtain the coordinates determined in step (1) of other images through conversion. The position on the template, and through the direction of the coordinate point, to determine the position and direction of other images mapped to t...

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Abstract

This invention relates to the technique field of image grafting, especially it is a sort of image grafting method of exotic remote measurement. It includes this approach in that: (1)The measured plane shoots several image, and it ensures the coordinate points and the coordinate direction of every image, the whole coordinate point come from the identical coordinate system. (2)It makes the images and the assured coordinate point to the computer, at the same time the computer progress storage. (3)It exports the images and reflex those to a template, then it get hold of the position in the template of the coordinate which is confirmed by other images by the conversion, thereout it ensures the position that other images reflex to the template, namely it completes the grafting. This grafting issimple and applied, the orientation of the grafting is nicety and the error is a little. The images after grafting have a few different to the practicality, thereout it obtains the size of the practicality by the measure of the images directly. This measure is convenient and the metrical precision is high.

Description

Technical field: [0001] The invention relates to the technical field of image splicing, in particular to an image splicing method for remote measurement in different places. Background technique: [0002] With the development of electronic technology, computer-aided measurement has been widely used. Generally, computer measuring instruments use digital lenses to image objects and send them to computers, which then measure them. For remote telemetry, it is usually to take an image of the measured object and send it to the measurement site in electronic form. However, after receiving the image, how to stitch the image and the accuracy of the stitching have a great impact on the subsequent measurement. The existing image stitching method is to overlap and shoot the measured object, that is, two adjacent images partially overlap. After receiving the images at the measurement site, alignment stitching is performed according to the overlapping parts of the images. This stitching ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C11/00G01C11/04
Inventor 徐春云
Owner HEXAGON METROLOGY SPA