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Distance calibration and measurement method and system based on image shoot

A technology of image capture and calibration method, which is applied in the direction of line-of-sight measurement, measuring device, measuring distance, etc., and can solve the problem that the distance measurement method is not simple enough

Active Publication Date: 2012-10-03
SHENZHEN TAISHAN SPORTS TECH CO LTD
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a distance calibration and measurement method and system based on image shooting for the shortcomings of the existing distance measurement methods.

Method used

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  • Distance calibration and measurement method and system based on image shoot
  • Distance calibration and measurement method and system based on image shoot
  • Distance calibration and measurement method and system based on image shoot

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Embodiment Construction

[0047] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0048] The present invention solves the problem of automatic distance measurement, and uses a camera to shoot scene videos including the moving process of the target object in the real area to be measured, and then calculates the moving distance.

[0049] The present invention mainly includes two parts of calibration operation and measurement operation, which will be introduced in detail below.

[0050] 1. Calibration operation

[0051] The calibration operation of the present invention refers to the corresponding relationship between the position coordinates in the image captured by the camera device and the position coordinates of the real area to be measured is obtained through calibration in advance. Before the distance measurement, the area t...

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Abstract

The invention relates to a distance calibration and measurement method and system based on image shoot. The method comprises the following steps of: pre-obtaining a corresponding relationship between a position coordinate in an image shot by a camera device and a position coordinate of a real area to be measured through calibration; shooting process images of moving of a target object in the real area to be measured; extracting a start frame and an end frame of moving of the target object from the shot process images; and obtaining the position coordinate of the target object in the start frame and the end frame, respectively calculating the position coordinates of the corresponding real areas to be measured based on the obtained corresponding relationship based on the calibration, and calculating the moving distance based on the position coordinates of the both real areas to be measured. According to the method and the system, the automation measurement for distance based on a vision technology is realized. The operation is simple, and the accuracy of a measuring result is high.

Description

technical field [0001] The present invention relates to the field of computer vision recognition, more specifically, to a distance calibration and measurement method and system based on image shooting. Background technique [0002] At present, in occasions where distance measurement is required, such as long jump competitions and assessments, most of the jumping distances are measured using a soft ruler, and this method is time-consuming and laborious to operate. Another way is to use, for example, a long jump measuring pad for measurement, which is relatively bulky and inconvenient to operate. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a distance calibration and measurement method and system based on image shooting for the defect that the existing distance measurement method is not simple enough. [0004] The technical solution adopted by the present invention to solve the technical problems is: construct ...

Claims

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Application Information

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IPC IPC(8): G01C3/00
Inventor 柳林祥
Owner SHENZHEN TAISHAN SPORTS TECH CO LTD
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