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Ruler used for measuring geometrical characteristics of two-dimensional image

A technology of geometric features and two-dimensional images, used in measuring devices, bendable rulers, instruments, etc., can solve problems such as low precision, and achieve the effect of improving precision and measurement accuracy

Active Publication Date: 2013-03-13
北京亿鸿德利信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem of low accuracy of existing scales used for measuring geometric features of scenes in images, the present invention provides a scale for measuring geometric features in two-dimensional images

Method used

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  • Ruler used for measuring geometrical characteristics of two-dimensional image
  • Ruler used for measuring geometrical characteristics of two-dimensional image
  • Ruler used for measuring geometrical characteristics of two-dimensional image

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Embodiment Construction

[0025] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] Figure 1 to Figure 4 An example of the scale of the present invention is shown. The ruler of the invention is used to measure the geometric features of objects and scenes in two-dimensional images. To achieve the accuracy of actual measurement on the spot by measuring the image, a relationship needs to be established between the world coordinate system (ie, the on-site coordinate system) and the image coordinate system. The ruler of the present invention is placed on the scene when the scene is imaged, and is reflected in the image. Since the geometric data of the ruler is known, the ruler acts as a bridge to establish the relationship between the world coordinate system and the image coordinate system. The typical application scene of the scale of the present invention is at the scene of dealing with traffic accidents. At the sc...

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Abstract

The invention provides a ruler used for measuring geometrical characteristics of a two-dimensional image. The ruler comprises a central connecting piece, and a plurality of support rods connected with the central connecting piece, wherein the support rods are distributed in a plane radiation manner by the central connecting piece; a measuring ruler is arranged between the adjacent support rods, and is connected with the adjacent support rods; and a straight line taken as the measuring reference is arranged on each measuring ruler. The ruler is applied to the field of field image measurement, and particularly suitable for the image measurement of the scene of a traffic accident.

Description

technical field [0001] The invention relates to a scale used in the process of measuring geometric features such as actual dimensions of objects and scenes in photographic images. Background technique [0002] In many outdoor scenes, when it is necessary to measure the size of specific objects and the positional relationship between objects, the efficiency is often low due to the long duration. Especially for scenes that have relatively strict requirements for maintaining the state of the scene, such as accident scenes such as traffic accidents, due to the interference of uncontrollable factors during the long-term measurement process, the scene that actually needs to be measured is often destroyed, resulting in the loss of the basis for identifying the accident. . [0003] With the development of digital image processing technology, people have developed a technology to measure the geometric characteristics of the actual situation by using on-site image photos. The main p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B3/10G01B1/00
Inventor 梅冰松张雷刘汉冬
Owner 北京亿鸿德利信息技术有限公司