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Method for measuring distance and image acquisition equipment

A technology for image acquisition and distance measurement, applied in the field of distance measurement, which can solve the problems of large amount of calculation, high cost, and complicated operation of measuring distance.

Active Publication Date: 2013-09-11
LENOVO (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a method for measuring distance and an image acquisition device, which are used to solve the problems of complex distance measurement operation, large amount of calculation, slow matching speed and high cost existing in the prior art

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  • Method for measuring distance and image acquisition equipment
  • Method for measuring distance and image acquisition equipment

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Embodiment Construction

[0064] A method for measuring distance and an image acquisition device provided by the present invention will be described below with reference to specific embodiments and accompanying drawings.

[0065] On the one hand, an embodiment of the present invention provides a method for measuring distance, such as figure 1 As shown, it is a flow chart of the method for measuring distance in this embodiment, including:

[0066] Step 101: Obtain a first image of the reference object and the measured object at the first position, and analyze the respective first position coordinates of the reference object and the measured object in the first image, and the reference object a first parameter characterizing its size at the first position coordinates;

[0067] Step 102: Obtain a second image of the same reference object and the measured object at a second position, and analyze the respective second position coordinates of the reference object and the measured object in the second image,...

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Abstract

The invention discloses a method for measuring distance and image acquisition equipment. The method comprises the following steps of: respectively acquiring corresponding images of a reference object and a tested object at two different positions, and analyzing position coordinates of the reference object and the tested object as well as parameters representing the size of the reference object in a first image and a second image, wherein the different positions are in the direction where the tested object can generate a parallax error; and calculating the distance between the tested object and the image acquisition equipment through a distance algorithm according to the distance between the stored reference object and the image acquisition equipment, the position coordinates of the reference object and the parameters representing the size of the reference object. According to the method, simple operation is required, the distance of the target can be calculated at any time, the efficiency is improved, and the cost is saved.

Description

technical field [0001] The invention relates to the technical field of distance measurement, in particular to a method for measuring distance and an image acquisition device. Background technique [0002] With the rapid development of electronic technology, electronic products are becoming more and more diversified. Using electronic products to measure distance is also an important part of life, especially when going out, measuring the equidistance of target buildings. In the prior art, the distance is detected mainly through the following methods: binocular triangulation distance measurement method, or infrared depth camera to obtain depth information, or the way of using the reflection principle of light. [0003] At present, binocular triangular distance measurement mainly uses the target point to obtain two images from two cameras with a certain distance on the same horizontal line. The parallax of the horizontal coordinates of the two images is d, and the distance betwe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C3/00G01B11/03
Inventor 阳光
Owner LENOVO (BEIJING) CO LTD
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