Method for measuring distance by parallax of object on image

A target and image technology, which is applied in line-of-sight measurement, distance measurement, and measurement devices, etc., can solve the problems of loss of depth information and the inability of two-dimensional infrared images to represent scene geometry information, so as to achieve distance measurement and reduce matching time. , the effect of improving efficiency

Inactive Publication Date: 2017-07-04
XIAN UNIV OF POSTS & TELECOMM
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  • Abstract
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  • Claims
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Problems solved by technology

However, a single two-dimensional infrared image cannot represent the geometric information of the scene, that is, the depth information is lost in the imaging process of the infrared camera

Method used

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Embodiment Construction

[0019] 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 specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] A method for measuring distance using target object parallax on an image, comprising the steps of:

[0021] S1. Choose the same two cameras and the same lens model, and the two infrared cameras are fixed in a custom metal frame after leaving the factory, and the two cameras are installed in parallel to meet the ideal state of parallel optical axes during installation. The baseline design distance is 15cm...

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Abstract

The invention discloses a method for measuring a distance by parallax of an object on an image. The method comprises calibrating an infrared binocular camera to obtain inner parameters and structural parameters of a system, calculating a baseline distance, extracting significant characteristics of the binocular image through a visual significance model, and determining a significant target distance. Compared with the conventional technology, the method for measuring a distance by parallax of an object on an image can realize significant characteristic extraction of the binocular image and significant target division, reduce an object range, reduce matching time, improve efficiency, calculate parallax through significant target key point matching and measure a distance. The object is on a vertical surface so that error matching key points are well screened and accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of image distance measurement, and more specifically relates to a method for distance measurement using the parallax of an object on an image. Background technique [0002] Ranging has high practical value in all aspects of human life, and has very important research value for human progress and development. With the development of human society, ranging from the most primitive estimation to the production of measuring tools and then to the birth of modern high-tech measuring instruments, the theory of ranging technology has tended to be complete. There are many measurement methods related to distance measurement, which can be divided into two types from the level of contact: contact measurement and non-contact measurement. Contact measurement requires direct contact between the measuring tool and the surface of the measured object, and the process generally needs to be completed manually; non-contact measu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C3/32G06K9/46
CPCG01C3/32G06V10/464
Inventor 岳颀沈建冬于福华
Owner XIAN UNIV OF POSTS & TELECOMM
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