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Mobile phone length measuring method based on bank card

A technology for measuring length and bank cards, which is applied in the field of machine vision technology, can solve the problems of complex implementation, affecting the stability and versatility of the method, and easy damage and bending of banknotes, and achieve the effect of simple operation, stability and versatility

Inactive Publication Date: 2015-07-29
CHANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, this method uses banknotes as a benchmark, because banknotes are easily damaged and bent, and the types and sizes of banknotes in various countries are different, which seriously affects the stability and versatility of the method. Identifying, analyzing and judging the types of the method makes the implementation of the method complicated

Method used

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  • Mobile phone length measuring method based on bank card
  • Mobile phone length measuring method based on bank card
  • Mobile phone length measuring method based on bank card

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] refer to figure 1 and figure 2 , the detailed steps of the present invention are as follows:

[0029] 1, a kind of mobile phone measuring length method based on bank card, it is characterized in that the method comprises the following steps:

[0030] (1) Place the object to be tested and the bank card on the same plane, adjust the angle of the mobile phone so that the plane where the phone is located is parallel to the plane where the bank card is located, and the mobile phone can simultaneously capture the bank card and the object to be tested in the same image, image 3 It is an image taken by a mobile phone, and the image contains a pen and a bank card of the object to be tested;

[0031] (2) Detect the bank card in the image in the entire image or draw a rectangular area containing the bank card on the touch screen of the mobile phone, de...

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Abstract

The invention relates to a mobile phone length measuring method based on a bank card. The method includes the following steps that (1) a to-be-measured object and the bank card are put in the same plane, angle of a mobile phone is adjusted, and the mobile phone shoots the object and the bank card; (2) the bank card in a picture is detected and the length of the bank card in the picture is calculated; (3) a to-be-detected object in the picture is determined and the length of the to-be-detected object in the picture is calculated; (4) the length of the bank card in the picture is compared with the length of the to-be-detected object in the picture, and actual length of the to-be-detected object is calculated. By means of the mobile phone length measuring method based on the bank card, the problem of size measurement of a target object by the mobile phone is solved, the operation is simple, global unity feature is achieved on basis of length and width of the bank card, the bank card is used as the standard so that the stability and the universality of the method can be further achieved, and the demands of daily life of people can be met.

Description

technical field [0001] The invention belongs to the application field of machine vision technology, in particular to a method for measuring the length of a mobile phone based on a bank card. Background technique [0002] With the continuous development of smart phone technology and the continuous reduction of prices, mobile phones have become more and more popular in people's lives, and have become an indispensable tool in people's lives. The images and videos shot with mobile phones are growing explosively. How to use mobile phones Instantly analyze and process images and videos, and extract useful information from images and videos is becoming more and more important in people's daily life. [0003] In modern production measurement, traditional contact measurement tools, such as rulers, vernier calipers, micrometers, etc., are cumbersome to operate and inconvenient to carry, especially in the process of manual measurement, manual reading and even environmental changes, whi...

Claims

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Application Information

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IPC IPC(8): G01B11/02
Inventor 程起才葛赟张继王洪元郑剑锋
Owner CHANGZHOU UNIV
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