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Ranging method and mobile terminal

A technology of a mobile terminal and a ranging method, applied in the field of measurement, can solve the problems of small ranging range, high complexity and high cost of mobile terminals

Inactive Publication Date: 2018-06-29
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a ranging method and a mobile terminal to solve the existing problems of small ranging range and high complexity and cost of the mobile terminal for ranging by using the mobile terminal

Method used

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  • Ranging method and mobile terminal

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Experimental program
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Embodiment 1

[0026] A ranging method provided by an embodiment of the present invention is introduced in detail.

[0027] refer to figure 1 , shows a flow chart of steps of a ranging method in an embodiment of the present invention.

[0028] Step 110 , for the same target object, respectively acquire the imaging area of ​​the camera of the mobile terminal at the same position under the first focal length condition and the second focal length condition.

[0029] A distance measurement method proposed by the embodiment of the present invention can realize distance measurement based on the camera system of the mobile terminal, and at present almost all mobile terminals are equipped with a camera system, so it can be used without increasing the complexity and cost of the mobile terminal. Realize long-distance measurement, enrich the functions and usage scenarios of mobile terminals, and improve user experience.

[0030] In practical applications, the optical zoom imaging of the camera of the...

Embodiment 2

[0041] A ranging method provided by an embodiment of the present invention is introduced in detail.

[0042] refer to image 3 , shows a flow chart of steps of a ranging method in an embodiment of the present invention.

[0043] Step 210, when the camera is located at the same position to photograph the target subject under the first focal length condition, acquire a first photosensitive area of ​​the photosensitive sensor of the mobile terminal for the target subject.

[0044] In the embodiment of the present invention, the photosensitive area of ​​the photosensitive sensor in the photographing system of the mobile terminal for the same target subject can be used as the corresponding imaging area, and the imaging pixels of the target subject in the photosensitive sensor of the mobile terminal can be read The number of points is used as its photosensitive area. Specifically, the number of imaging pixels of the target subject in the photosensitive sensor of the mobile terminal...

Embodiment 3

[0059] A mobile terminal provided by an embodiment of the present invention is introduced in detail.

[0060] refer to Figure 4 , shows a schematic structural diagram of a mobile terminal in an embodiment of the present invention.

[0061] The mobile terminal 300 in the embodiment of the present invention includes: an imaging area acquisition module 310 , an imaging ratio acquisition module 320 and a distance acquisition module 330 .

[0062] The functions of each module and the interaction between each module are introduced in detail below.

[0063] The imaging area acquisition module 310 is configured to respectively acquire the imaging area of ​​the camera of the mobile terminal at the same position under the first focal length condition and the second focal length condition for the same target object.

[0064] The imaging ratio acquisition module 320 is configured to acquire the imaging ratio of the camera under the first focal length condition and the second focal leng...

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Abstract

The invention provides a ranging method and a mobile terminal and relates to the technical field of measurement. The ranging method comprises the following steps of aiming to a same target photographed object, respectively acquiring imaging areas of a camera of the mobile terminal at one position under a first focal length condition and a second focal length condition; according to the imaging areas, acquiring an imaging ratio of the camera under the first focal length condition and the second focal length condition; and according to the imaging ratio, obtaining a distance between the target photographed object and the mobile terminal based on a corresponding relation between the preset imaging ratio and the distance. The ranging method can perform distance measurement within a larger range based on a photographing system native to the mobile terminal, and the complexity and the cost of the mobile terminal are lowered while the ranging ability of the mobile terminal is improved.

Description

technical field [0001] The present invention relates to the technical field of measurement, in particular to a ranging method and a mobile terminal. Background technique [0002] With the development of computer technology and the rapid popularization of mobile terminals such as mobile phones, the functions of mobile terminals are becoming more and more abundant and powerful, and they are more and more inseparable from people's lives. For example, the distance measurement can be performed by the mobile terminal, and other functions can be further realized based on the distance measurement, such as positioning through the distance measurement, obtaining the current orientation information of the user, and so on. At present, the methods for users to measure distance on mobile terminals include ultrasonic distance measurement and infrared distance measurement, and both ultrasonic and infrared distances are calculated by the time difference between emission and reception wavelen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C11/02G01C11/12
Inventor 余强模
Owner VIVO MOBILE COMM CO LTD
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