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Camera hyperfocal distance calculating method and system

A calculation method and technology of a calculation system, applied in image communication, television, electrical components, etc., can solve the problems that traditional calculation methods are no longer applicable, and achieve the effect of improving the effect of taking photos

Active Publication Date: 2017-05-17
ZHONGTIAN COMM TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the digital image sensor used in mobile phone cameras uses pixels as technical indicators, making traditional calculation methods no longer applicable

Method used

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  • Camera hyperfocal distance calculating method and system
  • Camera hyperfocal distance calculating method and system
  • Camera hyperfocal distance calculating method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] like figure 1 As shown, this embodiment relates to a calculation system for the hyperfocal distance of a camera. Preferably, the camera is a camera installed on a mobile terminal. Specifically, the system includes a focal length measurement module, an aperture measurement module, a pixel size acquisition module and a calculation module; wherein, the focal length measurement module is used to measure the focal length of the camera to obtain the focal length value of the camera, and transmits the focal length value to the calculation module; the aperture measurement module is used to measure the aperture of the camera to obtain the aperture value of the camera, And the aperture value is transmitted to the calculation module; the pixel size acquisition module is used to obtain the pixel size of the camera and the pixel size is transmitted to the calculation module; the calculation module is connected with the focal length measurement module, the aperture measurement module ...

Embodiment 2

[0060] like figure 2 As shown, this embodiment relates to a method for calculating the hyperfocal distance of a camera. Specifically, the method includes the following steps:

[0061] Step S1, providing a camera, preferably, the camera is a camera applied to a mobile terminal.

[0062] In a preferred embodiment of the present invention, the above-mentioned mobile terminal is a handheld mobile terminal device such as a mobile phone or a tablet computer.

[0063] Step S2, measure the camera to obtain the focal length value and the aperture value of the camera;

[0064] In a preferred embodiment of the present invention, the focal length value of the above-mentioned camera is the effective focal length of the lens used in the camera, represented by the letter F, and the unit is millimeter (mm).

[0065] In a preferred embodiment of the present invention, the aperture value of the camera is the F / NO value of the lens used by the camera, which is an abbreviation of F-Number, whi...

example 1

[0080] Example 1: Mobile phone camera A, and the focal length value of the mobile phone camera A is F=3.85mm and the pixel size is c=1.4um obtained through measurement, then the hyperfocal distance values ​​of the mobile phone camera A with different apertures are shown in Table 1:

[0081]

[0082] Table 1

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Abstract

The invention relates to the optical lens focal length calculating technology field, and especially relates to a camera hyperfocal distance calculating method and system. After a focal length value and an aperture value of a camera and a model of an image sensor are obtained, the focal length value, the aperture value and the model of the image sensor are input to a camera hyperfocal distance calculator, the camera hyperfocal distance calculator obtains a pixel dimension of the camera according to the model of the image sensor, and the calculator automatically calculates a hyperfocal distance value of the camera on the basis of the pixel dimension, the focal length value and the aperture value of the camera. Therefore, a mobile terminal user and a mobile terminal camera debugging worker can conveniently calculate a hyperfocal distance value of a mobile terminal camera, and thus shooting effects of users can be improved.

Description

technical field [0001] The invention relates to a calculation technology for the focal length of an optical lens, in particular to a calculation method and system for the hyperfocal distance of a camera. Background technique [0002] With the continuous upgrading of mobile terminal systems and hardware configurations, especially the continuous improvement of camera technology and technology, the camera function has become an important function in mobile phones or tablets, and even the camera effect of mobile terminals has become an important feature when people choose to buy mobile One of the main factors to consider when terminal. [0003] In recent years, the digital camera function of mobile phones has been developed rapidly. With the improvement of camera pixels, its shooting effect is getting closer and closer to that of traditional compact cameras or even low-end SLR cameras. Mobile phone cameras are divided into built-in and external cameras. Built-in cameras are mo...

Claims

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Application Information

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IPC IPC(8): H04N17/00
CPCH04N17/002
Inventor 曹东伟
Owner ZHONGTIAN COMM TECH CO LTD
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