Mobile terminal and focusing method

A mobile terminal and object technology, applied in the field of photography, can solve the problems of not realizing the automatic focus function of the front camera, the indistinct degree of picture details, and the lack of layering in the scene, so as to improve the experience, focus quickly, and have a strong sense of layering Effect

Inactive Publication Date: 2016-08-03
NUBIA TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The front camera of the mobile phone is generally used by users to take selfies or video calls. These scenes are close-up shots. Due to the short distance, it will become difficult to achieve autofocus. Therefore, some mobile phone manufacturers have not implemented autofocus for the front camera. function, without the focus function, the captured scene will lack a sense of hierarchy, and the distinction of the details of the picture will not be obvious

Method used

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  • Mobile terminal and focusing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] The mobile terminal 100 described in this embodiment adopts figure 1 The hardware structure shown is, of course, in the figure 1 On the basis of the actual implementation, it can be implemented in the mobile terminal 100 as needed figure 2 Some or all of the functional modules shown in .

[0082] Such as figure 1 As shown, the mobile terminal 100 described in this embodiment is provided with a camera 121. Generally, the camera 121 is arranged on the back panel of the mobile terminal 100 to become the rear camera 121. In order to meet the needs of business scenarios such as video calls, the camera 121 can be It is set on at least one of the front panel and rear panel of the mobile terminal 100; of course, the mobile terminal 100 may also only set the camera 121 on the front panel.

[0083] Such as Figure 3-1 as shown, figure 1 The shown distance sensor 142 is implemented as a distance sensor 143 in this embodiment, for example, it can be an infrared distance senso...

Embodiment 2

[0103] The mobile terminal 100 described in this embodiment adopts figure 1 The hardware structure shown is, of course, in the figure 1 On the basis of the actual implementation, it can be implemented in the mobile terminal 100 as needed figure 2 Some or all of the functional modules shown in .

[0104] Such as Figure 3-2 As shown, the mobile terminal 100 described in this embodiment is provided with a camera 121. Generally, the camera 121 is arranged on the back panel of the mobile terminal 100 to become the rear camera 121. In order to meet the needs of business scenarios such as video calls, the camera 121 can be It is set on at least one of the front panel and rear panel of the mobile terminal 100; of course, the mobile terminal 100 may also only set the camera 121 on the front panel.

[0105] Such as Figure 5 as shown, figure 1 The shown ranging sensor 142 is implemented as a binocular camera 143 in this embodiment, and the binocular camera 143 includes two lens m...

Embodiment 3

[0113] Corresponding to the focusing processing of the mobile terminal 100 described in the foregoing embodiments, this embodiment provides a focusing method applied to a mobile terminal, see Figure 7 , including the following steps:

[0114] Step 101, sensing objects in the environment to obtain sensing data characterizing the position of the objects in the environment.

[0115] Step 102, based on the sensing data, determine the object distance parameter formed by the object relative to the camera 121, and determine the image distance parameter used by the camera 121 based on the object distance parameter;

[0116] The image distance parameter is determined based on the following correspondence between the object distance parameter, the focal length parameter of the camera 121 , and the image distance parameter: the sum of the reciprocal of the object distance parameter and the reciprocal of the image distance parameter is equal to the reciprocal of the focal length paramete...

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Abstract

The present invention discloses a mobile terminal and a focusing method. The mobile terminal comprises a distance measuring sensor used for sensing an object in an environment and outputting the sensing data representing the position of the object in the environment; a controller used for determining an object distance parameter of the object formed relative to a camera based on the sensing data, and determining an image distance parameter used by the camera based on the object distance parameter; the camera used for adjusting the distance between a lens of the camera and an image plane corresponding to the camera under the control of the controller and based on the image distance parameter. According to the present invention, the automatic and rapid focusing of the camera can be realized.

Description

technical field [0001] The invention relates to camera technology, in particular to a mobile terminal and a focusing method. Background technique [0002] Today's smartphones on the market are equipped with front and rear cameras, and the rear camera generally has a focusing function, but the front camera does not. These are related to the user's use environment and the hardware parameters of the lens. [0003] The front camera of the mobile phone is generally used by users to take selfies or video calls. These scenes are close-up shots. Due to the short distance, it will become difficult to achieve autofocus. Therefore, some mobile phone manufacturers have not implemented autofocus for the front camera. If there is no focus function, then the captured scene will lack a sense of hierarchy, and the distinction of the details of the picture will not be obvious. With the development of hardware technology, the production process is becoming more and more detailed, and the prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232H04N5/225
CPCH04N23/57H04N23/67H04N23/62
Inventor 郭云广
Owner NUBIA TECHNOLOGY CO LTD
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