Digital zoom control method and mobile terminal

A mobile terminal and digital zoom technology, applied in the field of communication, can solve problems such as restricting users' hands, achieve the effect of increasing functions and improving user experience

Inactive Publication Date: 2017-07-21
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] An embodiment of the present invention provides a digital zoom control method to solve the problem that the manual zoom of a mobile terminal restricts the user's hands

Method used

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  • Digital zoom control method and mobile terminal
  • Digital zoom control method and mobile terminal
  • Digital zoom control method and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for controlling digital zoom provided by an embodiment of the present invention is introduced in detail.

[0028] refer to figure 1 , showing a flow chart of a digital zoom control method in an embodiment of the present invention, which is applied to a mobile terminal with a front camera and a rear camera, and the method includes:

[0029] Step 101 , acquiring a user image captured by a front camera.

[0030] In this embodiment, during the shooting process, the user can take a selfie with the front camera, or take pictures of other people or scenes with the rear camera. According to the shooting preview requirement of the user, the image collected by the front camera or the rear camera is displayed on the display screen of the mobile terminal as a shooting preview image. In this process, the mobile terminal obtains user images collected by the front camera by turning on the front camera for subsequent identification. The mobile terminal may be provided with ...

Embodiment 2

[0041] refer to figure 2 , shows a flow chart of a digital zoom control method in another embodiment of the present invention.

[0042] Step 201, acquire the user image collected by the front camera.

[0043] This step 201 is the same as step 101 in the first embodiment, and will not be repeated here.

[0044] Step 202, detecting a human face area in the acquired image of the user.

[0045] In this embodiment, after the image of the user is acquired, the face area is detected from the acquired image of the user. Specifically, the image of the face area may include histogram features, color features, template features, structural features, and Haar (rectangle) features, etc., and the face area is determined by detecting these characteristic information. In the embodiment of the present invention, preferably, according to the rectangular feature of the user image, the position coordinates of the face area are obtained, so as to determine the face area in the user image. For...

Embodiment 3

[0067] A mobile terminal provided by an embodiment of the present invention is introduced in detail, which can realize the details of the digital zoom control method in Embodiment 1 to Embodiment 2, and achieve the same effect.

[0068] refer to image 3 , shows a block diagram of a mobile terminal in an embodiment of the present invention, the mobile terminal has a front camera and a rear camera, and the mobile terminal includes an image acquisition module 301, a visual focus area determination module 302, a human eye Operation detection module 303, zoom type determination module 304, digital zoom module 305:

[0069] An image acquisition module 301, configured to acquire user images collected by the front camera;

[0070] A line-of-sight focus area determination module 302, configured to determine the line-of-sight focus area of ​​the user on the photo preview area of ​​the mobile terminal according to the user image;

[0071] The human eye operation detection module 303 i...

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Abstract

The invention provides a digital zoom control method and a mobile terminal. The mobile terminal is provided with a front camera and a back camera, the method comprises the following steps: obtaining a user image collected by the front camera; determining an eyesight focusing area of a user on a shooting preview area of the mobile terminal according to the user image; detecting an eye operation of the user; determining a focusing type corresponding to the eye operation, wherein the focusing type comprises amplifying the image and shrinking the image; and performing digital zoom on the shooting preview area with the eyesight focusing area as the center according to the focusing type. By adoption of the digital zoom control method provided by the embedment of the invention, the mobile terminal can well accomplish automatic digital zoom just by using the devices of the current terminal without increasing hardware, thereby increasing the functions of the mobile terminal and improving the user experience.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a digital zoom control method and a mobile terminal. Background technique [0002] With the advancement of technology and the development of society, mobile terminals have been integrated into our lives, and at the same time, the camera function has become one of the indispensable functions of mobile terminals. At present, the digital zoom is manually adjusted by the mobile terminal to take pictures or videos, that is, to determine whether the image on the preview interface becomes larger or smaller by detecting whether the distance between two points on the screen of the finger increases or decreases. Manual zooming restricts the user's hands, which is not conducive to the user's use. Contents of the invention [0003] An embodiment of the present invention provides a digital zoom control method to solve the problem that the manual zoom of a mobile terminal restricts t...

Claims

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Application Information

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IPC IPC(8): H04N5/232
CPCH04N23/67H04N23/611
Inventor 郝鹏飞
Owner VIVO MOBILE COMM CO LTD
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