Adjustingmethod and adjusting device of human face focusing definition

An adjustment method and a technology of an adjustment device, which are applied in the field of photography, can solve problems such as unclear faces and error-prone, and achieve the effects of avoiding unclear shooting, good definition and display effect

Inactive Publication Date: 2016-08-17
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method and device for improving the focus definition of a human face, aiming to solve the problem that the existing technology is prone to mistakes when shooting a human face, resulting in the unclearness of the photographed human face

Method used

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  • Adjustingmethod and adjusting device of human face focusing definition
  • Adjustingmethod and adjusting device of human face focusing definition
  • Adjustingmethod and adjusting device of human face focusing definition

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no. 4 example

[0060] Because in different smart mobile terminals, especially in smart phones, each manufacturer has different camera settings or optimizations. Therefore, for the current camera settings of most smart phones, Figure 4 The fourth embodiment provided by the present invention is shown, and step S3 in this embodiment specifically includes:

[0061] S31. Determine the position of the focus point according to the focus value, and if the focus value is greater than a preset focus threshold, use the current focus point as the focus point for shooting.

[0062] S32. If the focus value is less than the preset focus threshold, it is determined that the focus point is placed incorrectly, and the default focus point is used as the shooting focus point.

[0063] In this embodiment, the focus points are divided from far to near, and the focus value of the focus points decreases in order from far to near, and then according to the actual test of photographing clarity in practical applicati...

no. 5 example

[0067] Furthermore, in order to be able to output a better quality and clearer picture after receiving the user's photographing operation, the present invention also shows Figure 5 In the fifth embodiment shown, a method for improving the focus definition of a human face also includes:

[0068] S4, receiving a photographing operation of the user, photographing an image with the photographing focus point, and then performing image processing on the photographed image and outputting it.

[0069] In this embodiment, after receiving the user's photographing operation, the image is captured with the focus point confirmed in the fourth embodiment, and then the image is processed and output and displayed on the display screen of the smart mobile terminal. For users who have higher requirements on images, this embodiment can process the captured images and then output them. The image processing mentioned in this embodiment includes but is not limited to denoising, image enhancement, ...

no. 8 Embodiment

[0091] Furthermore, in order to be able to output a better quality and clearer picture after receiving the user's photographing operation, the present invention also shows Figure 8 In the eighth embodiment shown, a device for improving the focus definition of a human face also includes:

[0092] The photographing unit 4 is configured to receive a photographing operation of a user, photograph an image with the photographing focus point, and then process the photographed image before outputting it.

[0093] In this embodiment, after receiving the user's photographing operation, the photographing unit 4 captures an image with the photographing focal point confirmed in Embodiment 7, and then outputs and displays the image on the display screen of the smart mobile terminal after image processing. For users with high image requirements, the shooting unit 4 provided in this embodiment can process the captured image and then output it. The image processing mentioned in this embodimen...

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Abstract

The invention belongs to the technical field of camera shooting, and discloses a method and device for promoting human face focusing definition. The method comprises the following steps: acquiring an image of a shot personnel to acquire a human face region in the image; focusing on the human face region to acquire a focusing value of a focusing point; judging whether the focusing value is less than a preset focusing threshold value, if the focusing value is less than the focusing threshold value, using a default focusing point a shooting focusing point to focus on the human face region. The shooting focusing is performed through the judgment whether the focusing value of the focusing point is in the preset focusing threshold value, and different solutions are implemented according to different focusing values, if the focusing value is in the preset focusing threshold value, a clear picture can be shot without changing the focusing point, if the focusing value exceeds the preset focusing threshold value, the clear picture can be shot after the focusing point is adjusted, and the human face tracking recognition and the image processing output are used before focusing so as to obtain better image definition and display effect.

Description

technical field [0001] The invention belongs to the technical field of imaging, and in particular relates to an adjustment method and an adjustment device capable of improving the focus definition of human faces. Background technique [0002] With the development of smart mobile terminals, users use the smart mobile terminals to take pictures more and more frequently, and the users hope to take pictures of clear human faces according to needs during use. [0003] The existing technology generally uses FACE AF (FACE Automatic Focus) to focus, which can make the portrait the clearest. However, due to the uncertainty of the face during the shooting process, for example, people are moving and the size of the face is different. Both will bring recognition difficulties to FACE AF, which will make it easy to make mistakes when shooting faces, and the captured faces will not be clear. Contents of the invention [0004] The present invention provides a method and device for improv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232G06K9/00
CPCG06V40/168H04N23/67H04N23/611
Inventor 李小朋
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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