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Automatic focusing method, device and electronic equipment

An automatic focus and focus area technology, applied in the field of photography, can solve problems such as focus errors and unclear object images, and achieve the effect of improving user experience and clear images.

Active Publication Date: 2018-05-25
BANMA ZHIXING NETWORK HONGKONG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present application provides an autofocus method and device to solve the problem that in the prior art, when performing short-distance autofocus on an object with a complex shape with a height difference, there may be a focus error, which may cause the image of some objects expected by the photographer to be unclear. The problem

Method used

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  • Automatic focusing method, device and electronic equipment
  • Automatic focusing method, device and electronic equipment
  • Automatic focusing method, device and electronic equipment

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Embodiment Construction

[0069] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar promotions without violating the connotation of the present application. Therefore, the present application is not limited by the specific implementations disclosed below.

[0070] In the present application, an auto-focus method, an auto-focus device, and an electronic device are respectively provided. Each will be described in detail in the following examples.

[0071] The autofocus method provided in this application can be applied to digital cameras, video cameras, and terminal equipment equipped with imaging devices, and the terminal equipment can include smart phones, tablet computers, notebook computers, desktop computers, and vehicle-mounted electronic equipment. Embodiments of...

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Abstract

The application discloses an automatic focusing method, comprising the steps of: acquiring an image captured via a lens by using an image sensor; identifying each object area from the image in a preset focusing area; selecting a first object area from each object area in a preset manner; and performing a focusing operation such that the definition of the image acquired by the image sensor and located in the first object area satisfies a preset requirement. The application provides an automatic focusing device and electronic equipment at the same time. According to the method, during short-distance preview or photographing, a small-area object that has a height difference with a photographed object body inside the focusing area can also be correctly focused, so that the image of part of anobject is clear as expected by a photographer, and the user experience can be effectively improved.

Description

technical field [0001] The present application relates to camera technology, in particular to an autofocus method. The present application also relates to an automatic focusing device and an electronic device. Background technique [0002] With the widespread application of digital cameras and video cameras, and the popularization of terminal equipment equipped with imaging devices, more and more users use the above-mentioned equipment for shooting in work and life. The basic principle of shooting is: when the lens is facing the subject, the light that shines on the subject is reflected to the lens, passes through the lens and reaches the image sensor (imaging on the plane where the image sensor is located), and the light signal is converted into an electrical signal by the image sensor. After receiving the signal, the image of the subject is finally obtained and displayed in real time on the preview interface on the display. If it is detected that the user performs a shoot...

Claims

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Application Information

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IPC IPC(8): H04N5/232
CPCH04N23/67
Inventor 胡粤
Owner BANMA ZHIXING NETWORK HONGKONG CO LTD
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