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Automatic focusing control system and method

A technology for automatic focusing and control system, which is applied to focusing devices, components of TV systems, TVs, etc., and can solve the problems of inaccurate automatic focusing position and focusing failure.

Active Publication Date: 2012-07-18
盛司潼
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an automatic focus control system and method, aiming to solve the problem of focusing failure caused by the inaccurate automatic focus position of the imaging device in the prior art

Method used

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  • Automatic focusing control system and method
  • Automatic focusing control system and method

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0040] figure 1 A schematic structural diagram of an automatic focus control system in an embodiment of the present invention is shown. The system includes:

[0041] (1) The focusing module 1 is used to adjust the distance between the imaging device and the image acquisition position, and adjust the imaging device to the best focus position.

[0042] (2) Image acquisition module 2, used to control the imaging device to acquire images.

[0043] (3) The image processing module 3 is used to filter out the interference signal in each image, and obtain the best focus position through analysis according to the size of the useful signal intensity in each image.

[0044] The imaging device in this implementation is not particularly limited, and a genera...

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Abstract

The invention relates to a field of automatic optical focusing and provides an automatic focusing control system and a method. The method includes the steps of A. adjusting a distance between an imaging device and a picture acquisition position more than once by a focusing module; B. using the imaging device to acquire images after an image acquisition module receives an image acquisition command, so that images are obtained; C. filtering out interference signals in every image after an image processing module receives images, and obtaining the best focusing position through analysis according to the intensity of effective signals in every image; and D. controlling the imaging device to move to the best focusing position after the focusing module receives a command that the best focusing position is focused. The system comprises the focusing module, the image acquisition module and the image processing module. The system and the method enable automatic focusing to be precise.

Description

technical field [0001] The present invention relates to the field of optical autofocus, and more specifically, to an autofocus control system and method. Background technique [0002] Autofocus is one of the key technologies in the imaging system. It is an important factor that determines the image quality of the imaging device and is the first step to obtain a clear image. The focusing performance depends on the accuracy and effectiveness of the focusing function, that is, the adjustment The focal function must have good unbiasedness, strong unimodality and strong anti-noise performance. [0003] In one prior art, after manually adjusting the distance between the imaging device and the image collection position, that is, manually adjusting the focus, the lens of the imaging device is moved to collect multiple images, and two-point focusing is performed on the clarity of the collected multiple images The filter function analysis is used to obtain the focus point of the auto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232G03B13/36G02B7/36
Inventor 盛司潼
Owner 盛司潼