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An automatic focusing method, system, storage medium and device

A technology of automatic focusing and focusing evaluation, applied in the parts of TV systems, TVs, color TVs, etc., can solve the problems of low focusing efficiency, poor reliability of automatic focusing, etc., to reduce costs, reduce the degree of video blur, The effect of saving autofocus time

Active Publication Date: 2022-02-18
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] In view of this, the object of the present invention is to propose an autofocus method, system, storage medium and equipment to solve the problems of poor autofocus reliability and low focus efficiency in the prior art

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  • An automatic focusing method, system, storage medium and device
  • An automatic focusing method, system, storage medium and device
  • An automatic focusing method, system, storage medium and device

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Embodiment Construction

[0051] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0052] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used to distinguish two entities with the same name or different parameters. It can be seen that "first" and "second" " is only for the convenience of expression, and should not be understood as limiting the embodiment of the present invention. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, of a process, method, system, product or other steps or elements inherent in a process, method, system, product, or device comprising a series of steps or elements.

[0053] Based on the above purpo...

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Abstract

The present invention provides an automatic focusing method, system, storage medium and equipment. The method includes: in response to starting the automatic focusing of the focusing lens, controlling the focus motor to start and rotate, and sequentially collecting the focus evaluation value and the corresponding focus position of each frame of image value; based on the current image being the nth frame, judge whether n-1 is an integer multiple of the preset frame interval M; if so, find the maximum focus evaluation value in the focus evaluation values ​​of the current image and its previous images, and find the maximum focus value The focus position value corresponding to the evaluation value is used as the maximum focus position value, and it is judged whether the focus evaluation value of the current image is greater than the focus evaluation value of the n-M frame image; if not, it is judged whether the difference between the two exceeds the preset threshold; if , to determine whether there is a continuous rising sign; if there is, control the focus motor to stop rotating and reverse rotation, and move the focus lens to the focus position corresponding to the maximum focus position value. The invention improves the reliability and efficiency of automatic focusing.

Description

technical field [0001] The present invention relates to the technical field of artificial intelligence, in particular to an automatic focusing method, system, storage medium and equipment. Background technique [0002] Auto focus is to use the principle of object light reflection, the reflected light is received by the sensor on the camera, processed by the computer, and the way to drive the electric focus device to focus is called auto focus. [0003] The focusing process is to move the lens so that the imaging element moves to the best focus position. Moving the lens can directly use a stepper / motor, but the machine doesn't know where the plane of best focus is. People can know whether the imaging element is at the best focus plane by observing the clarity of the imaged image, but the machine does not know whether the image is clear, so it is necessary to let the machine know the clarity of the imaged image at the current focus position. The sharpness of the picture is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232
CPCH04N23/67H04N23/695
Inventor 袁秀阳张文明
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD
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