Method for dynamically adjusting frame rate to optimize automatic focusing

An automatic focus and dynamic adjustment technology, applied to color TV parts, TV system parts, TVs, etc., can solve problems such as inability to achieve focus

CN113709361APending Publication Date: 2021-11-26深圳市睿梁科技有限公司

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Patent Information

Authority / Receiving Office: CN · China
Current Assignee / Owner: 深圳市睿梁科技有限公司
Publication Date: 2021-11-26

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Abstract

The invention discloses a method for dynamically adjusting a frame rate to optimize automatic focusing. The method comprises the following steps: decomposing a focusing window into a plurality of focusing sub-windows, and simultaneously acquiring a frame rate parameter and an exposure parameter of each focusing sub-window; performing credibility weighted calculation and adjustment on the frame rate parameter and the exposure parameter of each focusing sub-window to obtain an automatic focusing adjustment parameter set; respectively and dynamically adjusting the current frame rate parameter and the exposure parameter based on the light value of the current frame; and carrying out frame synchronous motor driving based on the acquired multiple operation parameters, obtaining the focusing statistical data of the current frame, and completing automatic focusing based on the calculated focusing position until all the frames are processed, so that accurate automatic focusing can be carried out according to the light of the current environment.

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Description

technical field

[0001] The invention relates to the technical field of image algorithm processing, in particular to a method for dynamically adjusting frame rate and optimizing autofocus. Background technique

[0002] The goal of AF (AutoFocus) autofocus technology is to be fast and accurate. However, the current general-purpose ContrastDetectionAF autofocus technology is generally based on a fixed Sensor frame rate to obtain and analyze AF data to achieve autofocus. In such an environment, it is impossible to break through the barriers of the existing technology to achieve autofocus more quickly, and in a dimly lit environment, due to the influence of factors such as noise, it is impossible to achieve more accurate focusing. Accurate autofocus. Contents of the invention

[0003] The purpose of the present invention is to provide a method for dynamically adjusting the frame rate to optimize auto-focus, which can perform accurate auto-focus according to the light in the cu...

Claims

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