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A focusing method, device, computer-readable storage medium, and projection device

A focusing method and focal length technology, which are applied to TVs, color TV components, and components of TV systems, etc., can solve the problems of low accuracy and poor focusing effect, and achieve the effect of improving focusing accuracy.

Active Publication Date: 2021-03-12
GOERTEK INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the focusing method of the above-mentioned related art has low precision and poor focusing effect

Method used

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  • A focusing method, device, computer-readable storage medium, and projection device
  • A focusing method, device, computer-readable storage medium, and projection device
  • A focusing method, device, computer-readable storage medium, and projection device

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Embodiment Construction

[0053] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0054] see below figure 1 , figure 1 It is a flow chart of a focusing method provided in the embodiment of the present application, and the specific steps may include:

[0055] S101: Determine an optimal focal length interval within the focal length adjustment range;

[0056]Wherein, the focusing method provided in this embodiment can be applied to...

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Abstract

The present application discloses a focusing method, which includes determining the optimal focal length interval within the focal length adjustment range; determining the scoring gradient information of the optimal focal length interval, and determining the optimal focal length value according to the scoring gradient information; wherein , the vector score gradient corresponding to the preferred focal length value is within a preset gradient interval; performing a focusing operation according to the preferred focal length value can improve focusing accuracy in the present application. The application also discloses a focusing device, a computer-readable storage medium and a projection device, which have the above beneficial effects.

Description

technical field [0001] The invention relates to the technical field of machine vision, in particular to a focusing method and device, a computer-readable storage medium and a projection device. Background technique [0002] With the rapid development of image processing technology and computer technology, intelligent focusing has entered the digital era based on image analysis and computer processing of image data, and has begun to be applied in various fields, playing an increasingly important role. [0003] In related technologies, projection products mainly realize auto-focus through infrared ranging method, that is, emit infrared light in a specific direction and receive return light to measure distance, and calculate object distance through this distance to realize auto-focus. However, the focusing method of the above-mentioned related art has low precision and poor focusing effect. [0004] Therefore, how to improve the focusing precision is a technical problem that t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232
CPCH04N23/67
Inventor 李晶晶
Owner GOERTEK INC