Focusing method, device and equipment and computer readable storage medium

A focusing method and focus technology, applied in the field of optical photography

Active Publication Date: 2020-05-08
VALUEHD CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because there is relatively little information available, only the fv value, and the fv value is easily affected by noise, brightness, etc., and for different platforms or different statistical intervals, the fv value will also vary, so it is difficult to find a suitable one. Analyze the accurate focus area in a way with better matching and portability

Method used

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  • Focusing method, device and equipment and computer readable storage medium
  • Focusing method, device and equipment and computer readable storage medium
  • Focusing method, device and equipment and computer readable storage medium

Examples

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Embodiment Construction

[0057] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0058] like figure 1 as shown, figure 1It is a schematic diagram of the device structure of the hardware operating environment involved in the solution of the embodiment of the present invention.

[0059] The device in this embodiment of the present invention may be a PC or a server device.

[0060] like figure 1 As shown, the device may include: a processor 1001 , such as a CPU, a network interface 1004 , a user interface 1003 , a memory 1005 , and a communication bus 1002 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. Optionally, the n...

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PUM

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Abstract

The invention discloses a focusing method, which comprises the steps of if it is detected that a scene picture is changed, determining a change interval corresponding to the scene picture; calculatinga central distance between the change interval and the scene picture on a preset time axis, and determining a change trend of the change interval based on the central distance; and determining a corresponding focusing strategy based on the change interval and the change trend, and moving a focus for focusing based on the focusing strategy. The invention further discloses a focusing device and equipment and a computer readable storage medium. According to the invention, after the change of the scene picture is detected, the focusing strategy is determined by determining the change interval andthe change trend of the change interval, and the rapid automatic focusing is realized by combining an evaluation value.

Description

technical field [0001] The invention relates to the technical field of optical imaging, in particular to a focusing method, device, equipment and computer-readable storage medium. Background technique [0002] There are two ways for a video camera with a pan / tilt to start focusing: use the remote control to mobilize the pan / tilt to start focusing, or to start focusing when a scene change is detected. The gimbal starts focusing generally with the center as the focus area. The case of refocusing caused by scene changes is more complicated. If the wrong focus area is selected, or an inappropriate focus strategy is adopted, such as wrong focus (focus) movement direction and wrong step size, etc., it will cause excessive blurring, slow focus process, or even misfocus and other problems in the focus process. [0003] Especially in the case of focusing with only fv value (focus value, evaluation value, value used to evaluate image clarity), generally the whole screen will be divi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232G03B13/36G03B30/00
CPCG03B13/36H04N23/67H04N23/64
Inventor 申林唐春华
Owner VALUEHD CORP
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