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A method for automatic focusing after optical filters are switched under the motion state of a camera

A camera motion and auto-focusing technology, applied in image communication, color TV parts, TV system parts and other directions, can solve the problems of different transmittance, deviation of lens imaging position, etc., to achieve the effect of improving clarity

Inactive Publication Date: 2019-05-31
TIANJIN TIANDI WEIYE INFORMATION SYST INTEGRATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention aims to propose a method for automatic focusing after switching the optical filter when the camera is in motion, so as to solve the problem that the difference in transmittance of the ordinary optical filter before and after switching will cause deviations in the imaging position of the lens

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  • A method for automatic focusing after optical filters are switched under the motion state of a camera
  • A method for automatic focusing after optical filters are switched under the motion state of a camera

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Embodiment Construction

[0019] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0020] In describing the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood a...

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Abstract

The invention provides a method for automatically focusing after switching an optical filter in a motion state of a camera, which comprises the following steps of: S1, judging the current state of thecamera, and adopting automatic focusing in the motion state if the camera is in the motion state; S2, calculating a target focusing value; and S3, according to the target focusing value, driving thefocusing camera to reach a designated position. The method for automatically focusing after switching the optical filters under the motion state of the camera can effectively solve the problem that the camera is in a linear scanning state for a long time; in most of cruise modes such as spiral scanning, the day and night modes are switched in the cruise process, under the condition that equipmentcannot be stopped to complete focusing after light filtering and submersible switching, the day and night confocal method is guaranteed, and the method can effectively improve the definition of nightimages of a camera cruise for a long time.

Description

technical field [0001] The invention belongs to the technical field of monitoring equipment, and in particular relates to a method for automatically focusing after switching an optical filter when a camera is in motion. Background technique [0002] Some cameras need to perform cruising tasks for a long time without interruption. During this period, due to changes in ambient brightness, the filter will be switched. Due to the difference in transmittance before and after switching of ordinary filters, the imaging position of the lens will deviate, so it needs to be adjusted. Focus to re-sharp the picture. Contents of the invention [0003] In view of this, the present invention aims to propose an automatic focusing method after switching the optical filter when the camera is in motion, so as to solve the situation that the difference in transmittance of the common optical filter before and after switching will cause deviation of the imaging position of the lens. [0004] I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232
Inventor 刘琰高旭麟薛超李刚
Owner TIANJIN TIANDI WEIYE INFORMATION SYST INTEGRATION CO LTD