A kind of stage lighting autofocus system and method based on image procossing

A kind of stage lighting autofocus system and method based on image procossing

  • CN 107,743,194 A
  • Filed: 09/30/2017
  • Published: 02/27/2018
  • Est. Priority Date: 09/30/2017
  • Status: Active Grant
First Claim
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1. a kind of stage lighting autofocus system based on image procossing, it is characterised in that including stage lighting, video camera and controlModule, the signal adapter for transmitting simultaneously conversion signal, the video camera are connected between the stage lighting and control moduleThe image projected for gathering stage lighting in real time, and image is sent to control module, the control module is used for will figureAs changing to frequency domain from transform of spatial domain, and the average gray value of image in frequency domain is obtained, and by automatically adjusting focusing passagePush rod value change the average gray value of image, compared with the average gray value of upper Swing frequency area image, obtain mostBig average gray value, passage push rod value of being focused according to corresponding to being worth to maximum average gray, and set and waved with this push rod valueThe focusing passage of desk lamp, focusing passage numerical value when as image is most clear, the numerical value for passage of focusing are passed by signal adapterStage lighting is given, stage lighting adjusts the definition of stage lighting according to focusing channel signal, so as to reach the purpose of auto-focusing.

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