Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Industrial camera adaptive automatic focusing method and industrial camera adaptive automatic focusing device

An industrial camera and auto-focus technology, applied in focusing devices, cameras, installations, etc., can solve problems such as complex focusing process, low detection accuracy, and poor adaptability of LCD screens

Active Publication Date: 2018-10-09
BEIJING LUSTER LIGHTTECH
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides an adaptive auto-focus method for industrial cameras to solve the problem of poor adaptability of existing detection equipment to LCD screens, low detection accuracy, sensitivity to light conditions, complex focusing process, slow focusing speed, and reduced equipment automation. level, reduce the equipment beat and other issues

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Industrial camera adaptive automatic focusing method and industrial camera adaptive automatic focusing device
  • Industrial camera adaptive automatic focusing method and industrial camera adaptive automatic focusing device
  • Industrial camera adaptive automatic focusing method and industrial camera adaptive automatic focusing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] Please see attached figure 1 , which shows the process steps of an adaptive autofocus method for an industrial camera.

[0057] A method for adaptive autofocus of an industrial camera, comprising the following steps:

[0058] Step S1, keep the moving axis of the industrial camera unchanged, move the industrial camera freely, and collect images of the reference screen multiple times, wherein the reference screen is set on the same axis as the industrial camera.

[0059] The reference screen, that is, the reference LCD screen, is set on the same axis as the industrial camera. The reference screen is set at the position of the display screen and remains still. On this axis, the industrial camera is moved back and forth. After each movement, an image of the reference screen is collected .

[0060] Step S2, calculating the sharpness value of each reference screen image, and selecting the image position with the largest sharpness value.

[0061] Each LCD screen has an imag...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an industrial camera adaptive automatic focusing method and an industrial camera adaptive automatic focusing device, which relate to the technical field of automatic detection.The method comprises the following steps: keeping a moving axis of an industrial camera constant, freely moving the industrial camera, acquiring benchmark screen images for many times; calculating a definition value of each benchmark screen image, screening out a benchmark screen image position with highest definition value, taking the benchmark screen image position as a focusing layer beta, extracting information about the benchmark screen image at the focusing layer beta, storing the information as template information; creating index table information based on the template information; moving the industrial camera, acquiring a to-be-detected screen image, and performing comparing and judging for the to-be-detected screen image and the index table information; and performing adaptive automatic focusing according to a judging result. The method is simple and fast in focusing, has high robustness for being suitable for variation of outside lighting conditions, is suitable for different types of LCD screens and the screens of different working procedure stages, has high detection precision, can improve automation degree of detection equipment and can improve working efficiency.

Description

technical field [0001] The present application relates to the technical field of automatic detection, in particular to an adaptive auto-focus method and device for an industrial camera. Background technique [0002] With the continuous increase of functions and types of electronic products, the demand for LCD screens (Liquid Crystal Displays, liquid crystal displays) is also increasing, and the requirements for LCD screens are also getting higher and higher, which requires strict testing of LCD screens. To ensure that the screen function meets the usage requirements. At present, all kinds of detection equipment use industrial cameras for auxiliary detection. Industrial cameras can improve the automation of detection equipment. The design of existing industrial cameras is generally based on the search algorithm of the climbing method. The information includes the location of the starting point, the heuristic function, so that the search continues to advance, and finally find...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G03B13/36G02B7/36
CPCG02B7/36G03B13/36
Inventor 王太兴姚毅
Owner BEIJING LUSTER LIGHTTECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com