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

Automatic focusing method based on bifocal photoelectric pod

A photoelectric pod and auto-focus technology, which is applied in the field of cameras, can solve the problems of insensitivity to light changes, inability to make timely and effective changes, and large impact of light

Pending Publication Date: 2019-12-03
北京首贝科技发展有限公司
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantages of the existing method are: 1. It is greatly affected by the light; 2. It is not sensitive to the change of the light, and cannot make timely and effective changes; 3. Due to the rotation characteristics of the motor itself and the delay of signal transmission when focusing, it causes a lot of problems. Difficult to adjust to optimal clarity

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
  • Automatic focusing method based on bifocal photoelectric pod
  • Automatic focusing method based on bifocal photoelectric pod
  • Automatic focusing method based on bifocal photoelectric pod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] figure 1 It is the overall flowchart of the autofocus of the present invention; figure 2 It is the basic flowchart of the coarse focus of the camera of the present invention; image 3 It is the basic principle diagram of binocular ranging in the present invention.

[0031] As shown in the figure, a kind of autofocus method based on dual-light photoelectric pod in this embodiment, the hardware system for realizing the method includes:

[0032] Infrared zoom camera: a high-resolution industrial camera with infrared images, the focal length can be zoomed according to instructions, and is used to achieve day and night target locking and tracking.

[0033] Visible light automatic zoom camera: high-resolution industrial camera that forms images in the visible light band. The focal length can be zoomed according to instructions, which is used to achieve target locking and tracking during the day, and to expand the observation angle of the infrared camera.

[0034] Central ...

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 relates to the field of cameras, in particular to an auto-focusing method based on a bifocal photoelectric pod. Based on binocular principle, under different distances, a camera is tested, different focal lengths of the camera at different distances are described; a precise focusing time base is established according to the actual distance, the speed from initialization to adjustmentto the stage and the corresponding time, the corresponding focusing operation is carried out according to the function curve by comparing the actual distance with the corresponding relation in the precise focusing base, automatic focusing can be achieved, and errors caused by manual focusing are reduced.

Description

technical field [0001] The invention relates to the technical field of cameras, in particular to an automatic focusing method based on a dual-light photoelectric pod. Background technique [0002] Existing method 1: includes the following steps: initializing the search boundary L=InitL, R=InitR, and obtaining the resolution f(L) and f(R) of the search boundary at the same time, wherein, f(x) is the distance from the search to position x Resolution value; use the golden section method to set the focus point x1, x2, and obtain f(x1), f(x2); determine whether f(x1) is greater than f(x2); when f(x1)<f(x2) When f(x1)>f(x2), move the boundary along the direction close to point R; when f(x1)>f(x2), move the boundary close to point L; when L≠InitL and R≠InitR hold, obtain the focus point L, x1, x2 and R, and the resolution of each focus point; according to the focus point L, x1, x2 and R, and the resolution of each focus point, estimate the current value of the best focus ...

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): H04N5/232
CPCH04N23/671H04N23/67
Inventor 姚志江
Owner 北京首贝科技发展有限公司
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