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

Method and system for correcting errors of camera lens intrinsic parameters

A camera and internal parameter technology, applied in image data processing, image analysis, instruments, etc., can solve problems such as unsatisfactory tracking effect and errors

Inactive Publication Date: 2013-03-27
CHINA DIGITAL VIDEO BEIJING
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When measuring the internal parameters of the camera lens, due to certain errors, it is impossible to ensure that the internal parameters measured at each zoom value are accurate, so the tracking may be caused by the error of the internal parameters during tracking. Unsatisfactory effect

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
  • Method and system for correcting errors of camera lens intrinsic parameters
  • Method and system for correcting errors of camera lens intrinsic parameters
  • Method and system for correcting errors of camera lens intrinsic parameters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The embodiment of the present invention provides a method for correcting the parameter error in the camera lens, such as figure 1 shown, including:

[0027] Step 101, receiving the zoom pulse of the camera lens;

[0028] Step 102, modify the zoom value of the zoom pulse according to the preset zoom factor s.

[0029] The zoom pulse is an interval, including multiple zoom values, and each zoom value corresponds to a different internal parameter matrix. The internal parameter matrix of the camera is K:

[0030] K = f x 0 u 0 0 f y v 0 ...

Embodiment 2

[0051] The embodiment of the present invention provides a system for correcting the parameter error in the camera lens, such as Figure 5 shown, including:

[0052] The receiving module 501 is used to receive the zoom pulse of the camera lens;

[0053] The processing module 502 is configured to correct the zoom value of the zoom pulse according to the preset zoom factor s, and the internal parameter matrix corresponding to the corrected zoom value of the zoom pulse is K s :

[0054] K s = sf x 0 u 0 0 sf y v 0 ...

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 discloses a method and a system for correcting errors of camera lens intrinsic parameters, relates to the technical field of photography and solves the problem that in prior photography, when focusing is performed according to preset zooming pulses, a virtual object drifts with rotation of a camera due to errors of the intrinsic parameters. According to the scheme of the embodiment, the method includes: receiving zooming pulses of a camera lens; and correcting zooming values of the zooming pulses according to a preset zooming factor s. The method and system are applicable to photographic equipment and the like.

Description

technical field [0001] The present invention relates to the technical field of photography and videography, in particular to a method and system for correcting parameter errors within a camera lens. Background technique [0002] When measuring the internal parameters of the camera lens, due to certain errors, it is impossible to ensure that the internal parameters measured at each zoom value are accurate, so the tracking may be caused by the error of the internal parameters during tracking. The effect is not ideal. Specifically, when shooting, due to the existence of internal parameter errors, when focusing according to the preset zoom pulse, if the camera is rotated, the virtual object will drift. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a method and system for correcting the internal parameters of the camera lens, which can eliminate the error caused by incorrect internal parameter...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
Inventor 谢宏
Owner CHINA DIGITAL VIDEO BEIJING
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