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

Method of structured light in 3-D real time videography

A technology of structured light and three-dimensional image, applied in optics, photography, using optical devices, etc., to achieve the effect of eliminating motion blur, good acquisition effect, and good quality

Inactive Publication Date: 2009-11-04
SOUTHEAST UNIV
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a structured light method in three-dimensional real-time videography in order to solve the problems of acquisition effect, scope of application and implementation complexity of structured light technology in the existing three-dimensional real-time videography system

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 of structured light in 3-D real time videography
  • Method of structured light in 3-D real time videography

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] like figure 1 As shown, the structured light method in three-dimensional real-time imaging of the present invention includes the following steps:

[0016] (1) Determine the color fringe period of the IP and DP mode structured light in the camera device, and form the corresponding IP mode and DP mode structured light pattern, wherein: the IP mode structured light is the initial mode structured light, and the DP mode structured light is the detail Mode structured light, the same below;

[0017] (2) Determine the projection frequency;

[0018] (3) Set the IP and DP mode structured light projection switching period N+1 according to the surface change speed and moving speed of the collected object. The faster the change or moving speed is, the larger the value of N+1 can be, and vice versa. Determine the IP and DP mode structured light projection sequences, where: N is a natural number;

[0019] For example: if the projection frequency is 25 frames / second, then when N+1=5...

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 of structured light in 3-D real time videography and belongs to the field of 3-D image information acquisition. The method comprises the following steps: firstly, determining a color stripe cycle of initial-prototype (IP) and detailed-prototype (DP) structured light, forming a corresponding IP and DP structured light pattern, determining a projection frequency, and setting a projection switching period N+1 of the double-prototype(IP and DP) structured light according to the surface change and moving speed of an acquisition object and determining a projection sequence; and secondly, according to the projection switching period, acquiring an image of a projection target once at each time of the projection of the structured light, using the data acquired in each IP as 3-D image reference information for calculating the corresponding frames of following DPs, and using data acquired in each DP for calculating and outputting a frame of 3-D image, wherein the switching period can be reset according to requirements during acquisition. The method of the invention has the advantages of good acquisition effect, no influence from the surface shape of an acquisition target, and good adaptability to the quick movement and change.

Description

technical field [0001] The invention relates to a structured light method based on dual-mode switching in three-dimensional real-time imaging, and belongs to the field of three-dimensional image information collection. Background technique [0002] Existing structured light methods for 3D real-time imaging can generally be classified into two categories according to the number of structured light patterns to be projected per frame of 3D image: a single projection acquisition method and a multiple projection acquisition method. The single projection acquisition method, that is, a frame of 3D image only needs one structured light projection and image acquisition, and does not require a higher projection frequency and image acquisition frequency than the 3D image output frequency, which can reduce the implementation complexity and cost of the system, and can By increasing the shutter speed of the camera, three-dimensional instant imaging of fast-changing or fast-moving targets ...

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): G03B15/16G01B11/25
Inventor 衡伟
Owner SOUTHEAST UNIV
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