An imaging method based on a single-photon three-dimensional imaging system

An imaging method and three-dimensional imaging technology, applied in the field of photoelectric detection, can solve the problems of poor imaging effect of a single-photon three-dimensional imaging system, and achieve the effects of suppressing backscattered photons, compact structure and high reliability

Active Publication Date: 2021-01-15
武汉华中旷腾光学科技有限公司
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problems existing in the prior art, the present invention provides a single-photon three-dimensional imaging system and its imaging method, which solves the problem of poor imaging effect of the single-photon three-dimensional imaging system in the prior art

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
  • An imaging method based on a single-photon three-dimensional imaging system
  • An imaging method based on a single-photon three-dimensional imaging system
  • An imaging method based on a single-photon three-dimensional imaging system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Embodiment 1 provided by the present invention is an embodiment of a single-photon three-dimensional imaging system provided by the present invention, such as figure 1 Shown is a schematic structural view of an embodiment of a single-photon three-dimensional imaging system provided by the present invention, consisting of figure 1 It can be seen that the imaging system includes: a transceiver common-aperture optical path, a laser emitting unit, a single-photon detection unit, a scanning galvanometer unit and a data processing system 16 .

[0064] The transmitting and receiving common-aperture optical path includes a perforated mirror 03, and the laser emitted by the laser emitting unit enters the transmitting and receiving common-aperture optical path through the through hole of the perforated mirror 03; the echo light signal enters the single-photon detection unit after being reflected by the reflecting surface of the perforated mirror 03.

[0065] The scanning galvanom...

Embodiment 2

[0092] Embodiment 2 provided by the present invention is an embodiment of a single-photon three-dimensional imaging method provided by the present invention. The imaging method is based on an embodiment of an echo signal single-photon three-dimensional imaging system provided by the present invention, such as figure 2 Shown is the flow chart of the embodiment of a kind of single-photon three-dimensional imaging method provided by the present invention, by figure 2 It can be seen that the imaging method includes: step 1, when the laser emitting unit emits pulsed laser light, it sends a trigger signal to the single photon detecting unit.

[0093] Step 2, the single photon detection unit marks the time t when the first pulse signal is received ij , and record to t ij The number of pulsed light emitted by the laser up to time n ij .

[0094] Wherein, (i, j) represents the pixel point position under the control of the scanning galvanometer unit.

[0095] Step 3: When the sing...

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 a single-photon three-dimensional imaging system and an imaging method thereof. The imaging system comprises a transceiving common-aperture light path, a laser emission unit,a single-photon detection unit, a scanning galvanometer unit and a data processing system, the transceiving common-aperture light path comprises a perforated reflector, and laser emitted by the laseremitting unit enters the transceiving common-aperture light path through a through hole of the perforated reflector; an echo light signal is reflected by the reflecting surface of the perforated reflector and then enters the single-photon detection unit; the scanning galvanometer unit is arranged on a transceiving common-aperture light path and controls and adjusts the laser transmitting directionand the echo light signal receiving direction; and the data processing system performs three-dimensional image reconstruction according to the data of the emergent laser and the echo light signal. Alaser transceiving common-aperture scheme is adopted, the structure is compact, and the reliability is high.

Description

technical field [0001] The invention relates to the technical field of photoelectric detection, in particular to a single-photon three-dimensional imaging system and an imaging method thereof. Background technique [0002] LiDAR technology has a very wide range of applications, such as satellite remote sensing and airborne surveillance. With the continuous growth of demand, the application platform has put forward higher requirements for the lidar system, which requires the imaging system to be smaller in size and weight, lower in power consumption, longer in range, and capable of ultra-long-distance high-resolution three-dimensional imaging. With the development of single-photon detection technology, TCSPC (Time-correlated single-photon counting, time-correlated single-photon counting) lidar based on single-photon detection can meet these stringent requirements. In particular, single-photon detectors can provide single-photon sensitivity and ultrahigh temporal resolution, ...

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 Patents(China)
IPC IPC(8): G01J11/00G01S17/894
CPCG01J11/00G01S17/89
Inventor 余徽杜卫超王晨晟曾宪江
Owner 武汉华中旷腾光学科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap