Active polarization imaging target discrimination method based on polarization Fresnel reflectivity

A technology of Fresnel reflection and active polarization, which is applied in the direction of polarization influence characteristics, can solve problems such as instability, and achieve the effect of simple implementation, improved robustness and universality

Inactive Publication Date: 2017-03-08
NANJING UNIV OF SCI & TECH
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the instability of stray light in the external environment and many other interferences, passive polarization imaging is limited in practical applications.

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
  • Active polarization imaging target discrimination method based on polarization Fresnel reflectivity
  • Active polarization imaging target discrimination method based on polarization Fresnel reflectivity
  • Active polarization imaging target discrimination method based on polarization Fresnel reflectivity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] It is easy to understand that, according to the technical solution of the present invention, without changing the essence of the present invention, those skilled in the art can imagine a variety of methods of active polarization imaging target discrimination based on polarization Fresnel reflectance in the present invention. implementation. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the entirety of the present invention or as a limitation or limitation on the technical solution of the present invention.

[0024] Such as figure 2 Shown, the present invention comprises the following steps:

[0025] Step 1. Construct the optical path so that the incident light generated by the light source is reflected by the surface of the object, and then passes through the polarizer to reach the detector. The detector detects the reflected light intensity, ...

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 active polarization imaging target discrimination method based on polarization Fresnel reflectivity. According to the method, the zenith angles of the incidence direction and the detection direction are changed to obtain multiple theoretical and real polarization Fresnel reflectivities; related optical constants of a target object are recovered and obtained from the theoretical and real polarization Fresnel reflectivities; and then based on the optical constants, different materials can be distinguished to discriminate the target. The provided method can conveniently and effectively discriminate a target, and at the same time, robustness and universality of polarization in discrimination engineering application are improved.

Description

technical field [0001] The invention belongs to the technical field of target imaging, and relates to an active polarization imaging target identification method, in particular to an active polarization imaging target identification method based on polarization Fresnel reflectance. Background technique [0002] For the imaging target recognition system, the polarization information, as the new one-dimensional information of the target, is a basic optical characteristic of the target surface. The polarization characteristics of the target are related to the material of the target, the shape of the target surface, and the roughness of the target surface. . Due to the complexity of the mechanism of the polarization characteristics itself, as well as the high requirements for detection and identification devices and systems, especially on the rough target surface, the modeling of the polarization characteristics of the object is a difficult problem. The more popular distributio...

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): G01N21/21
Inventor 潘佳惠陈钱吕芳俞晓东
Owner NANJING UNIV OF SCI & TECH
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