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

Crime scene fingerprint ridgeline leaving region frequency dynamic reconstruction method

A technology of lines and fingerprints, applied in the field of biometric identification, can solve problems such as no statistical data support

Active Publication Date: 2018-04-13
张威 +1
View PDF9 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the forensic science industry needs to find a dynamic reconstruction technology for the frequency of leftover areas of fingerprint lines at the crime scene. The calculation of the contribution of the level of "bit-line image quality" to the overall quality rating of ten fingerprints provides a real-time and accurate weighted parameter model, thereby solving the problem of the existing fingerprint system fingerprint image quality evaluation algorithm "the quality of each area's line collection quality affects each finger fingerprint image. "Quality rating weighting parameters" and "weighting parameters of each finger quality weight to ten-fingerprint overall quality rating" are not supported by statistical data

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
  • Crime scene fingerprint ridgeline leaving region frequency dynamic reconstruction method
  • Crime scene fingerprint ridgeline leaving region frequency dynamic reconstruction method
  • Crime scene fingerprint ridgeline leaving region frequency dynamic reconstruction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0093] The present invention will be further described in detail below in conjunction with the examples.

[0094] Such as figure 1As shown, the method includes the following steps:

[0095] Step S01: Big data sampling.

[0096] This step requires a dynamic big data sampling of the information stored in the existing AFIS database of the forensic science department. The data to be extracted mainly includes:

[0097] 1. Fingerprint comparison with relational data. Bi-Chinese relationship data is gradually accumulated by fingerprint system users (generally the forensic science department) in the actual comparison work. It records a certain on-site fingerprint extracted from a crime scene in a case, and through fingerprint system comparison and multiple groups of fingerprint experts (each A team of at least two people) independently carry out manual identification to prove that there is a data record of the "same relationship" between the on-site fingerprint physical evidence a...

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 crime scene fingerprint ridgeline leaving region frequency dynamic reconstruction method. The method comprises the following steps of performing identification and data extraction on a peripheral contour line of a scene fingerprint ridgeline coverage region; reconstructing a crime scene fingerprint ridgeline leaving region in a compared seal fingerprint; and performing dynamic reconstruction of a crime scene fingerprint ridgeline leaving region frequency. The method is mainly used for a super-large-scale fingerprint system of a multi-comparison algorithm framework; the image quality level of fingerprint system database establishment and the case-solving efficiency of the fingerprint system can be effectively improved; and the method is of outstanding significancein the aspects of "comparison and missing check risk analysis of the fingerprint system", "locking of a missing check target range", "feasibility assessment of actual application of various planar seal fingerprint image data to the field of forensic science", and the like.

Description

technical field [0001] The present invention proposes a dynamic reconstruction algorithm model based on "big data mining" and "pattern recognition" technology of "frequency of leftover areas of fingerprints at the crime scene", which belongs to the field of biological feature recognition. Background technique [0002] Automatic Fingerprint Identification System (AFIS) is the most widely used individual feature identification system in the world today. It is not only the first choice for the police in various countries to identify the identity of the perpetrators and victims of major crimes, but also the police's identification of objects of investigation, unknown corpses, and practitioners in special industries. It is the preferred method for quickly and accurately identifying the identities of perpetrators, persons with limited capacity for conduct, lost persons, fugitive suspects, key management objects, etc. The case-handling agency said. [0003] The quality of tenfinge...

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): G06K9/00G06K9/46G06K9/34G06K9/44G06K9/03
CPCG06V40/13G06V40/1347G06V10/993G06V10/34G06V10/443G06V10/267
Inventor 张威王威
Owner 张威
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