New reconstruction method improves facial recognition for forensic purposes

January 21, 2016
New reconstruction method improves facial recognition for forensic purposes

Researchers of the Services, Cybersecurity and Safety department of the University of Twente have invented an improved reconstruction method for facial recognition based on camera images. This method yields a better score in ninety percent of the examined cases, and helps forensic investigators with their daily work. The researchers recently published their results in the academic journal IET Biometrics.

Facial recognition in a context is a complex discipline. The reconstruction of faces on the basis of a facial model has certain limitations. To be able to use verification and identification based on forensic investigation in the courtroom, the bar for reliability and accuracy must be set very high. The daily practice of forensic investigation will benefit from the new methodology - it is estimated that the improved reconstructions will provide added value in 60 percent of the cases.

Reflection model

The researchers designed a new 3D facial reconstruction based on the Lambert reflection model for estimating the reflection and using that estimate to create a 3D facial reconstruction. Unlike other 3D reconstruction methods, the new method does not use prior knowledge of in the form of a facial model and is therefore not "biased", which is of vital importance to forensic facial comparisons. With this method, a 3D facial model and a frontal profile are reconstructed on the basis of images of faces in different poses.

The Services, Cybersecurity and Safety department, part of the Faculty of Electrical Engineering, Mathematics and Computer Science (EEMCS), is developing ICT-related methods and technologies for the purpose of solving safety problems. In cooperation with the Dutch Forensic Institute (NFI), the Services, Cybersecurity and Safety department conducts research into improving .

Explore further: Researchers develop 3-D reconstruction software

More information: Luuk Spreeuwers et al. Face reconstruction from image sequences for forensic face comparison, IET Biometrics (2015). DOI: 10.1049/iet-bmt.2015.0036

Related Stories

Researchers develop 3-D reconstruction software

January 5, 2015

Researchers have designed a program to generate 3D imagery from the projection and digitization of binary data that allows reconstruction of various objects in order to reproduce parts of classic automobiles, prehispanic ...

Forensic examiners pass the face matching test

September 1, 2015

The first study to test the skills of FBI agents and other law enforcers who have been trained in facial recognition has provided a reassuring result - they perform better than the average person or even computers on this ...

Subliminal effect of facial color on fearful faces

October 22, 2015

Facial color is suggestive of emotional states, as in the phrases: "flushed with anger" and "pale with fear." Although some behavioral studies have investigated the effects of facial color on expression, there is limited ...

Recommended for you

Inferring urban travel patterns from cellphone data

August 29, 2016

In making decisions about infrastructure development and resource allocation, city planners rely on models of how people move through their cities, on foot, in cars, and on public transportation. Those models are largely ...

How machine learning can help with voice disorders

August 29, 2016

There's no human instinct more basic than speech, and yet, for many people, talking can be taxing. 1 in 14 working-age Americans suffer from voice disorders that are often associated with abnormal vocal behaviors - some of ...

Auto, aerospace industries warm to 3D printing

August 25, 2016

New 3D printing technology unveiled this week sharply increases the size of objects that can be produced, offering new possibilities to remake manufacturing in the auto, aerospace and other major industries.


Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.