When it comes to a criminal investigation, biometrics have long been used to identify and track criminals. This includes methods like identifying through fingerprints, DNA, and even voices. Comparatively, face or facial recognition is a new technology that is now being used to identify criminal elements.
Despite the privacy concerns, the installation of high-resolution CCTV or surveillance devices in public areas has contributed to the adoption of this technology for law enforcement. The recent statistics for facial recognition are also encouraging.
In recent years, law enforcement agencies have utilized facial recognition to detect or prevent crimes such as:
And so on.
How does facial recognition work in criminal investigations? Let us explore further in the following sections.
When it is a matter of criminal identification, facial recognition tools work towards providing the image of a suspect or potential criminal to the security experts. For the best results, face recognition tools remove unwanted elements from the image captured through CCTV cameras – such as background noise or other images captured in the same frame.
The facial recognition system works through the following 2-step process:
This is where the system determines if the captured image is indeed that of a "live" human face – instead of a face mask or a photograph. This step also comprises separating the face image from its background or an unnecessary portion of the captured images.
Once the correct face is detected, it goes through the step of facial recognition. During this step, the facial recognition tool classifies the captured face image based on typical characteristics like the distance between the eyes, the shape of the chin, and the length of the jaw or nose. The system then runs a search through its stored criminal database and uses its defined algorithm to find a perfect match – and display the result.
For accurate face recognition, the database must contain multiple images of the same person – along with distinguishable features – that can be useful during the matching process.
What are the advantages of facial recognition in crime detection as compared to other biometrics? Let us check that out next.
Facial recognition has its share of pros and cons when it is deployed for crime detection and prevention. Let us start with the following pros:
Here are some of the few cons of facial recognition in crime detection:
Notwithstanding its pros and cons, facial recognition has been used successfully in recent criminal cases around the globe:
As outlined in this article, facial recognition technology can play an active role in detecting and preventing major crimes. Having said that, to prevent any misidentification of criminals, law enforcement agencies must use face recognition tools with near 100% accuracy. High-level security of criminal databases is also a must to prevent any data breaches or leaks.
With advanced features like real-time face recognition and enterprise-grade security, Airface offers a range of facial recognition tools that can be used in protecting individuals and business establishments from criminals. Do visit our website for more information – and leave behind your contact details.