STMicroelectronics and trinamiX have developed an in-display facial recognition system for mobile devices. The companies say that their reference design supports face authentication from behind an OLED screen, and that it offers a level of security commensurate with the requirements of mobile payments.
The companies describe their reference design as a “full system implementation that combines trinamiX’s algorithms with a camera module comprising STMicroelectronics’ global-shutter image sensor with near-infrared sensitivity. It also includes an illumination system.
TrinamiX’s Face Authentication algorithm received important certifications last year, including Android Biometric Class 3, the IFAA Biometric Face Security Test Requirement, and FIDO Level C.
STMicroelectronics and trinamiX say that their solution is able to differentiate between human skin and other materials, enabling effective liveness detection.
With face-based authentication now a standard feature on a wide range of smartphones, and in-display fingerprint sensor being embraced by some as an innovative differentiating feature, there has been growing interest in technology that can bring a face-scanning camera under a smartphone’s display. Like an in-display fingerprint sensor, an in-display camera could free up space on the front face of a phone, allowing for a larger screen.
Some smartphone brands, like Axon and OnePlus, have already launched phones with in-display cameras, and Apple has at the very least been exploring the technology, if intellectual property filings are any indication.
STMicroelectronics and trinamiX will offer a live demonstration of their solution at IFA 2022, which is slated to run from September 2 to 6 in Berlin.