Ultrasonic Fingerprint Imaging Technology
Acoustic holography achievements by PBP OPTEL for security biometrics
Ultrasonic fingerprint camera technology developed by PBP OPTEL is one of the company’s key achievements, rooted in Wiesław Bicz’s invention (1985). Unlike optical or capacitive readers, this solution relies on acoustic holography and enables robust fingerprint imaging in demanding conditions.
Operating Principle (Acoustic Holography)
The system uses shear waves (SH) propagating parallel to the sensor surface (glass or metal). The ridge pattern scatters waves; signals are reconstructed by phase processing to produce high-resolution images (up to ~1000 dpi).
Sub-surface Imaging (Dermis)
Ultrasound can capture structures below the epidermis, enabling scanning even with damaged skin, moisture or contamination—scenarios where optical methods often fail.
Inherent Liveness Detection
Human tissue produces a characteristic acoustic response (impedance). This makes spoofing significantly harder compared to surface-only imaging methods.
Environmental Resistance
Because waves propagate inside the solid plate, surface contaminants (water, oil) have limited impact. Fixed scratches can be compensated in software.
Evolution & High-Security Applications
From early prototypes to mobile devices developed under European projects, the technology supports demanding security scenarios and modern identity verification workflows.
Biometrics Resources
European Framework Projects
INGRESS – Innovative Technology for Fingerprint Live Scanners
Programme: European Commission – FP7-SEC-2012-1 (FP7 Security Programme)
Project duration: 01 Nov 2013 – 30 Apr 2017
Funding scheme: Specific Programme “Cooperation”: Security
Total cost: € 4 252 675,20
CORDIS:
Final report & project reporting
Project objective
INGRESS aimed to develop and validate innovative fingerprint live-scanning technologies by analysing additional biometric features associated with the finger, including:
- capturing sub-surface fingerprint patterns (internal fingerprints),
- improving acquisition for very low-quality fingerprints,
- enabling reliable scanning in cases of skin damage, dermatological disorders and surface contamination.
Key technological assumptions
- acquiring fingerprint information below the epidermis layer,
- increased resistance to spoofing (fake fingerprints),
- higher image quality than classical optical and capacitive sensors,
- validation in operational-like conditions.
Consortium
- PBP OPTEL Sp. z o.o.
- Ministry of the Interior of France
- Morpho Safran (now IDEMIA)
- Bundesamt für Sicherheit in der Informationstechnik (BSI, Germany)
Project significance
- strengthened European capabilities in security biometrics,
- advanced sub-surface imaging methods for fingerprints,
- supported progress towards anti-spoofing biometric systems,
- aligned with EU priorities in border security and identity verification.
HIDE (Grant agreement ID: 217762)
HIDE – Homeland Security, Biometric Identification and Personal Detection Ethics was
a European Commission-funded research and coordination action under FP7, focused on creating a
pan-European dialogue on the ethical, legal and social implications of personal detection and
biometric technologies. The project brought together interdisciplinary expertise to address the
balance between security objectives and fundamental rights in the deployment of biometric
identification systems, exploring issues such as privacy, trust, transparency, governance and
ethical frameworks for emerging personal detection technologies, including biometrics. HIDE
helped shape discussions on responsible innovation and policy in the context of security and
identity systems. EU contribution: € 963 762,50. CORDIS project page.
The consortium included academic, policy and industry partners across Europe and beyond,
engaging stakeholders in debates about privacy, societal acceptance, and governance models
for biometric and personal detection systems, contributing to a more informed approach to
ethical and social challenges raised by security technologies and mass surveillance concerns. :contentReference[oaicite:0]{index=0}
HIDE (Grant agreement ID: 217762)
HIDE – Homeland Security, Biometric Identification and Personal Detection Ethics was
a European Commission-funded research and coordination action under FP7, focused on creating a
pan-European dialogue on the ethical, legal and social implications of personal detection and
biometric technologies. The project brought together interdisciplinary expertise to address the
balance between security objectives and fundamental rights in the deployment of biometric
identification systems, exploring issues such as privacy, trust, transparency, governance and
ethical frameworks for emerging personal detection technologies, including biometrics. HIDE
helped shape discussions on responsible innovation and policy in the context of security and
identity systems. EU contribution: € 963 762,50. CORDIS project page.
The consortium included academic, policy and industry partners across Europe and beyond,
engaging stakeholders in debates about privacy, societal acceptance, and governance models
for biometric and personal detection systems, contributing to a more informed approach to
ethical and social challenges raised by security technologies and mass surveillance concerns. :contentReference[oaicite:0]{index=0}
Projects with NCBiR
Co-financed by the National Centre for Research and Development (Poland) – Defence & State Security R&D programme. These projects contributed to the development of an automated border control system, mobile biometric identification, and ultrasonic biometric verification with anti-spoofing fingerprint technology.
Automated border clearance using biometric self-service and transport inspection
Project ID: DOBR/0017/R/ID1/2012/03
Funding: NCBiR (Poland)
Programme area: Defence & State Security
Performed for: Ministry of the Interior (Poland)
Executive summary
The project aimed to improve the process of crossing the EU external border by developing an automated border control system (ABC) enabling self-service verification for holders of biometric passports and other documents containing biometric data (face image and fingerprints). The system supports road (pedestrian/vehicle) and airport border crossings and enables unattended identity verification by matching document biometrics with the characteristics of the person being processed.
Key technologies & impact
- Ultrasonic biometric verification for fingerprints, improving reliability when fingerprints are contaminated, damaged or wet, where optical methods often fail.
- Face biometric verification for automated identity checks aligned with operational border requirements.
- Database verification of identity data extracted from the passport chip against Border Guard information systems.
- Automated inspection of passenger vehicles to detect persons or prohibited cargo hidden in closed compartments, using ultrasound technology in an innovative manner.
Development of an energy-efficient biometric kit for mobile control using acoustic systems and face imaging
Project ID: PBS2/B3/22/2013
Funding: NCBiR (Poland)
Programme: Scientific research and development for Defence & State Security
Consortium
- Military University of Technology (WAT) – consortium leader
- JAS Technologie Sp. z o.o.
- PBP OPTEL Sp. z o.o.
- Mlabs Sp. z o.o.
Operational context
The project addressed the needs of mobile border control and identity checks in locations requiring wearable and portable equipment, such as trains, buses, mobile patrols and temporary checkpoints. The key requirements were mobility, low power consumption and reliable operation in field conditions.
System scope
- Biometric document reader (chip reading, identity and biometric data extraction)
- Acoustic fingerprint scanner based on ultrasound: anti-spoofing fingerprint technology and improved capture in difficult conditions
- Face imaging module (video camera providing compliant facial image quality)
- Intelligent power management (energy-efficient architecture and subsystem power control)
- Software for the mobile terminal and server-side components, with integration to security databases
Result
A demonstrator of a mobile biometric identification system integrating biometric document reading, facial verification and ultrasonic biometric verification of fingerprints, enabling secure identity checks during field operations.
Mobile border control adapted to EU requirements
Funding: NCBiR (Poland)
Programme area: Defence & State Security
Executive summary
The project focused on designing and validating a mobile border control system aligned with EU operational requirements and biometric standards. The objective was to enable efficient and secure identity verification with interoperability-ready architecture for modern border operations.
Key capabilities
- Automated identity verification using biometric document data
- Ultrasonic biometric verification to enhance reliability and resilience in field conditions
- Anti-spoofing approach leveraging acoustic properties of human tissue vs. artificial materials
- Integration-ready software architecture for security and border information systems
automated border control system, ultrasonic biometric verification, anti-spoofing fingerprint technology, acoustic fingerprint scanner, mobile biometric identification system, border security, identity verification
Scientific Publications
Keywords: Finger recognition, ultrasonic holography, live finger recognition, liveness detection
Download PDF | DOI:10.1109/BIOSIG.2016.7736918
Download PDF | Ochrona mienia i informacji, 4/2008
Download PDF | HideNewsletter, 2008
Download PDF | Published in "Twoja Komórka" nr 8/79
View Article Online
Download PDF | Instrumentation Science & Technology (1999)
Download PDF | Archives of Acoustics, 23, 1 (1998)
Download PDF | Pomiary Automatyka Kontrola, nr 12 (1998)
Download PDF | Elektronik 21/1998
Download PDF | Proc. SPIE 2390, Optical Biophysics (1995)
Download PDF | Optoelectronic and Electronic Sensors (1995)
Download PDF | Akustyka Molekularna i Kwantowa, Tom 15 (1995)
Patents
- EP-4062318A1 - Ultrasonic biometric imaging device with reflection reduction. 2019
- WO2019088896A1 - Controllable ultrasonic fingerprint sensing system and method. 2017
- DE-50009032-D1 - Pulse ultrasonic transducer with an elementar block of piezoelective material. 2005
- US-6164135-A - Method and device for the structure analysis. 2000
- CA-2366956-A1 - Impulse sound transducer with elementary piezoelectric block. 2000
- EP-0850019-B1 - Detecting position of layered objects. 1999
- DE-59407614-D1 - Device for detecting surface structures. 1999
- DE-59504696-D1 - Method and device for scanning an ultrasonic field. 1999
- EP-0756740-B1 - Process and device for tracing an ultrasound field. 1998
- DE-4418830-C2 - Method for producing spherical waves. 1999
- US-5828627-A - Apparatus for producing spherical waves. 1998
- WO-9716260-A1 - Piezoelectric ultrasonic transducer. 1997
- DE-19644676-A1 - Sound transducer. 1997
- US-5589636-A - Detection of an ultrasonic field. 1996
- US-5515298-A - Apparatus for determining surface structures. 1996
- DE-3751415-D1 - Method for detecting a fingerprint. 1995
- EP-0262186-B1 - Process for recognizing a fingerprint. 1995
- DE-4429680-A1 - Method for recognizing objects. 1995
- WO-9506262-A1 - Identifying ultrasonically registered objects. 1995
- DE-4414081-C1 - Local ultrasound field scanning method. 1995
- US5258922 - Determining of surface structures. 1993
- US4977601 - Method of recognizing a fingerprint. 1990
- DE-3613549-A1 -Original method of recognizing a fingerprint. 1986 Mar. 27