Homeland Security and National Defense

As part of our mission, SRI helps the U.S. government meet imperative homeland security needs. In the past decade alone, SRI has performed more than $4B in contract R&D, primarily for the U.S. government.

Technologies and programs developed at SRI play important roles in U.S. military and civilian efforts to combat terrorism, at home and abroad—from mapping systems for air combat training used during the Cold War to speech-enabled translation software deployed in Afghanistan and Iraq.

SRI's solutions for safeguarding our nation range from instrumented combat training for the National Guard to cyber security, threat detection, and persistent surveillance technologies.

Through its unmatched engineering and systems integration expertise, SRI has developed solutions to challenging technology and security issues for more than 65 years. An experienced and reliable government contractor, SRI excels at collaborative partnerships with multiple stakeholders. We are skilled at early-phase, collaborative definition of new systems, and create platform technologies that enable future applications. Projects span the system life cycle, from concept definition through production and support, for end-to-end customer solutions.

Clients include the Department of Homeland Security, the Defense Advanced Research Projects Agency, the Homeland Security Advanced Research Projects Agency, National Institutes of Health, all branches of the Armed Services, and the National Guard.

Strategic Alliances for Joint Research and Development, Testing, and Practical Application

SRI partners with these organizations to develop, field-test, and deploy homeland security applications:

Program Areas



SRI is improving the robustness of speech processing technologies and transitioning them to government partners for use in highly noisy operational audio conditions.

diagram showing how language is used in various settings

SRI is developing software that can uniquely identify a system’s users from spoken and written inputs, rather than using passwords.

SAVE diagram

The SAVE framework supports training in virtual environments through automated assessment of learner performance and tools for content authoring.

SRI researchers examine a IPDM test device.

SRI has developed a novel approach to safely and efficiently render harmless weapons and ammunition that are no longer needed for military use.

green boxes highlighting people walking on street

SRI’s vision-based systems enable safe operations of moving unmanned ground vehicles around stationary and moving people in urban or cluttered environments.

image collage showing SRI's biometric system and a close-up of a man's eyes

SRI International is developing a system that delivers affordable, accurate iris recognition of moving subjects at a distance.

Products & Solutions

PassThru image

An iris biometric system for vehicle entry points, the IOM drive-up product extends the use of identity authentication to the perimeter. Easy-to-use and automated, the drive-up system can efficiently replace RFID cards, passcodes, or security guards at the gate.

screenshot of a download in progress on a computer

BLADE blocks even unknown, zero-day attacks without interfering in normal browser operations.

illustration of Earth with web connections viewed as light streams

To shield computer networks from cyber-attacks, SRI's HPB software analyzes millions of entries from worldwide volunteers participating in a firewall correlation system, and uses them to analyze attack trends.

words in red, such as bug, malware, hacking, phishing

SRI and partners have devised Eureka, a free online service to evaluate whether detailed analysis of malware threats is warranted.

BotHunter logo

SRI’s BotHunter system takes a unique approach to discerning networked computers that are under control of hackers, or may be spreading malware infections.

explorer equipment

ConTEXTract™ video OCR technology finds and reads text (such as street signs, name tags, and billboards) in real scenes. Recognition of text within imagery and video requires a more specialized approach than is provided by off-the-shelf OCR software,.

four people using SEAS software

The SEAS software tool uses best analytic practices to guide analysts in collaboratively reasoning from evidence about potential threats and opportunities.

aerial view of terrain developed by SRI's Geovisualization team

SRI’s offers Geovisualization services to clients for analyzing geospatial data through interactive visualization. Precision 3D models are integrated with geographic information system (GIS) data to deliver highly accurate virtual terrain databases.

Soldiers watching after-action review training videos

Developed for the U.S. Army National Guard by SRI International, FlexTrain is a rapidly deployable, global positioning system (GPS)-based, instrumentation system primarily used to support platoon to brigade level training.

RapID-Cam II handheld device

This ruggedized, handheld device allows for simple biometric enrollment and identification anywhere in the field. The IOM Handheld Identity Reader can capture dual-iris and facial images up to eighteen inches away—putting a comfortable distance between the user and the subject.

Press Releases

SRI Identity™, an SRI International line of business, and Galaxy Control Systems today announced that the SRI IOM Access Control Tablet now supports integration with System Galaxy Access Control software. The SRI IOM Access Control Tablet will also now be available through the System Galaxy network...

Ravenswood Solutions will provide military, homeland defense and other government and commercial organizations with market-leading technology and services for collective training, test and evaluation, performance assessment and policy analysis exercises.

IOM N-Glance biometric system

AMAG Technology, an access control, IP video, and intrusion detection (IDS) solution provider, announces that SRI is now a member of the Symmetry™ Extended Business Solutions Program as a Certified Partner.

man looking at iris biometric system

SRI International Sarnoff’s Iris on the Move® (IOM) N-Glance™ biometric system is now protecting access to E-Commerce Park Curaçao, the first data center of its kind built in the Pan Caribbean area.

SRI and UC Santa Cruz researchers are making a game out of the difficult task of software verification by creating an entertaining and accessible way to find vulnerabilities in software programs or systems.

driver in car using iom passthru at security gate

SRI International Sarnoff’s Iris on the Move® (IOM) PassThru™ drive-up identification system was selected as a 2013 ASIS Accolades – Security’s Best winner. The award recognizes security’s most innovative new products, services, and solutions.

sia NPS

SRI International Sarnoff’s Iris on the Move® (IOM) PassThru™ drive-up identification system was named Best in Biometrics, Identification and Credentialing by the Security Industry Association (SIA) New Product Showcase (NPS) at ISC West 2013.

iom passthru at vehicle access gate

SRI International Sarnoff brings the security of iris recognition to drive-up applications with its new Iris on the Move® (IOM) PassThru™ system. This multimodal biometric product quickly captures face and iris images for accurate identity authentication at the perimeter of any location.

Marine talking on a smart phone

SRI has begun the final phase of a U.S. Marine Corps contract to develop and commercialize multiple-personality mobile devices. The goal of the Trusted Handheld program is to solve problems that arise when personal mobile devices are used for business purposes.

SRI In the News


Security Today featured insights from SRI’s Mark Clifton on the growing adoption of iris biometrics for access control applications.


BiometricUpdate.com featured an interview by analyst firm Technavio with SRI Identity’s Mark Clifton on emerging trends with iris biometrics.


National Defense noted SRI as one of the phase-one contract recipients for DARPA's Squad X Core Technologies program.


SDM Magazine noted SRI's Mark Clifton will be presenting on a panel addressing “End-to-End Best Practices in Systems Integration” at ISC West 2016.


C4ISR & Networks noted SRI's TerraSight full motion video (FMV) capabilities and insight from SRI's John Bradburn in an article on emerging trends in FMV surveillance.


SourceSecurity.com highlighted insights from SRI's Steve Perna on the growing applications for biometrics to enhance physical and logical access control.


SourceSecurity.com covered the introduction of SRI Identity solutions seamlessly acquire, verify and manage identity information.


SourceSecurity.com featured insights from SRI's Steve Perna on addressing common misconceptions surrounding biometrics for access control.


SourceSecurity.com featured insights from SRI's Mark Clifton on the growing role of identity management in effective security operations.


SourceSecurity.com featured SRI's Iris on the Move identity solutions in a round-up of biometrics for expanded security and identity management capabilities.


AUSA logo

SRI will be exhibiting its latest solutions for force protection and situational awareness at booth 8043.


SRI Identity™ will showcase an updated product lineup with live booth demonstrations at IFSEC 2016.

asis 2016

SRI Identity™ will showcase our updated Identity on the Move™ (IOM) product lineup with live booth demonstrations at booth 3839.


In this SPIE proceedings paper, SRI describes how its NV-CMOS™ image sensor technology is designed to capture images over the full range of illumination from bright sunlight to overcast starlight.

Adaptive smoothing in real-time image stabilization. When using the conventional fixed smoothing factor to display the stabilized video, we have the issue of large undefined black border regions (BBR) when camera is fast panning and zooming.

In this paper, published in IEEE International Symposium 3D Data Processing, Visualization, and Transmission.This paper presents a realtime, robust, and accurate stereo matching algorithm based on a coarse-to-fine architecture.

Blog Posts

Many aspects of security depend on authorizations and permissions held by an individual. Maintaining security depends on correctly identifying the individual and matching them with the correct authorizations and permissions.

SRI’s Metadata Expression Evaluation Engine (ME3) software offers increased situational awareness to government security and defense agencies.

Iris biometrics is moving from a niche component of high-end security systems into the mainstream. SRI's Iris on the Move systems will impact this expanding market in 2015.

Biometrics—including fingerprint, face, iris, and voice—is a highly accurate and reliable method of identity authentication. Each year, more businesses are reducing costs and improving operations through biometrics.

As the robotics revolution takes place all around us, SRI is advancing the robotics conversation and the research and technology development that will bring whole new robotics approaches to the market.

If your office building or facility is like most, people come and go throughout the day. Employees and visitors need quick access to get their jobs done, and your business needs security. So what is the best approach to ensuring secure access without slowing things down?

Veterans are important members of SRI International and our community of innovation. They bring an understanding of the military customer and how to get new solutions through the system. They are focused and know how to get things done.

Hollywood isn’t exactly known for accuracy, and their portrayal of biometric technology is no exception. Fingerprint scanners, facial recognition software, and iris recognition technology have become commonplace in thrillers and crime films to create suspense and high-tech futuristic scenes.

Anyone who has used a handheld video camera knows how hard it is to keep steady. A mild cough can turn footage from a kid’s soccer game into an amusement park ride. Now imagine mounting that camera onto a police cruiser or a 20,000-foot-high unmanned aircraft.