Project: Mole

MoLe: Motion Leaks through Smartwatch Sensors

Authors: He Wang, Ted Tsung-Tei Lai, Romit Roy Choudhury

Paper in ACM MobiCom 2015
Slides from the MobiCom 2015 presentation

Press Release: Daily Mail, Sina News, Yahoo News, The Times of India,, Bangkok Post, Daily Illini, ChicagoInno, Motherboard.VICE, Wareable, PhysOrg, Popular Science, TechRadar, ConsumerAffairs, EurekAlert, Security Affairs,, ...

Project: OverLay

OverLay: Practical Mobile Augmented Reality

Authors: Puneet Jain, Justin Manweiler, Romit Roy Choudhury

Paper in ACM MobiSys 2015
Slides and Video from the MobiSys 2015 presentation

Project: WalkCompass

I am a Smartphone and I can Tell my User’s Walking Direction

Authors: Nirupam Roy, He Wang, Romit Roy Choudhury

Paper in ACM MobiSys 2014
Slides from the MobiSys 2014 presentation

More details on project webpage

NDSS application scenarios

Project: AccelPrint

AccelPrint: Imperfections of Accelerometers Make Smartphones Trackable

Authors: Sanorita Dey, Nirupam Roy (Co-primary authors), Wenyuan Xu, Romit Roy Choudhury, Srihari Nelakuditi

Paper in NDSS 2014
Slides from the NDSS 2014 presentation

Press Release: MIT Technology Review , The Telegraph, UK, Yahoo News, Gizmag, PhysOrg, RedOrbit, TG Daily , The Voice of Russia , Science Daily, Digital Spy, EE Times, Science Newsline Technology , Quartz , BGR News, NewsDuet , Digit , Press-News, NDTV, The Times of India, The Economic Times, ...

InSight application scenarios

Project: InSight

InSight: Recognizing Humans without Face Recognition

Authors: He Wang, Xuan Bao, Romit Roy Choudhury, Srihari Nelakuditi

Paper in ACM HotMobile 2013

Press Release: Los Angeles Times, CNET, San Francisco Chronicle, NewScientist, Sina, Bangkok Post, The Verge, Engadget, Gizmag, Gizmodo, TechCrunch, PhysOrg, Business Insider, PCWorld, InformationWeek, Slate, Mobile Magazine, ZDNet, ...

Project: UnLoc

No Need to War-Drive: Unsupervised Indoor Localization

Authors: He Wang, Souvik Sen, Ahmed Elgohary, M. Farid, Moustafa Youssef, Romit Roy Choudhury

Paper in ACM MobiSys 2012

Press Release: Gizmag, TG Daily, Scientifc American, News Observer, The Verge, PhysOrg, Connected World, Fast Company, I Programmer, Prescouter, Duke Today ...

Project: OPS

Satellites in Our Pockets: An Object Positioning System using Smartphones

Authors: Justin Manweiler, Puneet Jain, Romit Roy Choudhury

Paper in ACM MobiSys 2012

Justin with the SleepWell system

Project: SleepWell

Avoiding the Rush Hours: WiFi Energy Management via Traffic Isolation

Authors: Justin Manweiler, Romit Roy

Paper in ACM MobiSys 2011

Nominated for Best Paper Award at MobiSys 2011
Runner-up to Best Demo at MobiSys 2011
Invited for IEEE Transactions on Mobile Computing

Press Release: The Washington Post, The Wall Street Journal, Scientific American, Slashdot, Engadget, TechCrunch, Business Insider, Network World, PhysOrg, ScienceDaily ...

Project: TagSense

TagSense: A Smartphone based Approach to Automatic Image Tagging

Authors: Chuan Qin, Xuan Bao, Romit Roy Choudhury, Srihari Nelakuditi

Paper in ACM MobiSys 2011
Full Video: Part 1, Part 2

Press Release: ACM TechNews, Network World, TG Daily, gizmag, Technorati, The Hindu

Project: Virtual White Board

Virtual White Board TEDx Talk

Authors: Vansh Muttreja, Naveen Santhapuri, Joe Levy, Romit Roy Choudhury

Project: PhonePoint Pen

Using Mobile Phones to Write in Air

Authors: Sandip Agrawal, Ionut Constandache, Shravan Gaonkar, Romit Roy Choudhury

Paper in ACM MobiSys 2011
Paper in ACM Sigcomm Workshop -- MobiHeld 2009
Also won Hoffmann Krippner Award for most innovative input device

Press Release: American Scientific, Slashdot, The Guardian, UK, ABCNews, Yahoo News, ScienceDaily, MSN UK, Live Science ...


Project: SurroundSense

Mobile Phone Localization Via Ambience Fingerprinting

Authors: Martin Azizyan, Ionut Constandache, Romit Roy Choudhury

Paper accepted in ACM MobiCom 2009

Press Release: ACM TechNews, American Scientific, NSF From the Field, Chronicle, Yahoo News, ...