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Invisible Sensing of Vehicle Steering with Smartphones

Invisible Sensing of Vehicle Steering with Smartphones. Dongyao Chen, Kyong -Tak Cho, Sihui Han, Zhizhuo Jin, Kang G. Shin. Motivation. Lane marker detection For lane departure warning system Detect car maneuvers. Camera is useful in many applications. Autonomous vehicle

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Invisible Sensing of Vehicle Steering with Smartphones

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  1. InvisibleSensingofVehicleSteeringwithSmartphones DongyaoChen,Kyong-TakCho, SihuiHan,ZhizhuoJin,KangG.Shin

  2. Motivation • Lane marker detection • For lanedeparture warning system • Detect car maneuvers Cameraisusefulinmanyapplications • Autonomous vehicle • Detect lane markers • Detect pedestrians and objects on road 1

  3. Motivation • Lane marker detection • For departure warning system • Detect car maneuvers Seeingisbelieving Camera is widelyusedin driving assistant systems SeeingisBelieving • Autonomous vehicle • Detect lane markers • Detect pedestrians and objects on road 1

  4. Motivation Does camera always work?

  5. Performance of Camera Weather Pavement Placement Lighting HeavyShadow NoLane SunlightReflection SharpTurn 4

  6. Performance of Camera Weather Pavement Placement Lighting Visibility of road objects can be easilydistorted Cameraisnotreliableforin-carpurpose HeavyShadow NoLane SunlightReflection SharpTurn 4

  7. Sole-reliance on Camera iOnRoadapp BlackSensorapp AugmentedDrivingapp CitroënDS5LDWSystem VolvoCX90LDWSystem CarSafeapp 5

  8. Sole-reliance on Camera iOnRoadapp BlackSensorapp CitroënDS5LDWSystem Sense the maneuvers w/o using camera Our Goal:Reliability! AugmentedDrivingapp VolvoCX90LDWSystem CarSafeapp 5

  9. Signatures in Vehicle Steering • Lanechanges 6 Gyroscope reading in left&rightturns

  10. Signatures in Vehicle Steering Signatures are inthe gyroscope reading • Howtodetectthesesignatures? • Howtoclassifythem? • Lanechanges 6 Left&rightturns

  11. BumpDetection 8 • Bumpdetection • Nobump→Onebump→Waitingforbump

  12. ManeuverDifferentiation 9 • Horizontaldisplacement: • Integratehorizontaldisplacementateachreadingsample

  13. RoadTest:CurvyRoad 59m 102m 10

  14. RoadTest:CurvyRoad 59m 102m 54m 101.5m 11

  15. RoadTest: Accuracy 12

  16. V-Sense: Highlights • Camera-free • Detect steering maneuversjustusingsmartphone • Differentiate turning, lane changing, anddrivingon curvy roads 7

  17. Evaluation 13 • Experimentsetup: • Implemented V-SenseonSamsungGalaxyS4andS3 • Total40htest

  18. Evaluations: Accuracy 14

  19. Evaluations: Efficiency 15

  20. Evaluations: Comparison ~1,000,000 installs ~50,000 installs 110 ratings ~50,000 installs 16

  21. Application I:DetectionofUnintendedSteering 16

  22. Application I:DetectionofCarelessSteering Instantwarningofunintendedlanedeparture Extractsoundfrombackgroundnoise 17

  23. Application II: Fine-grained Lane Guidance 18

  24. Application II: Fine-grained Lane Guidance Instantlyknowwhichlaneyouaredrivingin InterHelper Navigationapplication 19

  25. Conclusion 20 • ProposedV-Sense,acamera-freesteeringsensingapplicationsonsmartphone • Differentiatebetween • LaneChange • Left/RightTurn • U-Turn • DrivingonCurvyRoads • Twoproof-of-conceptapplications

  26. Thank you 21 Q&A

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