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车载反射消除simon reflection removal for cvpr paper.pdf

发布：2024-08-12约10.45万字共23页下载文档

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ReﬂectionRemovalforIn-VehicleBlackBoxs

ChristianSimonandInKyuPark

DepartmentofInformationandCommunicationEngineering,InhaUniversity

Incheon402-751,Korea

{sen.christiansimon@,pik@inha.ac.kr}

Thein-vehicleblackboxcamera(dashboardcamera)

hasbecomeapopulardeviceinmanycountriesforsecurity

monitoringandeventcapturing.Thereadabilityof

contentisthemostcriticalmatter,however,thecontentis

oftendegradedduetothewindscreenreﬂectionofobjects

inside.Inthispaper,weproposeanovelmethodtoremove(a)

thereﬂectiononthewindscreenfromin-vehicleblackbox

s.Themethodexploitsthespatio-temporalcoherence

ofreﬂection,whichstatesthatavehicleismovingforward

whilethereﬂectionoftheinternalobjectsremainsstatic.

Theaverageimagepriorisproposedbyimposingaheavy-

taildistributionwithahigherpeaktoremovethereﬂection.

Thetwo-layeredscenecomposedofreﬂectionandback-

groundlayersisthebasisoftheseparationmodel.Anon-

convexcostfunctionisdevelopedbasedonthispropertyand

optimizedinafastwayinahalfquadraticform.Experi-

mentalresultsdemonstratethattheproposedapproachsuc-

cessfullyseparatesthereﬂectionlayerinseveralrealblack

boxs.

(b)

1.Introduction

Figure1:Reﬂectionlayerseparationfromthein-vehicle

Theevolvingparadigmoftheautomobileindustryhasblackbox.(a)B

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