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dc.contributor.authorMarco Rider, Jaime
dc.contributor.authorCibicik, Andrej
dc.contributor.authorEgeland, Olav
dc.date.accessioned2022-08-25T12:56:52Z
dc.date.available2022-08-25T12:56:52Z
dc.date.created2022-08-03T08:09:23Z
dc.date.issued2022
dc.identifier.citationIEEE Sensors Journal. 2022.en_US
dc.identifier.issn1530-437X
dc.identifier.urihttps://hdl.handle.net/11250/3013592
dc.description.abstractIn this work, we propose a novel pipeline method for laser line extraction from images with a polarization image sensor. The proposed method is specially developed for strong laser beam reflections from metal surfaces. For the pre-processing stage, we propose a demosaicing algorithm for color polarizer filter array (CPFA) sensors. This can be implemented by using either one quarter or full resolution of the sensor. In addition, we propose two methods for optimizing the information available in a 12-channel color polarization image: The first method, is based on the minimum linearly polarized irradiance, and the second method, is based on the linear polarization intensity. These pre-processing, and optimization methods are combined with laser line extraction methods. The laser line extraction is done with either the Polarized Finite Impulse Response (FIR) Center Of Gravity (COG), where the laser line coordinates are computed from the filtered laser intensity distribution, or with the Polarized FIR-Peak, where the laser line coordinates are calculated from the first derivative of the filtered laser signal. The performance of the proposed algorithms is studied experimentally using a laser line scanner assembly, made of a polarization camera, and a laser line projector operating in the blue wavelength range.en_US
dc.language.isoengen_US
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en_US
dc.subjectImage sensorsen_US
dc.subjectSensorsen_US
dc.subjectLasersen_US
dc.subjectImage color analysisen_US
dc.subjectCamerasen_US
dc.subjectReflectionen_US
dc.subjectPolarizationen_US
dc.titlePolarization image laser line extraction methods for reflective metal surfacesen_US
dc.title.alternativePolarization image laser line extraction methods for reflective metal surfacesen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.source.journalIEEE Sensors Journalen_US
dc.identifier.doi10.1109/JSEN.2022.3194258
dc.identifier.cristin2040793
dc.relation.projectNorges forskningsråd: 295138en_US
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2


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