Axis M20 Series - Page 20

AXISM20BulletCameraSeries
Thedeviceinterface
Motion-adaptiveexposure:Selecttoreducemotionblurinlow-lightconditions.
P-Irisupload
:Selecttheinstalledandsupportedlens.Restartthecameraforthechangestotakeeffect.
Blur-noisetrade-off:Usetheslidertoadjusttheprioritybetweenmotionblurandnoise.Ifyouwanttoprioritizelowbandwidth
andhavelessnoiseattheexpenseofdetailsinmovingobjects,movetheslidertowardsLownoise.Ifyouwanttoprioritizethe
preservationofdetailsinmovingobjectsattheexpenseofnoiseandbandwidth,movetheslidertowardsLowmotionblur.
Note
Youcanchangetheexposureeitherbyadjustingtheexposureorbyadjustingthegain.Ifyouincreasetheexposuretime,
itresultsinmoremotionblur,andifyouincreasethegainitresultsinmorenoise.IfyouadjusttheBlur-noisetrade-off
towardsLownoise,theexposurewillpreferlongerexposuretimesoversensorgainwhentheexposureisincreased,and
theoppositeifyouadjustthetrade-offtowardsLowmotionblur.Boththegainandexposuretimewilleventuallyreach
theirmaximumvaluesinlow-lightconditions,regardlessofthepriorityset.
Lockaperture
:TurnontokeeptheaperturesizesetbytheApertureslider.Turnofftoallowthecameratoautomatically
adjusttheaperturesize.Youcan,forexample,locktheapertureforsceneswithpermanentlightconditions.
Aperture:Usetheslidertoadjusttheaperturesize,thatis,howmuchlightpassesthroughthelens.Toallowmorelight
toenterthesensorandtherebyproduceabrighterimageinlow-lightconditions,movetheslidertowardsOpen.Anopenaperture
alsoreducesthedepthofeld,whichmeansthatobjectsclosetoorfarfromthecameracanappearunfocused.Toallowmoreof
theimagetobeinfocus,movetheslidertowardsClosed.
Exposurelevel:Usetheslidertoadjusttheimageexposure.
Defog
:Turnontodetecttheeffectsoffoggyweatherandautomaticallyremovethemforaclearerimage.
Note
WerecommendyounottoturnonDefoginsceneswithlowcontrast,largelightlevelvariations,orwhentheautofocusis
slightlyoff.Thiscanaffecttheimagequality,forexample,byincreasingthecontrast.Furthermore,toomuchlightcan
negativelyimpacttheimagequalitywhendefogisactive.
Stream
General
Resolution:Selecttheimageresolutionsuitableforthesurveillancescene.Ahigherresolutionincreasesbandwidthandstorage.
Framerate:Toavoidbandwidthproblemsonthenetworkorreducestoragesize,youcanlimittheframeratetoaxedamount.
Ifyouleavetheframerateatzero,theframerateiskeptatthehighestpossiblerateunderthecurrentconditions.Ahigher
frameraterequiresmorebandwidthandstoragecapacity.
Compression:Usetheslidertoadjusttheimagecompression.Highcompressionresultsinalowerbitrateandlowerimagequality.
Lowcompressionimprovestheimagequality,butusesmorebandwidthandstoragewhenyourecord.
H.26xencoding
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