Axis 0883-001-EOL AXIS Q1615 Mk II User Manual

Loading ...

AXISQ1615MkIINetworkCamera

VideoandAudio

•Resolution.Selectthedefaultresolution.

•Compression.Thecompressionlevelaffectstheimagequality,bandwidthandlesizeofsavedimages;thelowerthe

compression,thehighertheimagequalitywithhigherbandwidthrequirementsandlargerlesizes.

•Mirrorimage.Ifrequired,theimagecanbemirrored.

•Rotateimage.Ifrequired,theimagecanberotated.

•Maximumframerate.Toavoidbandwidthproblems,theframerateallowedtoeachviewercanbeLimitedtoaxed

amount.Alternatively,theframeratecanbesetasUnlimited,whichmeanstheAxisproductalwaysdeliversthehighest

frameratepossibleunderthecurrentconditions.

•Overlaysettings.SeeAboutoverlaytextonpage27.

ClickSavetoapplythenewsettings.

AboutH.264

H.264,alsoknownasMPEG-4Part10/AVC,isavideocompressionstandardthatprovideshighqualityvideostreamsatlowbitrates.

AnH.264videostreamconsistsofdifferenttypesofframessuchasI-framesandP-frames.AnI-frameisacompleteimage,whereas

P-framesonlycontainthedifferencesfrompreviousframes.

AboutZipstream

Axis’ZipstreamTechnologyisabitratereductiontechnologyoptimizedforvideosurveillance.Zipstreamreducestheaveragebitrate

intheH.264streambyremovingunnecessarydataandmakesitpossibletoallowhigherresolutions,reducestoragecostor

tokeeprecordingsforalongertime.

Toreducethebitrate,Zipstreamreducesthenumberofbitsintheareasoftheimagethatarelessinterestingfromavideo

surveillanceperspective,forexamplethebackground.Imagedetailsthatareimportantforforensicvideoanalysis,forexamplefaces

andlicenseplates,arepreservedwithenoughnumberofbits.

Axis’ZipstreamTechnologyforH.264conformstotheH.264standardandiscompatiblewiththird-partyclientsandVMSsolutions

thatdecodeH.264video.

Recommendeduseofbitratereduction

Zipstreamoffersanumberofbitratereductionpresets,fromLowtoExtreme.Lowbitratereductionisenabledbydefaultandis

safetouseinallapplicationswhilestillreducingthebitrate.

Forcloud-connectedcamerasorcamerasusingedgestoragethatneedtolimitthebitrateforincreasedstoragetimeitis

recommendedtoselecttheExtremebitratereduction.Thissettingissuitabletocombinewithmotiondetectiontriggeringand

variablebitrate(VBR)wherethebitrateisallowedtoadapttochangesincomplexityinthescene.

HowtosavebandwidthandstorageusingZipstream

ThebitratecontrollerbuiltintotheproductcanbecombinedwithZipstreamtoensureamaximumbitrate(MBR)limit.We

recommendusingVBRorMBRwithahighbitratelimittoenablethefullpotentialofZipstream.Forinstanceinrailwaysurveillance

whereattimesthereisalotofmovementinthesceneandwhereitisimportanttocapturedetails,suchasfacialfeatures,theMBR

shouldbesetto10Mbit/s(for1080presolutionat30fps).

TofurthersavebandwidthgotoSetup>Video&Audio>VideoStreamanddooneormoreofthefollowing:

•GototheImagetabandsetalowMaximumframeratevalue.

•GototheH.264tabandsetahighGOPlengthvalue.

•GototheZipstreamtabandselectExtremeH.264bitratereduction.

•GototheZipstreamtab.EnableDynamicGOPandsetahighMaxdynamicGOPlengthvalue.

Loading ...

Axis 0883-001-EOL Q1615 Mk II Indoor Network Camera with Intelligent i-CS Lens 0883-001