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AXISP14NetworkCameraSeries
Setup
Howtoshowatextoverlaywhenthecameradetectsmotion
Thisexampleexplainshowtodisplaythetext“Motiondetected”whenthecameradetectsmotion:
MakesuretheAXISVideoMotionDetectionapplicationisrunning:
1.GotoSettings>Apps>AXISVideoMotionDetection.
2.Starttheapplicationifitisnotalreadyrunning.
3.Makesureyouhavesetuptheapplicationaccordingtoyourneeds.
Addtheoverlaytext:
4.GotoSettings>Overlay.
5.Enter#Dinthetexteld.
6.Choosealignment,textsizeandappearance.
7.Includethetextoverlay.
Createanactionrule:
8.GotoSystem>Events>Actionrules.
9.CreateanactionrulewithAXISVideoMotionDetectionastrigger.
10.Fromthelistofactions,selectOverlaytext.
11.Type“Motiondetected”.
12.Settheduration.
Streamingandstorage
Howtochoosevideocompressionformat
Decidewhichcompressionmethodtousebasedonyourviewingrequirements,andonthepropertiesofyournetwork.The
availableoptionsare:
MotionJPEG
MotionJPEGorMJPEGisadigitalvideosequencethatismadeupofaseriesofindividualJPEGimages.Theseimagesarethen
displayedandupdatedataratesufcienttocreateastreamthatshowsconstantlyupdatedmotion.Fortheviewertoperceivemotion
videotheratemustbeatleast16imageframespersecond.Fullmotionvideoisperceivedat30(NTSC)or25(PAL)framespersecond.
TheMotionJPEGstreamusesconsiderableamountsofbandwidth,butprovidesexcellentimagequalityandaccesstoeveryimage
containedinthestream.
H.264orMPEG-4Part10/AVC
Note
H.264isalicensedtechnology.TheAxisproductincludesoneH.264viewingclientlicense.Installingadditionalunlicensed
copiesoftheclientisprohibited.Topurchaseadditionallicenses,contactyourAxisreseller.
H.264can,withoutcompromisingimagequality,reducethesizeofadigitalvideolebymorethan80%comparedtotheMotion
JPEGformatandbyasmuchas50%comparedtotheMPEG-4standard.Thismeansthatlessnetworkbandwidthandstoragespace
arerequiredforavideole.Orseenanotherway,highervideoqualitycanbeachievedforagivenbitrate.
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