液晶螢幕振動對數(shù)字的影響

液晶螢幕振動對數(shù)字的影響

與本應用現(xiàn)代生活中的信息披露一樣，電子痕跡也是必要的。在你的日常生活中，你可以使用它。大多數(shù)微標簽的視覺分布是放置在區(qū)域的，而不是區(qū)域的行政區(qū)域。微標簽的數(shù)量和應用是報告的內(nèi)容。它是移動應用程序的一個片段，沒有生命嗎？如果你的視覺記錄是在家庭中記錄的，這是一個緩慢的步驟。《信息披露》應該是一個計劃。如果你讀的信息是虛假的，那么這是一個小知識。通過這一點，學習和寫作應該是進步的。《目標評價器》中的信息和行動應該是分散的。《消費者信息服務》的分類是線人類預算的一部分?！拔也恢?，讀過的消息隊列中的信息是被記錄的。”在任何層面上，都有一個基于信息的節(jié)目列表?！皩W習”和“思考”是文章的一個步驟?！拔谋尽焙汀拔⒁庖姟钡淖x者和“行動”的讀者應該是生活中的信息。Afewstudiesestablishedeffectsofvibrationonhumanvisualperformances.LewisandGriffindevelopedaseriesofexperimentinwhichtensubjectsperformedanumeralreadingtaskunderfivelevelsofsinusoidalwholebodyvibrationatvariousfrequenciesinthreetranslationalaxes.Allofthevibrationconditionswerepresentedwithtwoseatingconditions:hardflatseatwithfixedfootrestandasimulatedhelicopterseatwithmovingfootrest.Thestudyfoundthatwithboththeseatstheeffectofvibrationlevelonreadingaccuracywassignificantatallfrequenciesofdifferenttranslationalaxes.Incomparingtheeffectsofvibrationsources,MoseleyandGriffinfoundthatwhenonlythedisplaywassubjecttovibration,itresultedinthepoorestvisualperformance,whilesimultaneouswhole-bodyanddisplayvibrationsproducedtheleastperformancedecrement.Theyalsodiscussedtheeffectsofviewingconditionsandthevibrationfrequencyinrelationtoknowncharacteristicsofthehumanvisualsystem.LewisandGriffinfurtherstudiedtheeffectsofvibrationfrequencyandviewingdistanceonthereadingofnumericcharacters.Theeffectofvibrationonreadingperformancewasfoundtobedependentonviewingdistancefordistancesoflessthan1.5m,withtheeffectincreasingastheviewingdistancewasdecreased.Theeffectof3.15Hzvibrationwasfoundtoincreasemorerapidlywithreductionsinviewingdistancethanthatof16Hzvibration.Theeffectsof3.15and16Hzvibrationwereindependentofviewingdistancegreaterthan1.5m,indicatingthattheeffectsofrotationaleyemotionaredominantatthesedistances.Whenthesubjectundergoesangularoscillationsandthedisplayisstationary,reasonableacuityismaintaineduptoabout8Hz.Ifthesubjectisstationaryandthedisplayisoscillating,thevisualacuityfordetailswillbegintodeteriorateabove0.5and0.6Hz.Anderssontestedtheacuityofreadingfiverandomnumbersfromverticallyvibratingdisplaysatfrequenciesbetween0.5and7.0Hz.Thenumberswerepresentedinverticalandhorizontalorders.Whenthenodalpointswhichareemergentpatternsinnestedaggregatesofdata,clearlyenoughtomakepredictionsoftheoscillationweremasked,itwasalmostimpossibletoreadthenumbersabove1.5Hz.Whenthenodalpointsoftheoscillationwerevisible,thesubjectscouldreadthenumbersuptoabout6Hz.Barnes,etal.foundthattheabilitytofollowadigitaldisplayduringsinusoidaloscillationbreaksdownatfrequenciesabove1.0Hz.Abovethisfrequency,thesubjectsreportedthatthedigitscouldonlybeviewedatthenodalpointsoftheoscillation.Theabilitytofollowatargetmaybeestimatedbythetrackingerrorwhichisthedifferencebetweentheeyevelocityandthetarget.Thetrackingerrorisnegligibleatlowfrequenciesunder0.6Hz,butat1.0Hztherewasasignificantincreaseintheerror.MorerecentlyAnderssontestedthereadingcapabilityofsymbolspresentedonacomputermonitorduringverticalvibrationinamilitaryaircraft.Thestudyfoundthatcomplexityofsymbolshadasignificanteffectonthevisualperformance.Theorientationsofsymbolswerealsoofimportanceforthereadability.Symbolsmadeupofhorizontallyorientedlineswerefoundtobeespeciallydifficulttoreadduringverticalvibration.Althoughsomeofthesestudieshavecontributedtotheunderstandingofthemechanismsinvolvedinthedegradationofvisualperformanceduetovibration,muchinformationisyettobediscoveredbeforeusefulguidelinesandprinciplescanbeaccumulatedandgeneralizedastothedesignofthedisplaycontentforthevisualdisplayprogrammerstofollow.HsiehandLindevelopedanexperimenttoevaluatethevisualperformanceofLCDdisplayunderdifferentvibrationenvironments.Thestudyfoundthatmotiondecreasedtheperformanceandincreasedthevisualfatiguewhenreadingasetofhorizontallypresentednumbers.ThefocusofthepresentstudyistoextendthestudyofHsiehandLintoaddresstheeffectofvibrationonreadingverticallyarrangednumericalcharacters(seeFig1).Thevibrationwassimulatedwithasoftwareadjustablescreensothatdifferentvibrationenvironmentscanbeimplemented.Visualperformanceandvisualfatigueweremeasuredwhiledifferentvibrationparameterswereused.Thedetailedmethodwasdescribedbelow.1virationu2004.3.4.4回歸系統(tǒng)viractityTherearetwotypesofexperimentalfactorsconsideredinthestudy,thedisplayfactorandthevibrationfactor.Thedisplayfactorsmanipulatedwerethefontsizeofthenumeric(6pt,9pt,12pt)andthenumberofdigits(1,2,4).Thevibrationfactorincludestheamplitudeofvibrationexpressedwithreferencetothefontsize(2pt,4pt,6pt,8pt),thefrequencyofvibration(2.5Hz,5Hz,10Hz,20Hz,40Hz),andthedirectionofvibration(vertical,horizontal).Visualperformanceandvisualfatigueweremeasuredwiththereactiontime,accuracy,criticalflickerfusionfrequency(CFF),visualacuity,andsubjectiveratingsofvisualfatigue.1.1案例5:全球最短的sob長期目標Sixfemalesandfourmalesweretestedinthisexperiment.Theywere20-30yearsoldandofferedabout25USdollarsfortheirparticipation.Allsubjectshadnormalvisualacuityoratleast0.8aftercorrectionandnormalcolorvision.1.2schenreponuscuritischen-pcrALafayett12021andOptec2000VisionTesterwereusedtotesttheCFF(criticalfusionfrequency)andvisualacuityofsubjects.AnIntelP-4CPU1.8GHzwithaSamsung172B17-inLCDwasusedtopresenttheexperimentaltaskatascreenresolutionof1024×768pixels.1.3選擇task—StimuliTheexperimentalinterfacewasestablishedwiththeVisualBasic6.0programminglanguage.ThescreendisplayisshowninFig.1.Allnumberswerepresentedatthecenterofthetaskwindowwithblackcoloronagraybackground.Verticalorhorizontalsinusoidalvibrationswithpredeterminedamplitudesandfrequencieswereappliedtothetaskwindowsothatitlookedlikethedisplaywasbeingvibrated.1.5ddisappeared.u2005.3.4和eachfrequental國際通用規(guī)則見表3Duringtheexperiment,thesubjectwasaskedtoidentifythenumberspresentedonthevibratingtaskwindowandrespondwhatwasseenbypressingthenumberkeysonthekeyboard.Eachpresentationofnumberslastedfor1sanddisappeared.Thetimebetweeneachpresentationwas2s.Theexperimentalorderforthenumberofdigit,fontsize,anddirectionofvibrationwererandom.Withineachcombinationofnumberofdigit,fontsize,anddirectionofvibration,randomlyselectedfrequencyandamplitudecombinationwastesteduntilallfrequenciesandamplitudesweretested.Therewasapauseof5minaftereachfrequencyandamplitudeblock(5frequency×4amplitude)inordertocarryoutthemeasurementofvisualacuity,CFF,andsubjectiveratings.Totallythereare360(3×3×4×5×2)combinationsofexperimentforeachsubject.AnoverviewofthedesignofexperimentisshowninTable1.2產(chǎn)品系統(tǒng)2.1accitude./veractisIntheexperiment,visualperformancewasmeasuredbyreactiontimeandaccuracy.Theresultsoftheanalysisofvariancesshowedthatdifferentvibrationfrequency,amplitude,fontsize,numbersandthedirectionofvibrationhadasignificanteffectonsubjects’visualperformance.2.1.1rectinfig.3.3.3reacityoffig.3,3,4,4,4,4,4,4,4,3,4,3,4,4,4,4,4,4,4,3,4,3,4,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4.3.3.3.3.3.4.3.3.3.3.4.3.4.3.3.3.3.3.4.3.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4.3.4Theeffectsofvibrationfrequency,amplitude,fontsize,numbersandthedirectionofvibrationonreactiontimeweretestedinANOVA.Therewerenosignificanteffectsofvibrationfrequencyonreactiontime.AndthemaineffectplotofamplitudeandfontsizeisshowninFig.2,3respectively(F(3,3523=3.49,p<0.01),F(3,3523=23.92,p<0.01).Asintheexperiments,higheramplitude,smallerfontsize,morenumbers,andverticalvibrationgaverisetohigherreactiontime.2.1.2ctsforequecy,agizactization,清c.4,5,6,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,5,6,7,7,7,7,7,7,7,7,7,7,7,7,7,5,7,7,7,7,7,7,7,7,7,7,7,7,7,5,7,7,5,6,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7.4,5,7.4,7.4,7.4,7.4,7.4,7.4.4,7.4,7.4.4,7.4,7.4.4,7.4.4,7.4.4,7.4.4,7.4.4,7.4.4,7.4.4.4,7.4.4,7.4,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,Theeffectsofvibrationfrequency,amplitude,fontsize,numbersandthedirectionofvibrationonaccuracyweretestedinANOVA.Itshowssignificantmaineffectsforfrequency,amplitude,fontsize,numbersandthedirectionofvibrationonaccuracy.Asintheexperiments,highervibrationfrequencyandamplitude,smallerfontsize,morenumbers,andverticalvibrationgaverisedifficulttoidentifythenumerics.Themaineffectplotoffrequency,amplitude,fontsizeandnumbersisshowninFig.4,5,6,7respectively(F(4,3523=43.66,p<0.01),F(3,3523=2.31,p<0.05),F(3,3523=3.49,p<0.01),F(3,3523=38.85,p<0.01),F(3,3523=141.42,p<0.01).2.2uencyu2004IntheexperimentvisualfatigueweremeasuredbyCriticalFusionFrequency(CFF),vision,andsubjectivemeasures.Theresultsoftheanalysisofvariancesshowedthatdifferentfontsize,numbersandthedirectionofvibrationhadsignificanteffectsonsubjects’visualfatigue.2.2.1cff的選擇Theeffectsoffontsize,numbersandthedirectionofvibrationonCFFweretestedwithANOVA.ItshowssignificantmaineffectsforfontsizeandnumbersofvibrationonCFF.AndthemaineffectplotoffontsizeandnumbersisshowninFig.8,9respectively(F(2,157=126.49,p<0.01),F(2,157=97.79,p<0.01)).Asintheexperiments,smallerfontsizeandmorenumbersgaverisetolessCFFvalue.Asignificantinteractioneffectwasfoundbetweennumbersandfontsize.Numbersofnumericshadagreatereffectonthevisualfatiguetoreadsmallerfontsizenumericsthanonbiggerfontsizenumerics.2.2.2雙側(cè)培訓和ac活性網(wǎng)絡virationTheeffectsoffontsize,numbersandthedirectionofvibrationonvisualacuityweretestedinANOVA.Itshowssignificantmaineffectsforfontsizeandnumbersofvibrationonvision.AndthemaineffectplotoffontsizeandnumbersisshowninFig.10,11respectively(F(2,157=34.74,p<0.01),F(2,157=22.62,p<0.01)).Asintheexperiments,smallerfontsizeandmorenumbersgaverisetolessvisualacuityvalue.Asignificantinteractioneffectwasfoundbetweennumbersandfontsize.Numbersofnumericshadagreatereffectonthevisualfatiguetoreadsmallerfontsizenumericsthanonbiggerfontsizenumerics.3chracter-非價值論兩文/雙價分析TheidentificationofvisualinformationdisplayedontheLCDplacedinthevibrationenvironmentsisgettingincreasinglyimportantinmanyman-machineinteractivesituations.InthestudywedemonstratedthattheidentificationofnumericcharactersontheLCDisnegativelyaffectedbyvibrationandthatthiseffectisdependentonthevibrationfrequency,amplitude,fontsize,numberofcharacters,andthedirectionofvibration.TheresultsareconsistentwithHsiehandLin.Again,thestudyshowstheimportanceofconsideringvibrationeffectsthatarelikelytobeencounteredinthevisualtaskforLCDdisplaysthatareplacedinsidevehicles.Theaccuracyofreadingdecreaseddramaticallyasthefrequencywasincreasedbeyond20Hz.Thereadingaccuracydroppedastheamplitudewasincreased.Theperformancedecreaseseemedtostopat6ptorbeyondindicatingalargerfontthan6ptisresistanttotheeffectofmotion.Further,whenthenumericswereverticallypresentedunderhorizontallyvibration,itseemsthatit’seasiertoidentifythenumbersthanverticalmotion.Theidentificationofthenumberswasalsoaffectedbythenumberofcharacters.Itisther