NEC PA721X - ❻ Projecting an Image from an Angle; Utility Lite) (MM Models); What You Can Do with GCT; Projecting an Image from an Angle (GCT)

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8. User Supportware
❻ Projecting an Image from an Angle (Geometric Correction
Tool in Image Express Utility Lite) (MM Models)

TheGeometric CorrectionTool(GCT)functionallowsyoutocorrectdistortionofimagesprojectedevenfrom an
angle.
What you can do with GCT
• TheGCTfeatureincludesthefollowingthreefunctions
• 4-point Correction:Youcantaprojectedimagewithintheborderofthescreeneasilybyalignthefourcorners
ofanimagetotheonesofthescreen.
• Multi-point Correction:Youcancorrectadistortedimageonthecornerofawallorirregularshapedscreen
byusingmanyseparatedscreenstocorrecttheimageaswellas4-pointCorrection.
• Parameters Correction:Youcancorrectadistortedimagebyusingacombinationoftransformationalrules
preparedinadvance.
Thissectionwillshowanexampleforusewith4-pointCorrection.
Forinformationabout“Multi-pointCorrection”and“ParametersCorrection”,seethehelpleofImageExpress
UtilityLite.(→page200)
• Yourcorrectiondatacanbestoredintheprojectororyourcomputerwhichcanberestoredwhennecessary.
• TheGCTfunctionisavailablewithawiredorwirelessLANconnection,andvideocable.
Projecting an Image from an Angle (GCT)
• ForavideocableorLANconnection,installandstartImageExpressUtilityLiteinyourcomputerbeforehand.(→
page198)
Preparation:Adjusttheprojectorpositionorthezoomsothattheprojectedimagecancoverthewholescreenarea.
1. Clickthe“ ”(Picture)iconandthenthe“ ”button.
 The“4-pointCorrection”windowwillbedisplayed.
2. Clickthe“StartCorrection”buttonandthen“Start4-pointCorrection”button.
 Agreenframeandamousepointer( )willbedisplayed.
• Four[•]markswillbeappearedatfourcornersofthegreenframe