分辨率相关知识.docx

单位描述分辨率的单位有：（dpi点每英寸）、lpi（线每英寸）和ppi（像素每英寸）。但只有lpi是描述光学分辨率的尺度的。虽然dpi和ppi也属于分辨率范畴内的单位，但是他们的含义与lpi不同。而且lpi与dpi无法换算，只能凭经验估算。另外，ppi和dpi经常都会出现混用现象。但是他们所用的领域也存在区别。从技术角度说，“像素”只存在于电脑显示领域，而“点”只出现于打印或印刷领域。1换算ppi和lpi可以换算，lpi等于ppi的一半，但是取决于纳奎斯特极限显示器分辨率标屏分辨率宽屏分辨率QVGA320240WQVGA400240VGA640480WVGA800480SVGA800600WSVGA1024600XGA1024768WXGA1280720/1280768/1280800XGA+1152864WXGA+1366768SXGA12801024/1280960WSXGA1440900SXGA+14001050WSXGA+16801050UXGA16001200WUXGA19201200QXGA20481536WQXGA25601600照相机分辨率百万像素4:3分辨率16:9分辨率0.3M6404807204050.5M8006009605400.6M10245760.7M9607200.8M10247680.9M12807201M115286413667681.2M12809601.5M1400105016009002M16001200192010802.4M17921344204811523.2M204815364M23041728256014405M25921944307217286M281621127M307223047.5M320024008M32642448384021609M345625929.5M360027004096230410M3672275411M3840288012M400030004608259212.5M4096307215M480032005120288020M5120384030M64004800代码对照表序号显示模式代码水平象素垂直象素比例1QQCIF887211:92SUB-QCIF128964:33QQVGA1601204:34QCIF17614411:95Sub-QVGA-20817613:116Sub-QVGA2201765:47Sub-QVGA+24017615:118CGA32020016:109QVGA3202404:310CIF35228811:911nhd6403604:312WQVGA4002405:313WQVGA4003205:414WQVGA4802402:115WQVGA48027216:916HQVGA4803203:217VGA6404804:318EGA64035064:3519VGA+7204803:220PAL7685764:321WVGA8004805:322FWVGA85448016:923SVGA8006004:324DVGA9606403:225WSVGA1024600128:7526XGA10247684:327WXGA128076815:928128080016:1029UxGA/XVGA12809604:330SXGA+1280102425:1631SXGA+140010504:332WXGA+144090016:1033WSXGA1600102425:16341600105032:2135USVGA/UXGA/UGA160012004:336WSXGA+1680105016:1037UXGA1900120019:1238WSUVGA+(WSUGA/HDTV)1920108016:939WUXGA1920120016:1040SUVGA(QXGA)204815364:341UWXGA2560160016:1042USXGA256020485:443QUXGA320024004:344WQUXGA3840240016:10名词缩写解释VGA：Video Graphics Array；S:Super(超过)，:Etended(扩展)，U:Ultra(终极)，第一个Q:Quarter(四分之一)，最后一个Q:Quantum(量化)VGA: Video Graphics ArrayQVGA: Quarter Video Graphics ArrayQQVGA: Quarter QVGASub-QVGA: Sub Quarter QVGACIF: Common Intermediate FormatQCIF: Quarter Common Intermediate FormatQQCIF: Quarter QCIF Sub-QCIF: Sub Quarter QCIF注：