【转】电视图像标准

标清电视(SDTV)、增强清晰度电视(EDTV)图像标准
Name Native resolution (W×H) Pixel aspect ratio (W:H) Description
标准图像长宽比
(Standard 4:3)
补充图像长宽比
(Anamorphic 16:9)
480i 720×486 8:9 32:27 Used on D1 NTSC (ITU-R 601)
720×480 8:9 32:27 Used on DV NTSC
480p 704×480 (525 4SIF) 10:11 40:33 Used on EDTV NTSC
576i 720×576 16:15 64:45 Used on D1/DV PAL (ITU-R 601)
576p 704×576 (4CIF, 625 4SIF) 12:11 16:11 Used on EDTV PAL
高清电视(HDTV)图像原始标准(部分)
Video format supported Native resolution (W×H) Pixels Aspect ratio (W:H) Description
Actual Advertised (Mpixel) Image Pixel
720p
1280×720
1024×768
(XGA)
786,432 0.8 4:3 4:3 Typically a PC resolution (XGA); also a native resolution on many entry-level plasma displays with non-square pixels.
1280×720 921,600 0.9 16:9 1:1 Standard HDTV resolution and a typical PC resolution (WXGA), frequently used by video projectors; also used for 750-line video, as defined in SMPTE 296M, ATSC A/53, ITU-R BT.1543.
1366×768
(WXGA)
1,049,088 1.0 683:384
(approx. 16:9)
1:1
approx.
A typical PC resolution (WXGA); also used by many HD ready TV displays based on LCD technology.
1080p/1080i
1920×1080
1920×1080 2,073,600 2.1 16:9 1:1 Standard HDTV resolution, used by Full HD and HD ready 1080p TV displays such as high-end LCD, Plasma and rear projection TVs, and a typical PC resolution (lower than WUXGA); also used for 1125-line video, as defined in SMPTE 274M, ATSC A/53, ITU-R BT.709;
高清电视(HDTV)图像工业标准(部分)
Video format supported Screen resolution (W×H) Pixels Aspect ratio (W:H) Description
Actual Advertised (Mpixel) Image Pixel
720p
1280×720
1248×702
(干净画框)
876,096 0.9 16:9 1:1 Used for 750-line video with raster artifact/overscan compensation, as defined in SMPTE 296M.
1080p
1920×1080
1888×1062
(干净画框)
2,001,280 2.0 16:9 1:1 Used for 1125-line video with faster artifact/overscan compensation, as defined in SMPTE 274M.
1080i
1920×1080
1440×1080
(HDCAM/HDV)
1,555,200 1.6 16:9 1.3:1 Used for anamorphic 1125-line video in the HDCAM and HDV formats introduced by Sony and defined (also as a luminance subsampling matrix) in SMPTE D11.