【转】电视图像标准
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 |
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; |
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. |