Knowledge (XXG)

Standard-definition television

Source ๐Ÿ“

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The pixel aspect ratio is the same for 720- and 704-pixel resolutions because the visible image (be it 4:3 or 16:9) is contained in the center 704 horizontal pixels of the digital frame. In the case of a digital video line having 720 horizontal pixels (including horizontal blanking), only the center
536:. Only 704 center pixels contain the actual image and 16 pixels are reserved for horizontal blanking, though a number of broadcasters fill the whole 720 frames. The display ratio for broadcast widescreen is commonly 16:9 (pixel aspect ratio of 40:33 for 551:
standard) for every line of the image. The display and pixel aspect ratio is generally not required with the line height defining the aspect. For widescreen 16:9, 360 lines define a widescreen image and for traditional 4:3, 480 lines define an image.
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associated with analog systems. However, if the reception has interference or is poor, where the error correction cannot compensate one will encounter various other artifacts such as image freezing, stuttering, or dropouts from missing
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compliance, an SDTV broadcast image is scaled to 720 pixels wide for every 480 NTSC (or 576 PAL) lines of the image with the amount of non-proportional line scaling dependent on either the display or
62: 305:, with the transition occurring between the mid-1990s and late-2000s depending on the region. Older programs with a 4:3 aspect ratio are broadcast with 1839: 1763: 1707: 1666: 2096: 1095: 769: 1294: 547:
An SDTV image outside the constraints of the SMPTE standards requires no non-proportional scaling with 640 pixels (defined by the adopted IBM
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that switches the display to 4:3. Some broadcasters prefer to reduce the horizontal resolution by anamorphically scaling the video into a
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In other parts of the world that used the PAL or SECAM color systems, digital standard-definition television is now usually shown with a
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704 pixels contain the actual 4:3 or 16:9 image, and the 8-pixel-wide stripes on either side are called
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and should be discarded when displaying the image. Nominal analog blanking should not be confused with
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SDTV resolution by nation: for historical reasons, different countries use either
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SDTV originated from the need for a standard to digitize analog TV (defined in
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lines of resolution, derived from the European-developed
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In North America, digital SDTV is broadcast in the same
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Digital TV with similar definition to analog broadcasts
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Standards that support digital SDTV broadcast include
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for the scaling of various kinds of SDTV video lines
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The last two were originally developed for 8: 153:as their standard-definition picture format 2011: 1504: 1132: 1123: 1112: 1096: 1082: 1074: 770: 756: 748: 540:); the display ratio for a traditional or 129:Learn how and when to remove this message 1984: 1982: 320: 1966: 614:"Standard definition television (SDTV)" 602: 1976:Also used in China's DVB-S/S2 network. 203:Digital SDTV broadcast eliminates the 1972: 1970: 986: 874: 796: 793: 659: 657: 7: 694: 692: 608: 606: 67:adding citations to reliable sources 743:Programmer's Guide to Video Systems 25: 704:Federal Communications Commission 562: 78:"Standard-definition television" 43: 54:needs additional citations for 580: โ€“ Digital radio standard 251:The two SDTV signal types are 158:Standard-definition television 1: 1481:Field-sequential color system 188:used when it was introduced. 2061:Reverse Standards Conversion 584:Moving Picture Experts Group 333:Display aspect ratio (DAR) 288:4:3 fullscreen aspect ratio 216:or blockiness from missing 192:History and characteristics 2159: 578:Digital Audio Broadcasting 31: 2021: 2010: 1962: 1122: 1111: 1059: 1056: 1053: 1044: 1009: 1006: 1003: 960: 957: 946: 941: 915: 906: 891: 852: 849: 842: 829: 807: 804: 799: 779:Digital video resolutions 487: 474: 469: 446: 433: 428: 405: 392: 387: 364: 351: 346: 342:After horizontal scaling 339:Pixel aspect ratio (PAR) 18:Standard-definition video 186:analog broadcast systems 1105:Broadcast video formats 515:nominal analog blanking 2071:Television transmitter 290:as NTSC signals, with 154: 2143:Television technology 2133:Broadcast engineering 2056:MPEG transport stream 1883:MPEG-1 Audio Layer II 1446:Mechanical television 1354:Zweikanalton (A2/IGR) 279:are 25, 29.97 and 30 144: 2091:Widescreen signaling 2066:Standards conversion 2051:Moving image formats 808:Progressive (frames) 294:content often being 63:improve this article 2046:Display motion blur 805:Interlaced (fields) 519:horizontal blanking 483:horizontal blanking 442:horizontal blanking 401:horizontal blanking 360:horizontal blanking 326: 323:Pixel aspect ratios 178:enhanced definition 166:standard definition 34:Shandong Television 2128:Digital television 2097:Analogue TV Topics 1026:24, 30, 60; 25, 50 1011:24, 30, 60; 25, 50 797:Definition (lines) 722:"What means 576i?" 665:"What means 480i?" 642:siliconimaging.com 534:pixel aspect ratio 321: 317:Pixel aspect ratio 155: 2110: 2109: 2106: 2105: 2006: 2005: 2002: 2001: 1998: 1997: 1888:MPEG Multichannel 1494: 1493: 1071: 1070: 1066: 1065: 1031: 1030: 971: 970: 926: 925: 859: 858: 812: 811: 570:Television portal 510: 509: 303:16:9 aspect ratio 281:frames per second 139: 138: 131: 113: 16:(Redirected from 2150: 2086:Video processing 2016:Technical issues 2012: 1989: 1986: 1977: 1974: 1505: 1237:(Color systems: 1165:(Color systems: 1133: 1124: 1113: 1098: 1091: 1084: 1075: 1042: 1041: 984: 983: 939: 938: 872: 871: 827: 826: 791: 790: 772: 765: 758: 749: 730: 729: 718: 712: 711: 710:on Sep 29, 2008. 706:. Archived from 696: 687: 686: 679: 673: 672: 661: 652: 651: 649: 648: 634: 628: 627: 625: 624: 618:ATSC: NextGen TV 610: 572: 567: 566: 506: 500: 493: 480: 465: 459: 452: 439: 424: 418: 411: 398: 383: 377: 370: 357: 327: 134: 127: 123: 120: 114: 112: 71: 47: 39: 21: 2158: 2157: 2153: 2152: 2151: 2149: 2148: 2147: 2113: 2112: 2111: 2102: 2081:Video on demand 2026:14:9 compromise 2017: 1994: 1993: 1992: 1987: 1980: 1975: 1968: 1958: 1917: 1913:MPEG-H 3D Audio 1844: 1806: 1788: 1735: 1717: 1694: 1676: 1631: 1545: 1490: 1429: 1358: 1315: 1299: 1283: 1261: 1189: 1149: 1118: 1107: 1102: 1072: 1067: 1032: 978: 972: 933: 927: 866: 860: 819: 813: 781: 776: 739: 734: 733: 720: 719: 715: 698: 697: 690: 681: 680: 676: 663: 662: 655: 646: 644: 636: 635: 631: 622: 620: 612: 611: 604: 599: 568: 561: 558: 504: 498: 491: 478: 463: 457: 450: 437: 422: 416: 409: 396: 381: 375: 368: 355: 319: 249: 194: 135: 124: 118: 115: 72: 70: 60: 48: 37: 28: 23: 22: 15: 12: 11: 5: 2156: 2154: 2146: 2145: 2140: 2135: 2130: 2125: 2115: 2114: 2108: 2107: 2104: 2103: 2101: 2100: 2093: 2088: 2083: 2078: 2073: 2068: 2063: 2058: 2053: 2048: 2043: 2036:Digital cinema 2033: 2031:Broadcast-safe 2028: 2022: 2019: 2018: 2015: 2008: 2007: 2004: 2003: 2000: 1999: 1996: 1995: 1991: 1990: 1978: 1965: 1964: 1963: 1960: 1959: 1957: 1956: 1951: 1946: 1941: 1936: 1934:Broadcast flag 1931: 1925: 1923: 1922:Hidden signals 1919: 1918: 1916: 1915: 1910: 1905: 1900: 1895: 1890: 1885: 1880: 1875: 1870: 1865: 1854: 1852: 1846: 1845: 1843: 1842: 1837: 1832: 1827: 1822: 1816: 1814: 1808: 1807: 1805: 1804: 1798: 1796: 1790: 1789: 1787: 1786: 1781: 1776: 1771: 1766: 1761: 1756: 1751: 1745: 1743: 1737: 1736: 1734: 1733: 1727: 1725: 1719: 1718: 1716: 1715: 1710: 1704: 1702: 1696: 1695: 1693: 1692: 1686: 1684: 1678: 1677: 1675: 1674: 1669: 1664: 1659: 1658: 1657: 1647: 1641: 1639: 1633: 1632: 1630: 1629: 1628: 1627: 1622: 1612: 1611: 1610: 1605: 1595: 1594: 1593: 1588: 1578: 1577: 1576: 1571: 1566: 1555: 1553: 1547: 1546: 1544: 1543: 1542: 1541: 1531: 1530: 1529: 1524: 1513: 1511: 1502: 1496: 1495: 1492: 1491: 1489: 1488: 1483: 1478: 1473: 1468: 1463: 1458: 1453: 1448: 1443: 1437: 1435: 1431: 1430: 1428: 1427: 1422: 1417: 1412: 1407: 1402: 1397: 1392: 1387: 1382: 1377: 1372: 1366: 1364: 1363:Hidden signals 1360: 1359: 1357: 1356: 1351: 1349:Sound-in-Syncs 1346: 1341: 1336: 1331: 1325: 1323: 1317: 1316: 1314: 1313: 1307: 1305: 1301: 1300: 1298: 1297: 1291: 1289: 1285: 1284: 1282: 1281: 1271: 1269: 1263: 1262: 1260: 1259: 1254: 1199: 1197: 1191: 1190: 1188: 1187: 1182: 1159: 1157: 1151: 1150: 1148: 1147: 1141: 1139: 1130: 1120: 1119: 1116: 1109: 1108: 1103: 1101: 1100: 1093: 1086: 1078: 1069: 1068: 1064: 1063: 1058: 1055: 1052: 1040: 1038: 1034: 1033: 1029: 1028: 1023: 1018: 1014: 1013: 1008: 1005: 1002: 982: 980: 974: 973: 969: 968: 959: 956: 945: 937: 935: 929: 928: 924: 923: 914: 905: 890: 870: 868: 862: 861: 857: 856: 851: 848: 841: 825: 823: 815: 814: 810: 809: 806: 802: 801: 798: 795: 794:Usage examples 789: 787: 783: 782: 777: 775: 774: 767: 760: 752: 746: 745: 738: 737:External links 735: 732: 731: 713: 688: 674: 653: 629: 601: 600: 598: 595: 594: 593: 587: 581: 574: 573: 557: 554: 508: 507: 502: 495: 494: 489: 486: 476: 473: 467: 466: 461: 454: 453: 448: 445: 435: 432: 426: 425: 420: 413: 412: 407: 404: 394: 391: 385: 384: 379: 372: 371: 366: 363: 353: 350: 344: 343: 340: 337: 334: 331: 318: 315: 275:system). SDTV 267:systems), and 248: 245: 193: 190: 137: 136: 51: 49: 42: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 2155: 2144: 2141: 2139: 2136: 2134: 2131: 2129: 2126: 2124: 2121: 2120: 2118: 2098: 2094: 2092: 2089: 2087: 2084: 2082: 2079: 2077: 2074: 2072: 2069: 2067: 2064: 2062: 2059: 2057: 2054: 2052: 2049: 2047: 2044: 2041: 2037: 2034: 2032: 2029: 2027: 2024: 2023: 2020: 2013: 2009: 1985: 1983: 1979: 1973: 1971: 1967: 1961: 1955: 1952: 1950: 1947: 1945: 1942: 1940: 1937: 1935: 1932: 1930: 1927: 1926: 1924: 1920: 1914: 1911: 1909: 1906: 1904: 1901: 1899: 1896: 1894: 1891: 1889: 1886: 1884: 1881: 1879: 1876: 1874: 1871: 1869: 1866: 1863: 1859: 1856: 1855: 1853: 1851: 1847: 1841: 1838: 1836: 1833: 1831: 1828: 1826: 1823: 1821: 1818: 1817: 1815: 1813: 1809: 1803: 1800: 1799: 1797: 1795: 1791: 1785: 1782: 1780: 1777: 1775: 1772: 1770: 1767: 1765: 1762: 1760: 1757: 1755: 1752: 1750: 1747: 1746: 1744: 1742: 1738: 1732: 1729: 1728: 1726: 1724: 1723:MPEG-4 Visual 1720: 1714: 1711: 1709: 1706: 1705: 1703: 1701: 1697: 1691: 1688: 1687: 1685: 1683: 1679: 1673: 1670: 1668: 1665: 1663: 1660: 1656: 1653: 1652: 1651: 1648: 1646: 1643: 1642: 1640: 1638: 1634: 1626: 1623: 1621: 1618: 1617: 1616: 1613: 1609: 1606: 1604: 1601: 1600: 1599: 1596: 1592: 1589: 1587: 1584: 1583: 1582: 1579: 1575: 1572: 1570: 1567: 1565: 1562: 1561: 1560: 1557: 1556: 1554: 1552: 1548: 1540: 1537: 1536: 1535: 1532: 1528: 1525: 1523: 1520: 1519: 1518: 1515: 1514: 1512: 1510: 1506: 1503: 1501: 1497: 1487: 1484: 1482: 1479: 1477: 1474: 1472: 1469: 1467: 1464: 1462: 1459: 1457: 1454: 1452: 1449: 1447: 1444: 1442: 1439: 1438: 1436: 1432: 1426: 1423: 1421: 1418: 1416: 1413: 1411: 1408: 1406: 1403: 1401: 1398: 1396: 1393: 1391: 1388: 1386: 1383: 1381: 1378: 1376: 1373: 1371: 1368: 1367: 1365: 1361: 1355: 1352: 1350: 1347: 1345: 1342: 1340: 1337: 1335: 1332: 1330: 1327: 1326: 1324: 1322: 1318: 1312: 1309: 1308: 1306: 1302: 1296: 1293: 1292: 1290: 1286: 1280: 1276: 1273: 1272: 1270: 1268: 1264: 1258: 1255: 1252: 1248: 1244: 1240: 1236: 1232: 1228: 1224: 1220: 1216: 1212: 1208: 1204: 1201: 1200: 1198: 1196: 1192: 1186: 1183: 1180: 1176: 1172: 1168: 1164: 1161: 1160: 1158: 1156: 1152: 1146: 1143: 1142: 1140: 1138: 1134: 1131: 1129: 1125: 1121: 1114: 1110: 1106: 1099: 1094: 1092: 1087: 1085: 1080: 1079: 1076: 1062: 1051: 1047: 1043: 1039: 1035: 1027: 1024: 1022: 1019: 1016: 1015: 1012: 1001: 997: 993: 989: 985: 981: 975: 967: 963: 954: 950: 944: 940: 936: 930: 922: 918: 913: 909: 903: 899: 895: 889: 885: 881: 877: 873: 869: 863: 855: 846: 840: 836: 832: 828: 824: 822: 816: 803: 792: 788: 784: 780: 773: 768: 766: 761: 759: 754: 753: 750: 744: 741: 740: 736: 727: 726:Afterdawn.com 723: 717: 714: 709: 705: 701: 695: 693: 689: 684: 678: 675: 670: 669:afterdawn.com 666: 660: 658: 654: 643: 639: 633: 630: 619: 615: 609: 607: 603: 596: 591: 588: 585: 582: 579: 576: 575: 571: 565: 560: 555: 553: 550: 545: 543: 539: 535: 531: 526: 524: 520: 516: 503: 501:(full frame) 497: 496: 490: 484: 477: 472: 468: 462: 460:(full frame) 456: 455: 449: 443: 436: 431: 427: 421: 419:(full frame) 415: 414: 408: 402: 395: 390: 386: 380: 378:(full frame) 374: 373: 367: 361: 354: 349: 345: 341: 338: 335: 332: 330:Video format 329: 328: 324: 316: 314: 312: 308: 304: 299: 297: 293: 289: 284: 282: 278: 277:refresh rates 274: 270: 266: 262: 258: 254: 246: 244: 242: 238: 234: 230: 226: 221: 219: 215: 210: 206: 201: 199: 191: 189: 187: 183: 179: 175: 171: 167: 163: 159: 152: 148: 143: 133: 130: 122: 111: 108: 104: 101: 97: 94: 90: 87: 83: 80: โ€“  79: 75: 74:Find sources: 68: 64: 58: 57: 52:This article 50: 46: 41: 40: 35: 30: 19: 1637:MPEG-2 Video 1516: 1175:Clear-Vision 1061:60, 120, 180 875: 725: 716: 708:the original 703: 677: 668: 645:. Retrieved 641: 632: 621:. Retrieved 617: 546: 530:SMPTE 259M-C 527: 511: 300: 285: 250: 247:PAL and NTSC 241:multiplexing 222: 214:intra-frames 209:noisy images 202: 195: 181: 169: 165: 161: 157: 156: 125: 116: 106: 99: 92: 85: 73: 61:Please help 56:verification 53: 29: 2095:Templates ( 1812:MPEG-H HEVC 1551:Progressive 786:Designation 542:letterboxed 336:Resolution 218:macroblocks 2117:Categories 1939:Captioning 1741:MPEG-4 AVC 1509:Interlaced 1434:Historical 1370:Captioning 1329:BTSC (MTS) 1304:1250 lines 1288:1125 lines 1117:Television 1054:2160, 4320 1037:Ultra-high 1017:1080, 1440 947:480, 540 ( 932:Enhanced, 865:Standard, 854:24, 30; 25 843:240, 288 ( 647:2023-06-18 623:2023-06-18 597:References 538:anamorphic 505:1050โ€‰ร—โ€‰576 492:1024โ€‰ร—โ€‰576 296:center cut 292:widescreen 257:interlaced 255:(with 576 89:newspapers 2138:Broadband 2076:Test card 1749:ATSC A/72 1655:DVB 3D-TV 1267:819 lines 1195:625 lines 1155:525 lines 1137:405 lines 800:Rate (Hz) 499:720โ€‰ร—โ€‰576 485:cropped) 479:704โ€‰ร—โ€‰576 464:788โ€‰ร—โ€‰576 458:720โ€‰ร—โ€‰576 451:768โ€‰ร—โ€‰576 444:cropped) 438:704โ€‰ร—โ€‰576 423:873โ€‰ร—โ€‰480 417:720โ€‰ร—โ€‰480 410:854โ€‰ร—โ€‰480 403:cropped) 397:704โ€‰ร—โ€‰480 382:655โ€‰ร—โ€‰480 376:720โ€‰ร—โ€‰480 369:640โ€‰ร—โ€‰480 362:cropped) 356:704โ€‰ร—โ€‰480 311:pillarbox 119:June 2022 1988:Defunct. 1954:Teletext 1820:ATSC 3.0 1476:567-line 1471:455-line 1466:441-line 1461:375-line 1456:343-line 1451:180-line 1441:Pre-1940 1395:Teletext 1275:System E 1203:System B 1163:System M 1145:System A 951:), 576 ( 896:), 576 ( 590:Rec. 601 556:See also 523:overscan 205:ghosting 182:Standard 1835:ISDB-S3 1784:MobaHo! 1731:MobaHo! 1500:Digital 1247:PALplus 1050:UHD BRD 949:NTSC-HQ 934:HMP@HML 164:; also 103:scholar 1908:HE-AAC 1830:HD DMB 1375:CGMS-A 1311:HD-MAC 1171:NTSC-J 1128:Analog 1057:  1021:60; 50 1007:  996:HD DVD 977:High, 962:24, 30 958:  953:PAL-HQ 917:24, 30 850:  685:. ITU. 638:"HDTV" 488:16:11 447:12:11 406:40:33 365:10:11 307:a flag 231:, and 198:BT.601 105:  98:  91:  84:  76:  1850:Audio 1802:ABS-S 1774:SBTVD 1713:ABS-S 1672:ABS-S 1615:UHDTV 1608:1080p 1539:1080i 1339:NICAM 1321:Audio 1251:SECAM 1243:PAL-N 1185:B-MAC 1179:PAL-M 1046:UHDTV 979:MP@HL 902:SECAM 892:480 ( 867:MP@ML 821:MP@LL 818:Low, 475:16:9 393:16:9 265:SECAM 110:JSTOR 96:books 2123:ATSC 1944:CPCM 1898:LPCM 1868:AC-4 1858:AC-3 1840:DTMB 1794:AVS2 1779:1seg 1764:DTMB 1754:CMMB 1708:DTMB 1700:AVS+ 1690:CMMB 1667:DTMB 1662:ISDB 1645:ATSC 1603:720p 1598:HDTV 1591:576p 1586:480p 1581:EDTV 1574:288p 1569:240p 1564:1seg 1559:LDTV 1534:HDTV 1527:576i 1522:480i 1517:SDTV 1486:OSKM 1415:VITC 1405:VEIL 1334:EIAJ 1295:MUSE 1167:NTSC 988:HDTV 943:EDTV 894:NTSC 880:SVCD 876:SDTV 831:LDTV 528:For 471:576i 434:4:3 430:576i 389:480i 352:4:3 348:480i 273:NTSC 269:480i 263:and 253:576i 237:HDTV 233:ISDB 229:ATSC 207:and 174:high 162:SDTV 151:576i 147:480i 82:news 2040:DCI 1949:EPG 1929:AFD 1903:AAC 1893:PCM 1878:DRA 1873:DTS 1862:5.1 1825:DVB 1769:DVB 1759:DMB 1682:AVS 1650:DVB 1425:XDS 1420:WSS 1410:VIT 1400:VBI 1390:PDC 1385:GCR 1380:EPG 1344:SAP 1257:MAC 1239:PAL 1004:720 1000:HDV 898:PAL 884:DVD 845:SIF 839:HTV 835:VCD 549:VGA 517:or 261:PAL 225:DVB 176:or 168:or 149:or 65:by 2119:: 1981:^ 1969:^ 1625:8K 1620:4K 1277:, 1249:, 1245:, 1241:, 1233:, 1229:, 1225:, 1221:, 1217:, 1213:, 1209:, 1205:, 1177:, 1173:, 1169:, 1048:, 998:, 994:, 992:BD 990:, 966:25 964:; 921:25 919:; 912:50 910:; 908:60 888:DV 886:, 882:, 878:, 837:, 833:, 724:. 702:. 691:^ 667:. 656:^ 640:. 616:. 605:^ 313:. 298:. 243:. 227:, 180:. 170:SD 2099:) 2042:) 2038:( 1864:) 1860:( 1279:F 1253:) 1235:N 1231:L 1227:K 1223:I 1219:H 1215:G 1211:D 1207:C 1181:) 1097:e 1090:t 1083:v 955:) 904:) 900:/ 847:) 771:e 764:t 757:v 728:. 671:. 650:. 626:. 481:( 440:( 399:( 358:( 160:( 132:) 126:( 121:) 117:( 107:ยท 100:ยท 93:ยท 86:ยท 59:. 36:. 20:)

Index

Standard-definition video
Shandong Television

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480i
576i
high
enhanced definition
analog broadcast systems
BT.601
ghosting
noisy images
intra-frames
macroblocks
DVB
ATSC
ISDB
HDTV
multiplexing
576i

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