1、 GYGY/T 272 2013 16:9 4:3 Safe areas for television images of 16:9 aspect ratio to display on the 4:3 aspect ratio screen ITU-R BT.1379-2:2007,Safe areas of wide-screen 16:9 and standard 4:3 aspect ratio productions to achieve a common format during a transition period to wide screen 16:9 broadcasti
2、ng,MOD 2013 - 11 - 25 2013 - 11- 25 GY/T 272 2013 I . II 1 . 1 2 . 1 3 . 1 4 . 2 . 3 GY/T 272 2013 II GB/T 1.1-2009 ITU-R BT.1379-2:2007 16:916:9 4:3 , ITU-R BT.1379-2:2007 3 2 SAC/TC 239 GY/T 272 2013 1 16:9 4:3 1 16:9 4:34:3 16:92 2.1 safe areas 2.2 action safe areas 2.3 graphics safe areas3 4:3 1
3、6:9 16:94:316:9 16:9 4:34 16:9 4:3 1 GY/T 272 2013 2 1 16:9 4:3 a % b % 16:9 4:3 3.5 15 3.3 5 17.5 6.7 a 16:9 3.5%5% 4:3 16:9 4:3b 16:9 15% 4:3 3.3%17.5% 4:3 6.7%,14:4:316:9 15%(2884:3 3.3%484:316:9192024014401344124816:9 17.5%(3364:3 6.7%96/2401 16:9 4:3 GY/T 272 2013 3 1 ITU-R BT.1379-2 Safe areas of wide-screen 16:9 and standard 4:3 aspect ratio productions to achieve a common format during a transition period to wide-screen 16:9 broadcasting 16:9 4:3 GY/T 272 2013 * 010 86093424 86092923 100866
