![]() This can cause a very subtle blurring effect to the naked eye when viewing fast moving video. So during each refresh only half of the pixels are up to date, and the other half is old by a microsecond. With interlace scan (1080i) your TV will take the 1080 lines of pixels and only refresh the even lines at one time, and the odd lines at one time. With progressive scan (1080p), your TV will refresh every single pixel every time it refreshes, which is commonly 60 times per second (or 60Hz). The quick answer is that 1080p is much better than 1080i. There is a big difference between 1080i and 1080p, but what is better? So a sample resolution would be 1080p30, or 1080p at 30 Hz. The Hz specification that goes along with that indicates how many times per second the video image refreshes. ![]() The 'i' in 1080i stands for 'interlace scan' and the 'p' in 1080p stands for 'progressive scan'. These days, the largest defintion available to consumers is 1920 x 1080 which is also referred to as 1080i or 1080p. This simply means that there are 1280 pixels if you counted them from left to right, and 720 pixels if you count from top to bottom, for a total of 921,600 viewable pixels. High Definition generally starts at 1280 x 720 (aka 720i or 720p) pixels and goes up from there. Pixels are the smallest parts that make up a full video picture. Resolution is simply a description of the number of pixels being viewed. ![]() When understanding high definition, the first step is to understand resolution, because where there's high resolution there is high definition.
0 Comments
Leave a Reply. |