720p vs. 1080i - Blu-ray Forum

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720p vs. 1080i

06-16-2010, 08:28 PM

radagast

Blu-ray Samurai

Member since:May 2007

Location:Indianapolis

Quote:

Originally Posted by McGarnigal

With 720progressive you are getting 720 lines of resolution continuously. With 1080interlaced, you are seeing 540 lines of resolution, two sets of 540 lines are taking turns appearing on your screen, but at a rate too fast for the human eye to discern the switch. 720 lines > 540 lines. A lot of tv channels are 1080i, as well as crt hd tvs are capable of native 1080i, but not 720p. Hd video (not film) looks very nice in 1080i as well.

The problem is you need to take the how the eyes and brain see and interpret data. Continuously at what speed? And by the time the human brain has processed visual data, how many lines of resolution are perceived?

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