Blu-ray is not limited by a narrow but essential to combine these two formats to both high definition and progressive signal: 1080p. So far so good but to complicate things, the 1080p, in turn, in different form. The early Blu-ray players always sent out in 1080p 60Hz which is synonymous with 60 frames per second. The reason for this is that the old TV format NTSC works great with 60Hz and the TV then just accept the standard of beyond 50Hz to PAL system in Europe uses. Now this is really not a problem when talking about sending TV produced in just 50 or 60Hz, and therefore can be reproduced with proper frequency on any picture viewer.
Monday, January 10, 2011
Juddret back in 3D
To understand what judder is and how it happens, we must start from the beginning. When Blu-ray aspect ratio was in the news a few years ago was talk much about the resolution, which can easily be defined as the number of pixels that make up an image. Most people understand that the resolution is directly correlated to image quality, although many other factors also are involved. Today we can receive HDTV via satellite, for example. The resolution is then 720p or 1080i. There are two formats with individual strengths and weaknesses. 1080i offers the higher resolution but is interlaced, which may cause less good quality in fast moving. For sports and similar preferred because many 720p is a progressive format in which all lines are updated in one go.
Blu-ray is not limited by a narrow but essential to combine these two formats to both high definition and progressive signal: 1080p. So far so good but to complicate things, the 1080p, in turn, in different form. The early Blu-ray players always sent out in 1080p 60Hz which is synonymous with 60 frames per second. The reason for this is that the old TV format NTSC works great with 60Hz and the TV then just accept the standard of beyond 50Hz to PAL system in Europe uses. Now this is really not a problem when talking about sending TV produced in just 50 or 60Hz, and therefore can be reproduced with proper frequency on any picture viewer.
Blu-ray is not limited by a narrow but essential to combine these two formats to both high definition and progressive signal: 1080p. So far so good but to complicate things, the 1080p, in turn, in different form. The early Blu-ray players always sent out in 1080p 60Hz which is synonymous with 60 frames per second. The reason for this is that the old TV format NTSC works great with 60Hz and the TV then just accept the standard of beyond 50Hz to PAL system in Europe uses. Now this is really not a problem when talking about sending TV produced in just 50 or 60Hz, and therefore can be reproduced with proper frequency on any picture viewer.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment