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Is 720p and 1080i HD?


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I voted yes mainly due to the fact that they have been considered as HD by America and Australia + many others with HD.

Also some figures

SD is 720x576i (on a PC 1024x576). HD can be 576p but it's crap

720p HD is 1280x720 (pc resolution) (I hope thats right)

1080i HD is 1440x1080 (on a PC 1920x1080).

As the resolution is higher (and so is the bandwidth), the picture can give more resolution.

It's the same with digital cameras. A 3 megapixel digital camera is better than a 1 megapixel digital camera due to the higher resolution of the images produced.

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Wierd question!

BTW: 1280x720 isnt a "standard" PC resolution ("standard" PC resolutions are 4:3, 1280x720 is 16:9)

1080i is 1920x1080, but most (not all) stations/states have 1440x1080.

The last part of your reply will probably tempt the Kell-fanatics back into action!  :blink:

When I talk about the PC resolutions, I mean the resolution that TV is normally shown (in 16:9 AR) on PC's not the standard resolution. The PC resolution can also be called the non-transmitted resolution. The 4:3 style resoultions not in brackets (for those that don't know) are the transmitted resolutions.

720p Transmitted resolution: 1280x720 (Modified to reflect correct information. Remodified because I was an idiot).

And Santa, who are the Kell-fanatics?

Edited by kenneth
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Wierd question!

BTW: 1280x720 isnt a "standard" PC resolution ("standard" PC resolutions are 4:3, 1280x720 is 16:9)

1080i is 1920x1080, but most (not all) stations/states have 1440x1080.

The last part of your reply will probably tempt the Kell-fanatics back into action!  :blink:

When I talk about the PC resolutions, I mean the resolution that TV is normally shown (in 16:9 AR) on PC's not the standard resolution. The PC resolution can also be called the non-transmitted resolution. The 4:3 style resoultions not in brackets (for those that don't know) are the transmitted resolutions.

720p Transmitted resolution: 960x576

And Santa, who are the Kell-fanatics?

720p is broadcast as 1280x720. 1080i is suposed to be broadcast as 1920x1088 but some stations use 1440x1088 to try and improve quality at low bitrates.

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Wierd question!

BTW: 1280x720 isnt a "standard" PC resolution ("standard" PC resolutions are 4:3, 1280x720 is 16:9)

1080i is 1920x1080, but most (not all) stations/states have 1440x1080.

The last part of your reply will probably tempt the Kell-fanatics back into action!  :blink:

When I talk about the PC resolutions, I mean the resolution that TV is normally shown (in 16:9 AR) on PC's not the standard resolution. The PC resolution can also be called the non-transmitted resolution. The 4:3 style resoultions not in brackets (for those that don't know) are the transmitted resolutions.

720p Transmitted resolution: 960x576

And Santa, who are the Kell-fanatics?

720p is broadcast as 1280x720. 1080i is suposed to be broadcast as 1920x1088 but some stations use 1440x1088 to try and improve quality at low bitrates.

True. I am just copying the Australian transmitted resolutions.

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720p Transmitted resolution: 960x576

Huh,

720p = 1280 x 720.

I'm pretty sure that all the Digital TV formats are supposed to be square pixel.

Hence the pixel width divided by pixel height = 16/9.

The use of other pixel samples (eg 1440 x 1080) may well be due to the sampling limitations of HD cameras or VTRs, as well as reducing the transmitted data rate.

I have yet to do the tests I have promised myself, to see if the Sony HDCAM tape decks can resolve 1920 horizontal pixels.

Cheers

JB

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