Person99
03-11-08, 01:52 PM
I'm trying to find out what the DVI can't do and what the HDP does really noticeably better.
I'm putting off a 1080p digital PJ for a bit longer as I'm not impressed with the LCD models and given that we use the theater about 250 hours per year, I'm too cheap to buy a really good looking 1080p PJ. So, I'm going to do one of two things:
1) Remount my CRT to do a pseudo-constant image area set up with a 2.05:1 screen.
2) Get a good 720p DLP projector and do a constant image height set up.
As an aside, I don't care about video deinterlacing of 1080i. Everything is going to be film sourced material at 1080i--please bear that in mind.
The CRT first. If I do CIA with a 2.05:1 screen, this is what I want to do:
CRT-1) Take 16:9 and 1.85:1 1080i/60 flim-source material and simply do frame rate conversion to 1080i/72 (I know I can do this--but does the HDP do it noticeably better?)
CRT-2) As an option--Scale those things in "CRT-1" to 1800x1080i/72.
CRT-3) Take a 2.35:1 or higher AR 1080i/60 flim-source material and remove the letterbox bars and vertically scale the 817 active lines to 1080i/72 (so have a vertically stretched 1080i like with a digital using an anamorphic lens.
CRT-4) As an Option do CRT-3 then zoom the picture 4%.
As an aside, the projectors geometry controls and memory blocks will be used to get the AR correct for 2.35:1 movies and to horizontally shrink 16:9 and 1.85:1 movies and to vertically expand them relative to 2.35:1 movies.
OK, now the 720p DLP:
DLP-1) Take 16:9 and 1.85:1 1080i/60 flim-source material and deinterlace, scale,and frame rate convert to 720p/48.
DLP-2) Take 2.35:1 or higher AR 1080i/60 flim-source material at 1080i/60 and remove the letterbox bars and deinterlace, scale and frame rate convert the 1920x817i/60 active image area to 1280x720p/48.
I know, the HDP will let me do 1080i/96 as well as input 1080p/24 which the DVI cannot--so those are two things for me to consider, but can the DVI do all of the above (if not which ones can't it do) and will an HDP do any noticeably better?
Thanks.
I'm putting off a 1080p digital PJ for a bit longer as I'm not impressed with the LCD models and given that we use the theater about 250 hours per year, I'm too cheap to buy a really good looking 1080p PJ. So, I'm going to do one of two things:
1) Remount my CRT to do a pseudo-constant image area set up with a 2.05:1 screen.
2) Get a good 720p DLP projector and do a constant image height set up.
As an aside, I don't care about video deinterlacing of 1080i. Everything is going to be film sourced material at 1080i--please bear that in mind.
The CRT first. If I do CIA with a 2.05:1 screen, this is what I want to do:
CRT-1) Take 16:9 and 1.85:1 1080i/60 flim-source material and simply do frame rate conversion to 1080i/72 (I know I can do this--but does the HDP do it noticeably better?)
CRT-2) As an option--Scale those things in "CRT-1" to 1800x1080i/72.
CRT-3) Take a 2.35:1 or higher AR 1080i/60 flim-source material and remove the letterbox bars and vertically scale the 817 active lines to 1080i/72 (so have a vertically stretched 1080i like with a digital using an anamorphic lens.
CRT-4) As an Option do CRT-3 then zoom the picture 4%.
As an aside, the projectors geometry controls and memory blocks will be used to get the AR correct for 2.35:1 movies and to horizontally shrink 16:9 and 1.85:1 movies and to vertically expand them relative to 2.35:1 movies.
OK, now the 720p DLP:
DLP-1) Take 16:9 and 1.85:1 1080i/60 flim-source material and deinterlace, scale,and frame rate convert to 720p/48.
DLP-2) Take 2.35:1 or higher AR 1080i/60 flim-source material at 1080i/60 and remove the letterbox bars and deinterlace, scale and frame rate convert the 1920x817i/60 active image area to 1280x720p/48.
I know, the HDP will let me do 1080i/96 as well as input 1080p/24 which the DVI cannot--so those are two things for me to consider, but can the DVI do all of the above (if not which ones can't it do) and will an HDP do any noticeably better?
Thanks.