A technologists view of HDV - Page 5 at DVinfo.net

Go Back   DV Info Net > High Definition Video Acquisition > General HD (720 / 1080) Acquisition

General HD (720 / 1080) Acquisition
Topics about HD production.

Thread Tools Search this Thread
Old February 11th, 2005, 09:08 AM   #61
Regular Crew
Join Date: Feb 2004
Location: San Francisco Bay Area, CA
Posts: 112
<<<-- Originally posted by Balazs Rozsa : when I go into a shop which has 100 Hz and normal TVs put next to each other, the 100Hz pictures look much softer. This is why I think converting to other formats from an interlaced format will not give too good results. And I think this is why they rarely put 100 Hz and normal TVs next to each other. -->>>
What you are saying may be true but the example is not the best. 100 Hz TV have cheap electronic in order to do the conversion. It is not a good conversion. In theory if you apply the right math any format could be converted in another format without visible degradation if the new format has enough BW and resolution . Still too often though we see scaling done with decimation and interlaced to progressive done taking away every other half field. Both tricks are followed by integration with some amount of low pass filtering. results are pretty bad.
Gabriele Sartori is offline   Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

(800) 223-2500
New York, NY

B&H Photo Video
(866) 521-7381
New York, NY

Texas Media Systems
(512) 440-1400
Austin, TX

Precision Camera
(800) 677-1023
Austin, TX

(800) 323-2325
Mineola, NY

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > High Definition Video Acquisition > General HD (720 / 1080) Acquisition

Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -6. The time now is 08:53 PM.

DV Info Net -- Real Names, Real People, Real Info!
1998-2018 The Digital Video Information Network