Tema: Re: 600 tvl kamera ir 300 tvl lcd
Autorius: Levas
Data: 2013-11-20 19:35:49
rodys, nes kamera yra 625i max, o telikas yra max 300p.

O kamera kuri 700 tvlines negali egzistuoti kaip SDTV irenginys. Tai 
marketingas..

625-line analogue video contains 575 active video lines[12] (this 
includes two half lines). When the half lines are rounded up to whole 
lines for ease of digital representation, this gives 576 lines, which is 
also the nearest mod(16) value to 575. To maintain the same picture 
aspect ratio, the number of active pixels could be increased to 703.2, 
which can be rounded up to 704.
525-line analogue video contains 485 active video lines[11] (this 
include two half lines, though typically only 483 picture lines are 
present due to Closed Captions data taking up the first "active picture" 
line on each field). The nearest mod(16) value is 480. To maintain the 
same picture aspect ratio, the number of active pixels could be 
decreased to 706.2, which can be rounded down to 704 for mod(16).


On 2013.11.20 19:09, Ai... wrote:
> Sveiki,
>
> ar rodys lcd monitoriukas su 300 tv liniju kameros, kuri turi 600-700 tv
> liniju, vaizda?

-- 
Bye, Levas

--
http://www.vabolis.lt