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Re: DVRs



FDR wrote:
> "J. Sloud" <jsloud@xxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
> news:bpuv42ldkhmd7m0glq2vbaer99i1m6edtg@xxxxxxxxxx
>
>>On Tue, 25 Apr 2006 02:15:00 GMT, "FDR"
>><_remove_spam_block_rzitka@xxxxxxxxxxx> wrote:
>>
>>
>>
>>>I'm trying to understand what someone means when they say to spend 2k to
>>>3k
>>>on a system vs. 1k for better picture quality.  When I asked that someone
>>>pointed out fps, but the rest was about ftp, e-mail, networking, etc.,
>>>which
>>>as far as I can see is not about picture quality, especially if I don't
>>>use
>>>it most of the time.
>>>
>>>I'm not trying to be disrespectful.  I sincerely want to know what the
>>>extra
>>>money gets you in picture quality so I can decide if it's worth it.  If it
>>>isn't I'd rather spend the money on cameras.
>>
>>Picture quality can refer to many things.  The most common refers to
>>the resolution displayed.  Is the image displayed at 1 CIF, 2 CIF, 4
>>CIF,  or D1?  The best DVRs combine high frame rates per channel with
>>high resolution.  A top quality DVR such as an AD Intellex Ultra may
>>be able to process 30 images per second for 16 cameras (480 IPS total)
>>at 2 CIF.  Compare these stats to the cheaper DVRs and you'll see the
>>difference.
>>--
>>NewsGuy.Com 30Gb $9.95 Carry Forward and On Demand Bandwidth
>
>
> What does CIF mean?
>
> CIF
Common Intermediate Format.
A standard size for images produced by low-resolution digital cameras
and video cameras. CIF images are 352 pixels wide and 288 pixels tall
(352 x 288).
CIF is larger than QCIF and QVGA, but smaller than VGA.



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