RE: Re: Geovision questions

["Paul Gale" <groups@xxxxxxxxxxxxxxxx>]

I used to do this but bought the DSP card for a number of reasons:

1) The video out on some video cards isn't very good
2) The full screen view on the standard Geovision PC ISN'T real time
(25fps=
) - speed depends on rated fps of the card, spread over the number of
video=
feeds you are displaying. In my situation this was typically 4-5 fps. It's=
OK but not smooth. The DSP card provides 25fps video out on the composite =
connector AND the Geovision PC by using the graphics card overlay surface.
3) Depending on how your PC is setup, you need to keep the screen
fullscree=
n. If you have any popups etc (like for auto updates), this will mean
havin=
g to go to the PC and clearing them. I often performed maintenance or used
=
the log viewer on the Geovision PC and forgot to switch back to full
screen=
. A PITA when next wanting to view the feeds from a TV etc.
4) Controlling the layout of the screen i.e. which cameras and layout type
=
- 1 cam, matrix etc - has to be done at the Geovision PC. I tried doing
thi=
s remotely with Girder but the weird way in which the Geovision software
ha=
ndles keyboard commands makes this unreliable. However, the DSP card is
sim=
ilar but does have an app that you can use to change the layout. You could
=
also get the IR controller and do it this way I guess.


Paul.

> -----Original Message-----
> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
> noel_pilot
> Sent: 21 August 2005 03:15
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] Re: Geovision questions
>=20
> From the cctv guide that is in the articles section, could you not use
> a graphics card with a tvout socket and hook that into a modulator for
> house wide tv viewing?
> I don't have my geovision system as yet but I assume the main desktop
> window shows live full motion footage dependent on your settings on
> the geovisions systems monitor???
>=20
>=20
>=20
> --- In ukha_d@xxxxxxx, "Geraint Williams"
<aclcsc@y...> wrote:
> > On this question of real time streaming, I was thinking that
maybe
> > the GV-DSP card would be suited, and then the outputs fed into a
> > modulator so that the cameras could be viewed realtime on
television
> > sets around the house rather than just PC's.
> >
> > If this is the case, then my problem would be that the GV650 I
have
> > has the 4 BNCs on board and then the rest need to be connected to
the
> > daughterboard via the IDE cable, but if i use a GV-DSP, then that
too
> > also uses the IDE connector and would appear i have two choices :
> >
> > 1) only use max 4 cameras plus GV-DSP card and can send modulated
> > output around tv system
> >
> > 2) use GV650 daughterboard and have upto 8 cameras, but no way of
> > linking in the GV-DSP card and therefore more restricted to pc's
> > being able to view.
> >
> >
> > I also have a nice Media Centre PC, and unsure best way to have
that
> > access the cameras, preferably with control also.
> > The GV650 is not in this machine, and as i haven't used
remoteview
> > yet I'm not sure if this also has PTZ control available.
> > I really would of wanted as near to 25fps viewing from tv's or
local
> > LAN machines.
> >
> > I'm up in loft running cables as we speak to node0. Way too hot
for
> > loft work ;)
> >
> > thoughts ?
> >
> > Cheers
> > Geraint.
> >
> >
> > --- In ukha_d@xxxxxxx, "Paul Gale" <groups@s...>
wrote:
> > > Not sure about the termination - they don't have any
physical
> > terminators.
> > >
> > > You can stream over the LAN in a number of ways. The first
is using
> > the web viewer but this isn't in real time - but fairly quick.
The
> > second is to use the RemoteView LAN application. This is again
fairly
> > quick but I don't think it's 25fps - certainly not with several
> > cameras running. I think it all comes down to how many cameras
you
> > are monitoring at once and how many are being monitored by the
card
> > (for motion detection recording). The biggest factor is the card
and
> > how many frames it's capable of dealing with.
> > >
> > > Paul.
> > >
> > > > -----Original Message-----
> > > > From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On
> > Behalf Of
> > > > Richard Malcolm-Smith
> > > > Sent: 20 August 2005 07:58
> > > > To: ukha_d@xxxxxxx
> > > > Subject: [ukha_d] Geovision questions
> > > >
> > > > Few Q's on this as the flakey webcam software on the
BT878 card
> > is getting
> > > > on my
> > > > nerves here.
> > > >
> > > > Do the cards have selectable termination so I can look
the video
> > thru to
> > > > another
> > > > device as well? (I lifted the 75=CE=A9 resistor from my
BT878 card =
so
> > I could)
> > > > - I
> > > > want to feed the cams to a modulator too.
> > > >
> > > > Also, can I stream from the geovision machine over the
lan to
> > another
> > > > computer
> > > > at good quality in real time (real time as in no
perceviable
> > delay so
> > > > lipsync is
> > > > still ok when talking on the phone to the person at the
camera)
> > > >
> > > > Also, the major issue I have with the current setup is
that I
> > have to take
> > > > snaps
> > > > at a really low resolution otherwise I get interlacing
artifacts.
> > is there
> > > > either hardware or software deinterlace on the cards to
give
> > decent
> > > > quality?
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > > >
> > > >
> > > >
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