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Viviotek VS2403 Problems - jpg Image is "scrambled"


 
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sibiu
New Member


Joined: 12 Aug 2009
Posts: 3

PostPosted: Wed Aug 12, 2009 1:08 pm    Post subject: Viviotek VS2403 Problems - jpg Image is "scrambled" Reply with quote

Hello,

I needed an solution for 2 online webcams, the cameras were already in place, 2 x CCTV ( QSB550SR not very cheap at $366 each)

I chosed an videoserver from Vivotek, [url=http ://www.vivotek.com/products/model.php?video_server=vs2403]VS2403[/url] ($515), mainly for the features it has about accessing snapshots using direct URL like :

http ://IP/cgi-bin/video1.jpg?quality=5&size=3

and the posibility to send a snapshot using FTP every x seconds/minutes/hours...

The problem is that sometimes the images I see when I access directly one of the cameras (http ://IP/cgi-bin/video1.jpg?quality=5&size=3 or http://IP/cgi-bin/video2.jpg?quality=5&size=3) are like this :



I tried to get the images from 2 different places,
1. one of my Linux servers, where I created a script to get one image every 10 seconds (the transfer of the image from the video server to my linux server is taking about 7 seconds, for a 100kb image )

2. from my computer using direct link in browser, I get the same result, the image is corupted

Any ideea what I can do to solve this problem ? Any help is appreciated.

10x
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NCS Peter
Regular Member


Joined: 04 Nov 2009
Posts: 44

PostPosted: Wed Nov 11, 2009 8:45 pm    Post subject: Reply with quote

sibiu,

I can't say forsure by looking at the pictures you have provided but it appears that you may be having an analog video bounce back effect happening. This can happen if A) there is noise on the line or B) the video cable line has been split into more then one solid line.

With the first case you will have to isolate the source of any noise created on the line. This can be hard to do as it could come from a split in the cable, a power source to close to the line or some other issue to visable.

With the second case, if you have split the line you need to ensure that there are no open lines and that each line has a termination point. If an open video line exisits there can be a build up of video signals that only show "double" images over time and not right away.

Again, not sure if this is the issue you have encountered but I hope this helps.
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NCS Peter
Network Video Surveillance Consultant
http://www.networkcamerastore.com
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sibiu
New Member


Joined: 12 Aug 2009
Posts: 3

PostPosted: Tue Dec 15, 2009 5:50 pm    Post subject: Reply with quote

After more restarting of the unit and changed the way I'm getting the images from the video server to my web server (because of the poor internet connection of the location where the cameras are located I had to increase the time I'm getting the images to 10 seconds) now it seems ok.

I'm not very sure if the video server is capable to send simultaneous images from both cameras, i think here was the problem..
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NCS Peter
Regular Member


Joined: 04 Nov 2009
Posts: 44

PostPosted: Thu Dec 17, 2009 12:57 pm    Post subject: Reply with quote

That's interesting. It seems that the image files "collide" from a possible bottle neck either from the Internet Connection speed of from the video server directly. I'm glad you were able to at least resolve the issue though. Maybe to rule out that the issue lies with the video server, try only having one camera video srouce send images at your original time settings to see if the issue reappears.
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NCS Peter
Network Video Surveillance Consultant
http://www.networkcamerastore.com
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