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CCTV Picture Quality
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| Tomislav |
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Posts: 6
Joined: 03 Dec 2007
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Posted: Wed Dec 05, 2007 4:06 am
Post subject: CCTV Picture Quality
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Dear All,
I have installed in my work place CCTV system with 1/3 Sony cameras and I have Standalone DVR but the quality is really bad, it the people are little bit far always you can not recognize their face. Is there any way that I can improve that? especially during the night..
Thank you,
Tomislav
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| CollinR |
Moderator
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Posts: 1697
Joined: 25 Nov 2005
Location: Oklahoma, US
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Posted: Wed Dec 05, 2007 10:11 am
Post subject:
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| Tomislav |
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Posts: 6
Joined: 03 Dec 2007
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Posted: Wed Dec 05, 2007 10:25 am
Post subject: Part Numbers
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Thank you for a reply, part numbers are below.
YK 210 Z, YK-2E00, YK-476ZM3, YK-2J15, YK-2G49L, YK-2G57VF3.
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| RickA |
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Posts: 806
Joined: 28 Sep 2007
Location: Kentucky
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Posted: Thu Dec 06, 2007 3:45 pm
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Quite a mixture of cameras, part of them are 1/4" ccd and 1/3" ccd with zoom camera and PTZ camera, IR camera and space dome. Looks to be all Yoko cameras. Have not used any of these, but the ones I have used have been good.
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Pegasus CCTV Tech support Rick www.pegasuscctv.com
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| mr.surveillance |
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Posts: 117
Joined: 10 Apr 2007
Location: Alameda, Ca
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Posted: Fri Dec 07, 2007 5:03 am
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I havent used these models but have sold & installed Yoko cameras in the past and they were excellent performers.
Have you tried connecting the cameras directly to the monitor to see if it is the cameras or the DVR. What kind of cables are you using, plug & play, RG59 siamese or ?
Do you have adequate lighting? Have you tried adjusting the lenses?
Wide angle lenses will have less detail unless what you are watching is close. If you use tighter lenses you will get better detail but your coverage area will be decreased. Does your DVR have camera adjustments? What kind of DVR do you have?
Some of the budget mpeg4 DVR'S I've tested have had terrible video from live and worse from playback.
One way or another, you pay for what you get.
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| Tomislav |
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Posts: 6
Joined: 03 Dec 2007
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Posted: Fri Oct 17, 2008 9:24 am
Post subject: picture quality
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Dear All, thanks for your reply but I gave up for now.
I have one another question?
Is there is a software which can change the image and make it much better, that it can also magnify the details in that image. It is a professional software but I can not find it anywhere? Many people say it is not possible but I am sure there is something like this. Also I heard that it is used by military or governments.
Do you know maybe anything about it?
Thanks a lot,
Tomislav
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| Lolo Wolf |
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Posts: 426
Joined: 18 Jan 2007
Location: Northwest Montana
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Posted: Fri Oct 17, 2008 10:22 am
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There are several products and services offered in this market check out VF Pro 3.0 www.salientstills.com/products/index.html Many of these products are out of the reach of most DIY or resi-system builders by design or cost however you must consider that preservation of the original file (footage) is very important in the legal aspects of evidence. Even a program such as Photoshop CS3 allows for non-destructive editing with the implication of smart filters and enhancement for example working with shadow/highlights etc.....for the most part I would consider that the original install- system build- one should strive for the best overall quality before having to rely on forensic editing after the fact although the gap is shrinking for sure between science and fiction in the technology markets with the new products and software being developed. Many of the software programs today (DVR-PC etc) have differnt levels of pic enhancement and control already to a certain degree.
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| Soundy |
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Posts: 304
Joined: 23 Feb 2006
Location: The Burbs of Vancouver
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Posted: Sun Oct 19, 2008 4:00 am
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For what that type of software costs, you'd be better off to go with megapixel IP cameras and just get better quality right from the start. Advanced software may be able to do impressive things with the image, but they're still generating data that doesn't exist in the image - better to simply get all that data in the first place.
The main part of your problem is likely that your DVR is recording at low resolution, such as 320x240; some even default to 160x120. Bump that up to the maximum, likely 640x480 or 720x480, and it will help a lot.
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LPS Loss Prevention Systems - Maple Ridge, BC
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| Thomas |
Moderator
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Posts: 2102
Joined: 17 May 2004
Location: Houston, TX
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Posted: Sun Oct 19, 2008 4:10 pm
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| Lolo Wolf wrote: |
| There are several products and services offered in this market check out VF Pro 3.0 www.salientstills.com/products/index.html Many of these products are out of the reach of most DIY or resi-system builders by design or cost however you must consider that preservation of the original file (footage) is very important in the legal aspects of evidence. Even a program such as Photoshop CS3 allows for non-destructive editing with the implication of smart filters and enhancement for example working with shadow/highlights etc.....for the most part I would consider that the original install- system build- one should strive for the best overall quality before having to rely on forensic editing after the fact although the gap is shrinking for sure between science and fiction in the technology markets with the new products and software being developed. Many of the software programs today (DVR-PC etc) have differnt levels of pic enhancement and control already to a certain degree. |
Please be aware that the gain from such software is extremely limited. You will never achieve what you see on CSI. Generally the software does one of two things. It applies a sharpening filter. It's a way of tricking the eye to make it easier to discriminate among objects. The other method is to compare pixels and attempt to use small differences in pixels to create a slightly better image. The downside to this method is that it doesn't work with MPEG-4 codecs at all.
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Thomas
Sales Support
Video Insight
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| Lolo Wolf |
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Posts: 426
Joined: 18 Jan 2007
Location: Northwest Montana
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Posted: Sun Oct 19, 2008 6:42 pm
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Hello Thomas, I Agree to your comment however my response was directed to the original poster as to the existence of such "forensic" type products and I stated to the poster in my respose:"I would consider that the original install- system build- one should strive for the best overall quality before having to rely on forensic editing" Regards
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| Thomas |
Moderator
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Posts: 2102
Joined: 17 May 2004
Location: Houston, TX
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Posted: Sun Oct 19, 2008 10:37 pm
Post subject:
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| Lolo Wolf wrote: |
| Hello Thomas, I Agree to your comment however my response was directed to the original poster as to the existence of such "forensic" type products and I stated to the poster in my respose:"I would consider that the original install- system build- one should strive for the best overall quality before having to rely on forensic editing" Regards |
I clicked on the wrong post for quoting. I wasn't disagreeing. My apologizes.
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Thomas
Sales Support
Video Insight
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| Lolo Wolf |
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Posts: 426
Joined: 18 Jan 2007
Location: Northwest Montana
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Posted: Sun Oct 19, 2008 10:42 pm
Post subject:
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| Tomislav |
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Posts: 6
Joined: 03 Dec 2007
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Posted: Mon Oct 20, 2008 7:33 am
Post subject:
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Thanks for all comments Wolf, Soundy and Thomas . The problem with using better equipment is/was in budget so I am stuck with what I have but when I need to pull out some image with more details I am stuck. I am not able to provide them to my organization due to low resolution.
I tried to download VF Pro but when they send me the user and pass it didn't work. I will try to contact them again.
Wolf did you try it?
I had to have 1 month recording and I think the cameras are the main issue here that is also one reason why the resolution is not good I tried to increase it but I do not achieve the recording that I need.
Also I started with CCTV a year ago so I still have a long way to go.
Last edited by Tomislav on Mon Oct 20, 2008 7:40 am; edited 1 time in total
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| Soundy |
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Posts: 304
Joined: 23 Feb 2006
Location: The Burbs of Vancouver
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Posted: Mon Oct 20, 2008 9:25 am
Post subject:
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You simply may not be able to do what you want with the equipment/budget you have... that's a problem we all run into, the people paying for it want the kind of things they see in the movies and on TV, and they think they can get it all for next to nothing... and then they get upset when you tell them they'll have to spend more money just to get something marginally acceptable.
You didn't list the make/model of your DVR - have you looked into upgrading its storage space to allow you to increase your recording quality and still keep the desired 30 days? What other adjustments have you made to the record settings? You may be able to reduce the framerates, or go from constant to motion-detect recording, to save some space while increasing resolution. More details on your complete record settings would help as well.
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LPS Loss Prevention Systems - Maple Ridge, BC
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| Tomislav |
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Posts: 6
Joined: 03 Dec 2007
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Posted: Mon Oct 20, 2008 9:54 am
Post subject:
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Thanks Soundy, I have a PM 16 channel DVR PMR 16, I am not sure which brand it is also I will for sure check the storage as well.
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