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megapixel man

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Everything posted by megapixel man

  1. megapixel man

    Stadium surveilance

    Keep in mind that a surge protector protects equipment from strikes coming over the grid. If lightning directly strikes the camera ... poof!!!! Best, Christopher that was tongue in cheek. I'm not too worried about lightning strikes. I was a satellite installer (among other things) for >12 years. I saw maybe one get hit. Out of thousands. I don't think it's a threat. If I owned a stadium and I lost a $10K camera: BFD - I'd just replace it. JMHO, of course Maybe I'll start advertising "free lightning strike replacements on all our outdoor cameras" just to differentiate my co from everyone else. Insurance, as the pros here should know, is not to be taken lightly; it should be handled by a pro, just like your taxes should be handled (or combed over) by a CPA. I'm much more interested in the megapixel camera / DVR aspect of this thread. I'd love to sit in the "eagles nest" control room at one of my local stadiums & see some of these amazing cameras. I wonder, do they allow for digital PTZ at any time - that'd be cool.[/quote] Yes they do, you can have multiple viewing windows and tabs open from the same camera at different zoom levels showing various regions of interest at the same time on both live and recorded footage. "situational awareness and detail", you can also set these as saved views for instant retrevial, multiple system operators can do this at the same time. For applications like stadiums and large area surveillance you can use the Avigilon mapping interface to set up different regions of interest and zoom levels from the one camera as a map overlay, this allows for easy navigation of large systems and sites.
  2. megapixel man

    Stadium surveilance

    I know the question was directed at Rory, however I have done a few stadiums with the Avigilon System and done one for a 20,000 capacity, 12x 16MP cameras were used to achieve facial rec of everyone in the stands, and a bucket load cheaper and user friendly solution for them than the 500-600 standard res cameras it would take to acheive the same result. For these types of projects you can't think of the individual camera in terms of a comodity item $. the overall solution price and what it delivers is the key factor, including the life cycle cost (maintenance etc.....).
  3. megapixel man

    Name That Compression!!!

    10. Easy to pick when you zoom in on the image.
  4. megapixel man

    Avigilon Software

    Well done. Feel free to ask any questions via the forum or PM. Cheers
  5. Yes, Avigilon Control Centre NVMS, Client and Payer software all work on Win7 64 bit.
  6. megapixel man

    Friday Funny

    Not sure if this has been posted previously: http://www.youtube.com/user/MrZeddZZ
  7. megapixel man

    Avigilon H.264 Cameras

    here is the link for the box body Avigilon H.264 cameras. Integrated 5-85mm Lens. http://www.avigilon.com/products/cameras-video/hd-h264/
  8. megapixel man

    Avigilon H.264 Cameras

    Amirm, there is a tradeshow sample video clip available for download in the partner section of the web site.
  9. megapixel man

    Avigilon H.264 Cameras

    How did the zoom work? Does it need refocusing when you zoom in or does it work like a ptz? Sony's DH140 is quite nice but the zoom function is only usable when installing. Software driven optical zoom and auto focus are for set up only.
  10. megapixel man

    Avigilon H.264 Cameras

    yes, had a play with one already, very nice. They come in 4 different form factors in both and 720p and 1080p, fully ONVIF compliant.
  11. Sorry Wireguys, I meant with all cameras being Megapixel and 3MP +. What exacq is doing in that video is doable on most good VMS. I have done a 16 monitor control room with only 2 workstations, 8 1920x1080 monitors on each (6x 24" and 2x 52"), workstations had 2x Quad Head nVidia Cards and Dual Quad Core Xeon 3.2Ghz. And this system has over 250+ Cameras, very large MP resolutions, but non H.264. I have been speaking to some industry friends that have done some large number 5 Megapixel H.264 installs and they have been saying that they are limited in the number of cameras that they can stream to the workstation for live viewing. Just wanted to know if anyone else had experienced this. I just tested Exacq on 2 monitors with 96 cameras. 50 of them where various MP from 720P to 5MP from different manufactures with h.264. You will not have a problem with 30+ on one machine with Exacq. What cameras do you plan on using? Below is an Exacq case study with a 19 monitor video wall with 87 Stardot MP cameras. You might find it intresting http://www.exacq.com/blog/2010/04/08/heavy-metal-protection-an-installer-case-study/ thnx, Looks like they limited the workstations to around 2 monitors only in that case study, as they used 5x Dell Precissions to run the video wall.
  12. I'm interested to hear of peoples experience of streaming multiple numbers of 3Megapixel + H.264 cameras to a client workstation. Say 30+ over multiple monitors. Have you experienced any limitations on the number of these cameras that can be displayed similtaneously?
  13. Sorry Wireguys, I meant with all cameras being Megapixel and 3MP +. What exacq is doing in that video is doable on most good VMS. I have done a 16 monitor control room with only 2 workstations, 8 1920x1080 monitors on each (6x 24" and 2x 52"), workstations had 2x Quad Head nVidia Cards and Dual Quad Core Xeon 3.2Ghz. And this system has over 250+ Cameras, very large MP resolutions, but non H.264. I have been speaking to some industry friends that have done some large number 5 Megapixel H.264 installs and they have been saying that they are limited in the number of cameras that they can stream to the workstation for live viewing. Just wanted to know if anyone else had experienced this.
  14. Best to look at edge switches and a fibre backbone.
  15. megapixel man

    Arecont FAIL

    Wireguys, how would you go with that many Areconts in a control room environment? 1. How many Areconts at 2MP, 3MP or 5MP @ native res, low - medium compression (H.264) can you effectivley display on each monitor on a 2 monitor workstation? 2. Would you be able to stream and view all 30 effectivley on a workstation? If so, what VMS are you using? If not, what are the limitations? Cheers.
  16. megapixel man

    Friday Funny

    Hey Soundy, yea pretty funny line. My fav is "do you think some type of magic camera fairy is going to jump out of the lens and run over to the crooks and take a facebook photo?" " title="Applause" />
  17. No, your not wrong, I was . Only had a 1/3" 5-50mm Tamron Lens to use for that test install. Has since been change to the 1/2" 9-20mm Kowa. Dont have any footage with the new lens, but it is sweet now. Rule #1: Match the lens to the sensor.
  18. If your looking for a similar focal range to the lens you have then try this one, good lens for the money and will match the sensor of the Arecont 5MP. Auto Iris http://www.syopt.co.kr/eng/product/scvhm4012asir.asp Also available in manual iris http://www.syopt.co.kr/eng/product/scvhm4012masir.asp
  19. megapixel man

    Mobotix discussion

    If you can't promote a position based on merit, switch to personal attack devoid of any content relevant to the topic. Best, Christopher Christopher, No personal attack intended, just trying to re-engage you to the thread with amirim, as he was leading you down the correct path. If there is optimal response for both sensors then the 3MP sensor would give the greater resolution. Therefore if you need to cover the same scene distances and widths both day and night and have designed the system for a known result with the 3MP sensor, the 1.3MP sensor will not give you the same outcome. This may be the difference between being able to read a license plate during the day but not at night. Without consideration of compression levels lets take an extreme example: the new Arecont 10MP Camera is 10MP Colour Sensor and 1080p Monochrome. From the Camera mounted at 3 meters we have a distance to target of 30 meters and at 30M a scene width of 20 meters (37 degree horizontal angle of view). We need to cover the same scene both day and night and have installed IR illumination to optimise the night performance. The required result is to be able to read license plates both day and night accross the scene width at the target distance. 1. Will we be able to read the license plates during the day? 2. Will we be able to read the license plates at night? Example 2: We have a good 5MP Day/Night camera mounted at 3 meters high and have a distance to target of 20 meters and at 20M a scene width of 15 meters (41 Degree HAV), we have installed IR illumination for maximum night time performance, and are using a high quality IR corrected lens, we need to read license plates accross the scene width at the target distance. Will we acheive our result both day and night?
  20. It's an easy design. Do you only want to cover the width of the driveway or do you want a greater field of view for that camera and still have the ability to read license plates? Can this camera be located so that is not directly "headon" to cars that will drive up to the gate. If it cannot be then thats OK, just adds to what equipment is required to do the job day and night. With the other Camera locations what field of views do you require? and what type of resolution do you want at what distances. ie: General coverage to be able to see if someone is within the field of view of the camera?. Be able to Identify items of clothing or sex of person? Or be able to clearly id a person? Depending on what level of detail you require you may also need more cameras. How do you plan on reticulating cable or camera signals between the two buildings? Whats the distance between the two buildings? How many days recording do you want? Will you only access the footage from the site or do you need to have remote access, if so is there internet access at the site and what speed is it? Can you jot down any other requirements you need from the system. Will you get a licensed CCTV installer to carry out the work or will you attempt it yourself. I would strongly recommend that you get a professional CCTV company to assist and gather your own knowledge from this site so that you can communicate your design requirements with them.
  21. Wow, how many different NVMS platforms are you using for all those cameras?
  22. megapixel man

    Megapixel 100mm + lens?

    Hi thewireguys, It's possible that for LPR they dont require a true Megapixel lens, also do you know if they use the Axis in 1080p or 3 meg for their LPR? when you get the info back please post here or PM me, would be very interested to find a true C/CS mount megapixel lens with > 100mm focal length.
  23. megapixel man

    Megapixel 100mm + lens?

    No mate. Thats Mobotix speak, very different to this. The Mobotix L135 is a true 25mm lens with a 15 degree HAV on it's 3MP sensor. The L135 relates to 35mm Sensor sizes, ie; a 135mm Lens on a 35mm Sensor gives a 15 degree horizontal angle of view (HAV), so Mobotix relates this back to their lens model numbers even though their camera sensor sizes are completly different. A 25mm lens on a 3MP sensor gives a 15 degree HAV and thats the relationship. Why make it simple eh? So to convert that on the 3MP Sensor, at 1500ft you end up with a scene width of almost 390ft and at 2000ft you end up with a scene width of 520ft, and about 4-6x less pixels on target than the 5MP camera with a true 80mm focal length. (can't be bothered doing the exact math).
  24. megapixel man

    Megapixel 100mm + lens?

    The closest C mount one that I know of and have used is the Rainbow 8-80mm f/1.6, auto iris, IR Corrected 1/2" Megapixel Lens http://www.rainbowcctv.com/specs/mega-pixel/index.html With the 5MP Camera. @ 80mm focal length and distance to target of 1500ft you will get a scene width of 107ft @ 80mm focal length and distance to target of 2000ft you will get a scene width of 145ft pixels on target for the above is relatively low so would only be good for general coverage. Out of your customers budget, but best fit for purpose would be an 11 or 16MP camera with an EF mount lens 400mm Auto Iris Canon. At least you would get good pixels on target. No good for low light. Whats the lighting like?, could imagine for your scene description that it would be low.
  25. megapixel man

    CCTV Design Advice from the FBI

    Uncompressed ? Where ? show me DVR which store uncompressed video ? Hi Alex, how have you been? Nothing annoys me more than the current trend in megapixel cameras of "my NVMS, cameras, codec etc use less bandwidth, less storage than X brand". Most people dont understand that this lower bandwidth, storage comes at a cost of image quality, ability to digitally zoom into an image and still have detail etc..because the original detail captured by the camera sensor has already been compressed and lost before it even gets recorded. Example, camera "A" dual streams to the Workstation at low compression and high image rate for live viewing, but is recorded on a different stream that has a lower image rate, different "lossy compression" used to save on storage. Really whats the point, other than keeping system infrastructure costs down and people bragging "hey my 5 megapxiel cameras only send 1Mbits, and I can record a million days on 250gig". H.264, MPEG-4 are lossy compression codecs, probably the best and smartest lossless compression codec I have worked with is JPEG2000, wow strange that the only IP Megapixel Cameras and system that works with JPEG2000 has the best reputation of image quality, but everyone uses it as a reference to how their systems use less bandwidth and storage. I tell you, since going IP the sales and marketing machines of some CCTV companies have got it all ass about!. Anyway, thats my whinge for the day. Bourbon time.
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