pkoi
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Everything posted by pkoi
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I was wondering the same,
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3rd party Fisheye compatible with Geovision
pkoi posted a topic in IP/Megapixel Cameras and Software Solutions
I'm currently using geovision software and would like to know if there are other fisheye camera compatible with their flattening software. I'was looking at this product that is compatible with almost every ip cam on the market, http://www.wavestore.com/page/cctv-cameras/360-degree-fisheye-cameras/ The Geovision offering in their compatible list is very limited, do you know of any 3rd party fisheyes IP Cam that might work ? -
3rd party Fisheye compatible with Geovision
pkoi replied to pkoi's topic in IP/Megapixel Cameras and Software Solutions
Bump... Any HD FishEye suggestions ? -
PC based DVR system, with client system running 7 monitors.
pkoi replied to TyrantUT's topic in DVR Cards and Software - PC Based Systems
for roughly 150$ you can purchase a used video card with 7 output, HD5870 Eyefinity 6 or the newer HD7870 Eyefinity 6 for ~300+$ ,, ( I have no idea why it is so expensive) Display Port (DP) support daisy chaining monitors, "17.28 Gbit/s of effective video bandwidth, enough for four simultaneous 1080p60 displays" display with DP can be harder to find ...$ Good luck with these consumer grade alternatives. -
960H / 700tvl camera & DVR ... many questions.
pkoi posted a topic in DVR Cards and Software - PC Based Systems
I wish to clear some misconception I have about TVL-resolution, Correct me if I'm wrong Most analog DVR cannot record to more than 480 vertical line, That would mean a 700tvl equal to a 700x480 resolution. Is there a point where horizontal resolution is too high compared to the vertical ? I was interested in purchased these 960H Sony Effio cameras but I find it very hard to search for DVR that can record this higher resolution. What do you think of thes 960 x 576 cards ? http://www.ebay.ca/sch/i.html?_nkw=960x576&_sacat=0 Also why are sone camera advertised as 700tvl when , for example, highest resolution Pelco FD2-V specs show : http://www.pelco.com/documents/product/en/shared/analogcomparisonguide.pdf Sensor : 960H Resolution : 976 (H) x 494 (V) Horizontal resolution : 650 TVL Since most-all cameras and DVR can both work in NTSC and PAL mode, Shouldn't all CCTV be using PAL only ? -
iCatcher Go for Android and iPhone
pkoi replied to francisuk22's topic in DVR Cards and Software - PC Based Systems
For some reason it's impossible to grab more than 5fps per camera with their software. -
I think using a webcam as a security camera for protecting the DVR PC area is much more cost efficient, As long as you don't spend to much time setting the software, (rarely the same as Analog software) I would personally use iSpy (free) or i-Catcher (costly). Soundy was right, in that USB 2 over UTP was costly. USB 1.1 are dirt cheap though, (8$) At the very worst one could use a cheap PC as as USB HUB, as long as it has a GB Ethernet it should be fine sending over ~6 webcams. I would also imagine a setup where there is already 10+ workstations, Having to watch employes over this kind of system would be very cost efficient. USB over IP http://sourceforge.net/projects/usbip/develop a thread on webcam on USB 1.0 over Cat 5 http://www.wxforum.net/index.php?topic=9782.0
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What did I just read ? If you're explaining all that because you noticed it was B/W note that I explained why in my post. As someone who has removed the IR filter from his Canon 20D, I kinda know what you're talking about.
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The back of what ? I'm asking. Nevermind, I'll setup a test ... Aint that a software + dynamic range issue ? I don't have much time right now, but this is what I have for now. http://dl.dropbox.com/u/2479243/2012-04-09%2023-45-24.973.wmv I don't have a pole light in front of my house and have big trees so the lightning at the end is almost pitch black. I could not record 1080p since I was running it on a kind of netbook which like to downclock to 800mhz when off AC. I though I had broken the webcam firmware since it seemed it was stuck on B/W on a new PC. Apparently the settings are saved in the camera itself, (it was on lowest color saturation)
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What do you mean by "bright back lighting" ? What would that achieve ?
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You can plug as many webcam as you want, unless there are driver conflict, (not gonna happen with Logitech / Msft) UBS2's 480mbps is much less than what is needed for uncompressed 1080p , It is even more bandwidth than what most hard-drive can write at, (125mb/s or 1 gigabit/s) Given the Logitech c920 has h264 compression in the camera , I think you could run ~8 of them on a shared 480mbps. And adding a 10$ USB2 - PCI addon card is adding another 480mpbs.
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OmniVision make sensor for high end IP camera, I little doubt their printed specs. Lets say for a moment the sensor is not that bad. Start at 30$ Swap the USB controler for an Ethernet one, remove high quality microphone, remove audio processing chip, remove auto-focus mechanism. You are left with 470$ to find a slightly improved sensor, h.264 chip (15$?) a custom metal box and a dozen IR LEDs. I wouldn't be surprised if BOM for good IP cameras was about 15% the cost they sell them for. <-- This is the point I was trying to make.
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Camera : Microsoft LifeCam Studio Sensor Type : CMOS Color (OmniVision OV2710) Sensor Size / Pixel Size : 1/2.7" (3 x 3 µm) Sensitivity : 3300 mV/(lux-sec) Look at http://www.flickr.com/photos/sharpshutter/6667338191/ Vivotek are rather cheap for good 2mp camera, they still cost ~500- 900$
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The sensor must be 1/3" , 75° diagonal field of view With 1080p I'd rather lens be as wide as possible anyway. My main problem right now is the software, it require a lot of processing power to compress the stream, If I could find a way to use a CUDA enabled encoder. For USB length as I said I'm using powered extender or USB over cat5. 15ft is the spec but 20ft + is possible. IR filter : There are various astronomy website that have dissembled this webcam to convert it for astronomy uses, removing the IR filter in the process. I'm currently looking at a Logitech c920 (75$) which has h.264 hardware built in.
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I've been learning about CCTV systems for ~2 years and I'm appalled by slow progress and the price of improved products. This webcam was released about 3 months ago at MSRP of 100$, it is now selling at ~50$ shipped.
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I was specifically talking about microsoft Lifecam Studio and Logitech c920 c910 c905. These are true 1080p sensors with top notch glass lens (Usually Carl Zeiss), autofocus. If you want my take on the state of the CCTV economy, It's bad, Analog cams are old piece of **** and the newest IP/Megapixel/softwares lock-in are shady and price gouging scams.
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Benefits : High resolution webcam have a MUCH MUCH better quality/cost ratio than IP cameras. I lately got myself a few Msft Lifecam studio, 1080p@20fps. for less than 50$ The problems are : * USB max cable length, require powered extender or usb over cat5, * Compression, I'd be looking for GPGPU encoding or this as it use ~60% of a quad-core CPU for h.264. (the Logitech c910 has built-in hardware h264) * Software support is rather poor, Those I've experimented with, Luxriot, i-Catcher, and iSPY (open source) When buying 600+tlv analog cameras I'm always worried the DVR would not be able to support it and I'd be stuck using it at 480tvl It look like this 45$ webcam has as much resolution as 8 x 480tvl analog cams.
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Do I need some additional encoders server-side to be able to view cam in a regular browser, (Mpeg4) The gv-iView app show all cam as black but indentify "signal lost" correctly. Everything work fine with the activeXs in IE
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It's a new setup, I meant a browser that is not IE with ActiveX,
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I use version 8.4 and usually regular browser can see an mpeg4 live-only stream. (quicktime)
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Don't ever use TVR-30 TruVison DVR (General Electric)
pkoi posted a topic in Digital Video Recorders
The DVR does record the images but the playback interface is awful, There is no way to scroll in time, There is no way to foward to next event "motion detection" The system only allow to playback the last 2 day easily the rest get archived and takes ~1 hrs to retrieve a 10 min clip. The AVI export function is worst, take forever to convert a 30 sec clip. The current UI does not allow going back further than 120 events, which is about 4 hrs on opening hours. No way to plug a keyboard, have to key in word with the mouse. Fast forwarding at 8x 16x 32x does not goes any faster than the 4x mode. ... skipping dozens of specific bugs in the UI.