Paxvigo EBF810
- Thread starter Ssayer
- Start date
Thank you. Here are all the settings.
And here's a small section of the video stream on the Synology NAS, I just don't want to reveal a lot about where I live.
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Exposure time of 1/25 is killing you. Try 1/250 and go from there
During the day I normally run at 1/1000
During the day I normally run at 1/1000
I take it you don't want audio, right?
If you're really in the US, you need the video standard to be NTSC
Also, I have Iris mode set at fixed (but what do I know)
If you're really in the US, you need the video standard to be NTSC
Also, I have Iris mode set at fixed (but what do I know)
mat200
IPCT Contributor
- Jan 17, 2017
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HI @Node_4
at what distance from the camera are you attempting to capture this image?
( do check out the DORI section of the cliff notes )
Yep, need consent to record audio in my state. Changed to NTSC and it seems like fixed iris mode is all there is available. Also changed exposure to 1/250 and testing
About 15-20 feet. It's a moving vehicle going about 15mph.
mat200
IPCT Contributor
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Resolution : Paxvigo is 4096x1840
FOV : 180
From the Cliff Notes :
The equation to calculate the Radius (the distance in feet) for identification for 100 ppf as discussed above: Radius = (( Horizontal Res / 100 ppf ) * ( 360 / H FOV Angle ))/2*Pi
Radius = ((4096 / 100 ppf)*(360/180))/2*Pi = 40.96 / Pi = 13.04 feet to 100 ppf
often you can read a license plate with less ppf, if you get a straight on shot ..
at 20 feet .. 20 = ((4086 / X )*(2))/2*Pi = (4086/X) / Pi
solve for X .. 4086/X = 20 * Pi
X = 4086 / ( 20 * Pi ) = 65 ppf
SO only if the car license plate is directly facing the camera at 20 feet will you have a chance at a good license plate image capture just based on the DORI calculations, in the real world case .. I would say this camera is pushing its limits to capture a license plate straight on at 20 feet ..
Best way to test this, is to take a license plate and face it directly at the camera at 20 feet and confirm what the math is tell me.
Oh that wasn't really necessary. I'm very aware this isn't license plate camera material and I'm trying to convince my neighbors to pitch in for a dedicated license plate cam. I only took a screenshot of something that best shows the quality of the entire video feed.
On another note, there seems to be no difference in picture quality changing to any exposure time
From where you are now, start reading on page 83. You'll learn a lot.
mat200
IPCT Contributor
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also note .. DORI using 100 ppf for ID .. is only 13 feet from the camera to the subject's face ..
Radius = ((4096 / 100 ppf)*(360/180))/2*Pi = 40.96 / Pi = 13.04 feet to 100 ppf
mat200
IPCT Contributor
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Note, It is partially blurry due to the exposure .. put a non-moving object there and show us how that turns out.
I said the "sidewalk" lol. The dog was just a bonus that happened to show up as I was taking a screenshot of the sidewalk. It's still blurry less than 10 feet away and non-moving. And same on every exposure setting. I'm surprised nobody has pointed out to me that the camera is just "you get what you pay for" because that's understandable. But I'm feeling lead on like I can achieve better with this camera somehow.
mat200
IPCT Contributor
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Hi @Node_4 ..
So, when digital cameras take videos, which are using compression .. especially H.265 and higher compression algorithms .. you will have effects on the image, especially if you have a variation of light / shadows / moving objects.
JUST put a item there which is NOT moving, and have NO moving objects in the video capture ..
I suspect you are expecting too much from security cameras sold at reasonable prices with default settings ..
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Finally someone confirms what I always suspected to be the case. I just figured I'd hop on this thread and see what I can squeeze out of it. Apparently not much more.
Exposure is 1/250 because it's dark. The closest part of that rail is about 6 feet away. I've tuned mine. If you've taken the mylar film off of your lenses, read what I pointed out to read, and tuned yours. Then you have a need for an exchange. A lemon camera doesn't make the whole model line bad...
If you've just come here to troll, so be it. I'll let you have at it...
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It took me longer than I care to admit to realize you were talking about the clingy protective film on the outside
On a side note, I'm bookmarking that manual PDF. I honestly haven't messed with the shutter speed on any of my hikvision oem's Overall I've been pretty happy with them, but maybe there is actually some room for improvement.
