Recent content by PeteJ

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    Full ALPR Database System for Blue Iris!

    Has anyone else seen this issue? The CPAI reads the plate correctly, and it's burned into the image correctly (see bottom right), but it's taken into the database incorrectly (see top left). When this happens, CPAI has some tracebacks: SyntaxError: invalid syntax 18:07:49:License Plate...
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    Check FPS and Key Rates - ALPR Issues

    You are sending too much too CPAI if you are only interested in plates; try there settings (except "to confirm", leave that blank)
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    Check FPS and Key Rates - ALPR Issues

    I do 10fps, 5 iframe, this fixed the issue for me, maybe give that a shot. You can see what the camera detects in the stats window in BI.
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    image corruption

    Looks like it's a bug in CPAI. After changing the settings back, it was still misreading, and noticed it was doing it on the other cameras as well (there weren't any changes to those). CPAI had processed about 250K requests since the last restart, and come to think of it, I had to restart it...
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    image corruption

    ok... so too much goodness gives you some badness Now OCR is reading the plate as Balifornia. Think about that for a sec... it thinks the cursive font that's 1/4 the size of the letters in the plate is the plate. I wonder if Trump can rename my state to Balifornia. That would be pretty...
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    image corruption

    I'm at 8.5x zoom, so I have a little left (10x) but at full zoom, there is a little more distortion and I am also using this to catch traffic in both directions, so more zoom means I am going to have to decide which traffic I want more...
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    image corruption

    Quick update. I've found that the default settings on the camera are terrible for LPR. The color saturation was too low for me to tell the color of the tags, and overall the image was too soft and probably contributed to the OCR error rate slightly. I've bumped color saturation, contract...
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    Parked Cars & Trigger Zones

    It sort of depends on your camera. Dedicated LPR no-config-possible cameras: Aim and mask is all you can do. Not ideal, but for one of my cameras, I've mounted it very high and aimed it at the middle of the street, and I've only had 1 problem--a 24ft box trucked was tall enough to block it...
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    How to capture multiple plate reads in quick succession?

    Do you have another computer on the network that is as fast as your NUC? If so, you can try running CPAI on that instead of your BI machine. This will reduce the CPU load and avoid BI and CPAI competing for the same resource.
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    image corruption

    Could be. The sprays are usually not effective in daylight, but that could be a very dirty plate, too. I'll post the next one that I see that I know doesn't have a plate cover, paper, or dirt. It happens a few times a day.
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    image corruption

    I was at 2048, bumped it a few times to 4096 on a 1080p stream. It'll take me a day or so to see if it makes a difference. I'm trying to improve stuff like this... (I believe this was when I had hw decode turned off) This is my typical
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    image corruption

    Update: Intel Beta worked for about 6 hours before Miller Time. Back to CPU.
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    Blue Iris and CodeProject.AI ALPR

    ah makes sense. thanks.
    • PeteJ
    • Post #1,245
    • Forum: AI
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    image corruption

    Thanks @wittaj, I always learn a lot from your details replies. :) I just tried the Intel hw decode (was using intel +vpp) and I was still getting the corruption, so I switched to Intel Beta just to see what happens. Yeah, I was having some BI issues, and one of the first things support...
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    image corruption

    Disabling hardware accel worked. Doesn't seem to make the CPU work any harder either. The quality does seem poorer tho, i'm going to flip it back on and see if the quality improves.
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