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Vizy, an AI Camera for the Pi

vizycam.com

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Re: Vizy, an AI Camera for the Pi

#31

Post by scottlamb »

ajsharp wrote: post #2

Have been desperately wanting something like this so I can build an AI to detect when people don't pick up their dog shit in front of my gate. I am saved.

You probably want to mount a weather-resistant camera outside. You could buy an eg Reolink security camera for this fairly cheaply. [1] Then you can stream the video to a Raspberry Pi 4 + Coral USB accelerator, an nVidia Jetson nano, or the like and do analysis there.

[Edit: oh, I missed that the Vizy has an outdoor enclosure available. Still, it's extra $60 and is huge/ugly. The off-the-shelf IP camera + separate computer for analysis should be cheaper and IMHO better.]

I'm working on a Free Software security camera NVR system. [2] I have a pretty solid core recording engine now and am just thinking about what the API for on-NVR analytics plugins should look like. I'm imagining a Python API where you write some coroutine that can iterate through decoded video frames (either live or backlogged) and make calls to your favorite ML frameworks; add events, object detection tracks, and other metadata to the database; instruct that MQTT messages be sent; etc. If you're interested in using this kind of thing, I'd love to talk more.

[1] I used to recommend Dahua or Hikvision, but it seems they're actively supporting the Uyghur genocide via custom software, eg https://www.latimes.com/business/technology/story/2021-02-09...>. I won't be buying any more cameras from them; I'm sure my boycott will devastate their business and cause them to reconsider their position immediately. As far as I know, Reolink is uninvolved, despite also being a Chinese company.

[2] https://github.com/scottlamb/moonfire-nvr

Re: Vizy, an AI Camera for the Pi

#32

Post by outworlder »

helsinki wrote: post #17

If you throw in a classifier for detecting dog poop, and ideally, urine, I will buy five of them, place them around my home, and ensure the floors are clean before sending an API call to start my robotic vacuum. Thank you. Edit: there is a market! https://news.ycombinator.com/reply?id=26916974&goto=item%3Fi...

There are some robo vacuums with cameras that will avoid poop

Re: Vizy, an AI Camera for the Pi

#34

Post by Tenoke »

ilaksh wrote: post #27
fudged71 wrote: post #26

What I would really love is a camera looking out each side of my house and one upwards, looking at both ground and sky. Train it over the span of a year. And then notify me whenever something novel happens. Beautiful sunset? Let me know. Strange car parked in front of my house? Let me know. Neighbours house on fire. Backyard intruder. Flooding. Etc. Anything sufficiently new that the camera hasn’t seen before. Is the…

The problem is that something as ambiguous as you described requires human-level AI. But if you could accept portions of it, you could build a detector for unusual vehicles (would yield a lot of false alarms). And a detector for beautiful sunsets. A system that would recognize individuals by gait and be trained by you for specific authorized persons. A detector for water on the ground. It's possible to just detect an…

There's no reason for outlier detection to require human-level AI. It's probably doable with prediction on different semantic levels, and a lot of calibration.

Re: Vizy, an AI Camera for the Pi

#36

Post by bvvvv »

phreeza wrote: post #33

Why is it seemingly impossible to buy DSLR grade image sensors for diy projects at a reasonable price?

Why can I buy a 30mp trail camera with motion sensor and wifi for $70 but I cant buy a 30mp camera that connects to my computer over usb for that cheap.

https://www.amazon.com/Victure-Activated-Waterproof-Detectio...

Re: Vizy, an AI Camera for the Pi

#37

Post by hnnnnnnng »

bvvvv wrote: post #36
phreeza wrote: post #33

Why is it seemingly impossible to buy DSLR grade image sensors for diy projects at a reasonable price?

Why can I buy a 30mp trail camera with motion sensor and wifi for $70 but I cant buy a 30mp camera that connects to my computer over usb for that cheap. https://www.amazon.com/Victure-Activated-Waterproof-Detectio...

This has 8 mp https://www.amazon.com/dp/B08F3CJ5HF/ref=emc_b_5_mob_t

Re: Vizy, an AI Camera for the Pi

#38

Post by ep_jhu »

fudged71 wrote: post #26

What I would really love is a camera looking out each side of my house and one upwards, looking at both ground and sky. Train it over the span of a year. And then notify me whenever something novel happens. Beautiful sunset? Let me know. Strange car parked in front of my house? Let me know. Neighbours house on fire. Backyard intruder. Flooding. Etc. Anything sufficiently new that the camera hasn’t seen before. Is the…

Scale down your scope and it might be doable.

One of my pandemic projects was a Pi4 with HQ camera to detect/ID helicopters flying by my building, and also create sunrise/sunset videos and post them to twitter (https://twitter.com/dcskycam).

I set up the camera and used an OOB object detection model which works well enough. Also trained custom classifiers for helicopters after I had enough training data (work in progress for some aircraft types).

Also consider that some of the things you mention, a camera is not the best sensor for the task.

Re: Vizy, an AI Camera for the Pi

#40

Post by [deleted] »

helsinki wrote: post #17

If you throw in a classifier for detecting dog poop, and ideally, urine, I will buy five of them, place them around my home, and ensure the floors are clean before sending an API call to start my robotic vacuum. Thank you. Edit: there is a market! https://news.ycombinator.com/reply?id=26916974&goto=item%3Fi...

[deleted]
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