Maybe you've created your own AR program for wearables that shows the definition of a word when you highlight it IRL, or you've built a personal calendar app for your family to display on a monitor in the kitchen. Whatever it is, I'd love to hear it.

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jo-m ◴[28 Apr 23 08:49 UTC] No.35738987[source]▶

>>35729232 (OP) #

I have a rail line right under my apartment, so I built a small computer vision app running on a Rasperry Pi which records each train passing, and tries to stitch an image of it.

It has a frontend at https://trains.jo-m.ch/.

Edit: it's currently raining and the rain drops are disturbing the images a bit.

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1. bombcar ◴[28 Apr 23 17:52 UTC] No.35744731[source]▶

>>35738987 #

This is close to what I've always wanted to build; a camera watching the road next to me that records the speed of the vehicle traveling by. I should have everything needed from a simple camera setup, but I've not bothered actually doing it.

Since you have speed, I should dig into this.

replies(5): >>35745202 #>>35746206 #>>35747621 #>>35753942 #>>35760517 #

2. hyeomans ◴[28 Apr 23 18:26 UTC] No.35745202[source]▶

>>35744731 (TP) #

Same here, I have a Pi 3 but I want to have this outside in the balcony, the question that always stops me is how to power it and what camera do I meed?

replies(1): >>35746033 #

3. bombcar ◴[28 Apr 23 19:31 UTC] No.35746033[source]▶

>>35745202 #

My plan was to stick the Pi inside, and power both it and the camera with Power over Ethernet (external-rated PoE cameras are a dime-a-dozen on Alibaba and friends).

I even got so far as to get it working with Zoneminder to dump out the clips that had motion, but didn't get further.

4. password4321 ◴[28 Apr 23 19:47 UTC] No.35746206[source]▶

>>35744731 (TP) #

https://news.ycombinator.com/item?id=11714207

5. robodan ◴[28 Apr 23 22:01 UTC] No.35747621[source]▶

>>35744731 (TP) #

I wanted that with noise levels. I'm so very tired of hearing illegally modified exhausts. It seems like an I2S mic would give calibrated levels.

6. Tempest1981 ◴[29 Apr 23 15:38 UTC] No.35753942[source]▶

>>35744731 (TP) #

Could you show average speed vs car manufacturer? Or vs car type (compact, European luxury, minivan, truck). I've always wondered if this is correlated.

replies(1): >>35756800 #

7. bombcar ◴[29 Apr 23 20:24 UTC] No.35756800[source]▶

>>35753942 #

Would be interest; perhaps the red ones ARE faster.

replies(1): >>35757535 #

8. oever ◴[29 Apr 23 21:44 UTC] No.35757535{3}[source]▶

>>35756800 #

The short ones are fastest.

9. dharisd ◴[30 Apr 23 07:59 UTC] No.35760517[source]▶

>>35744731 (TP) #

I actually have done something similar to this, since I had pretty clear view of the road infront and had my old android phone laying around,

Used to yolov5 to detect vehicles and deepsort to track them, also got a rough estimate for the speed of the pass

heres the two part blog i wrote about it

https://dharisd.github.io/posts/vehicle-monitor/

https://dharisd.github.io/posts/vehicle-monitor-part-two/

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