Viewing profile — robertleoj
robertleoj
HN member- Joined
- Sun, Feb 18, 2024, 2:40 PM UTC
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About robertleoj
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Recent public activity
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Comment #47238396
Hello Dima! Thanks for replying - I really admire your work with mrcal, and have used it for a while in my work. And lensboy is heavily inspired by mrcal. > Is your splined represe…
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Show HN: Lensboy – Lightweight camera calibration with spline distortion models
I do a lot camera calibration. As my need for accuracy increased, I started using mrcal, a great camera calibration tool. But I found it didn't fit my workflow well in terms of wor…
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Comment #45286818
Hello! I'm the creator of SlamDunk, and I use it daily in my day-to-day work for 3D visualizations. I really like it, so I thought I'd share it.
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Show HN: SlamDunk: A user-friendly 3D visualization library
Hello! I am working on SlamDunk, a lightweight and easy-to-use visualization library built with C++. I started the project out of a personal need - I am in the process of learning …
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Comment #42462394
Did you try using the previous configuration as an initial guess to the numerical optimizer? If the next position is close to the previous one, the solver should be very quick. Als…
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Comment #42416081
Thanks! Exactly - I feel much more comfortable talking about the hardware at work now after having made this and feel more confident about making something more advanced. This is m…
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Comment #42416068
Right? I'm thoroughly enjoying that rush :D
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Comment #42416066
Really cool 4dof robot - thanks for the reccomendation
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Comment #42416058
Thank you, great to hear!
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Comment #42416053
That's true - using numerical optimization was just the simplest/fastest way to get it working :P
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Comment #42416042
Nice - did you just chuck it into wolfram alpha or sympy? How'd you get it?
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Comment #42416038
Thank you! I made it like that purely for fun, this project was not intended to be useful, or have the best mechanical design :P Using Gcode is a good idea, though it does seem a b…
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Comment #42416031
Oh wow that is refined indeed - I'll check it out, thanks!
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Comment #42416019
That's very inspiring for me to hear, thank you! Glad it's useful.
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Comment #42416015
"Mastered" is a strong word, but thanks!
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Comment #42416012
Hahaha wow that is scrappy as hell - it does look difficult to get right :P
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Comment #42416008
Well in what context does it matter? If it's useful for you to learn, then it matters, right? There are also endless applications for hardware, but I guess to make a viable product…
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Comment #42415986
Yeah - I'm using mediapipe for hand tracking, which is straight out of the box. Then I can just make the robot draw the exact sequence of dots my index finger drew :)
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Comment #42415974
Great to hear that it's useful!
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Comment #42415970
Happy to hear :D
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Comment #42415965
Previously, I worked at a startup where we were making a vision system for golf simulators to analyze the player's swing. It's this company: https://www.elvagolf.com/ I learned a l…