Omar Rizwan
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@omar,
Hmm it looks like some sort of fascist flag
![Measure program geometry. Now we need to tell Folk the exact geometry of an average program page how big is
the tag in each program? how far is the tag from the edges of the sheet of paper?).
Print a program that outlines itself, if you don't have one already. Fold the program in half if you want half-height programs. Measure the inner tag side
length and tag distances to the edges of the sheet:
[image of half a sheet of paper with QR-code-like marker in top right and red and blue horizontal and vertical lines radiating from it to the edges of the sheet]](https://social.omar.website/fileserver/01PG4R73NMJC888MJM2KBM4CFF/attachment/original/01QAZRJ47X5DA5Q52XCWQRQ7N7.png)
Profile for
Omar Rizwan.
Username @omar, social.omar.website.
Role: admin
About
"The program should, in some way, expand the concept of what computer paint programs are, as well as what mark making can be."
Joined on Dec, 2022.
748 posts.
Followed by 266.
Following 142.
Omar Rizwan
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@omar,
Omar Rizwan
.
@omar,
video game controller
Omar Rizwan
.
@omar,
How I feel whenever I read old papers https://glammr.us/@overholt/112694786223550746
Omar Rizwan
.
@omar,
Debugging 3D calibration... had weird issues where it produced homographies with det(H) < 0 which totally messed up the rotation and translation (you'd have a couple calibration poses that have z < 0, so 'behind the camera' or 'behind the projector' and reflected, which I guess makes mathematical sense but not physical sense lol). I just set H = -H and then it fixed everything
Omar Rizwan
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@omar,
All computer vision stuff is like
Step 1. Do some linear algebra that makes logical sense, uses a rational scientific model of how we believe the world works, looks reasonable
Step 2. The result of Step 1 is basically garbage. Feed it into a nonlinear optimizer to make it actually good
Omar Rizwan
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@omar,
Omar Rizwan
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@omar,
stubbornly calling it `rotationVectorToRotationMatrix` instead of `Rodrigues`
Omar Rizwan
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@omar,
Also wondering if this technique would help with RFID stuff -- I hadn't realized that there is this same problem of discrete ambiguity even in visual marker tracking https://social.omar.website/@omar/statuses/01J0F5H0GW4HMG3G6B5RR0TQ9T
Omar Rizwan
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@omar,
Been reading about "Virtual Visual Servoing" http://rainbow-doc.irisa.fr/pdf/2002_eurographics_marchand.pdf -- maybe the most convoluted way to explain a smoothing/filtering algorithm (?) that I've seen lol
Omar Rizwan
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@omar,
What is a car mouse
