schobi

7 ms·

31.
by schobi 9mo ago
It even requires depth information - While this methods has no post processing, it requires a pre processing step to pre-calture the scene, segment it, estimate depth an compute the depth map.
32.
by schobi 9mo ago
I'm confused by the claims.. You try to compute something that supercomputer can't - by not computing it? Instead the formula is stored in a data structure. But once you need to access all the values you still have something that
33.
by schobi 10mo ago
Linux mainline kernel just had support for GPIB added. https://hackaday.com/2025/12/16/after-decades-linux-finally-...
34.
by schobi 10mo ago
This sounds more like a Matt Parker video idea - get a bunch of people, three theodolites to measure angles accurately, a good location and start measuring angles for line of sight and see how well this determines the earth's radius. R
35.
by schobi 11mo ago
It would be interesting to learn how this was created. Did you buy all these colors and paint and scan them? Did you analyze the shopping images of the bottles and classify them into hex colors? Or maybe just group by the color names given
36.
by schobi 1y ago
Closed circuit television (CCTV) is a term to describe video transmission that is not broadcast. Traditionally with BNC cables going to a control room, monitors and recorders. I think this software-only post is meant for IP cameras / s
37.
by schobi 1y ago
I agree with the overall discussion, but in the last link (Curtis Mobley Ocean Optics Book) the argument is broken. Mobley plotted two graphs of the solar irradiation and a black body fit. The only difference is supposed to be the x axis wi
38.
by schobi 1y ago
So far it sounds reasonably environmental friendly and good that they have a pilot plant running. A few questions remain unanswered though: What can the current plant already do? It sounds like a multi-day sequential process per batch. How
39.
by schobi 1y ago
I would not expect that this becomes competitive against a low power controller that is sleeping most of the time, like in a typical wristwatch wearable. However, the examples indicate that if you have a loop that is executed over and over,
40.
by schobi 1y ago
Great writing! If you didn't catch the reference, this is referring to the recent vibe coding incident where the production database got deleted by the AI assistant. See https://news.ycombinator.com/item?id=44625119
41.
by schobi 1y ago
A previous discussion of the M7.7 quake in Burma/Myanmar from March 28, 2025 was provided by Sean Wilsey. He explained the earthquake and context and discussed the CCTV footage around 6:30 https://youtu.be/CfKFK4-HNmk
42.
by schobi 1y ago
assuming this is serious... There is no silver bullet - you can't just build a 10bn$ nuclear bomb programm and call it a day. All the other means are still needed to transition away from fossil fuel. The earlier we start the better.
43.
by schobi 1y ago
So... The setup was already running and they happened to catch the Feb 8 in incident? What a luck! There is open distributed monitoring for all kinds of signals, like seismometer networks, weather, ads-b... Is there anything like this for
44.
by schobi 1y ago
How far off are we still for doing this with visual light? Let's say you build single photon detectors and ultra precise time stamping. Would that get us near? Today, maybe we don't have femtosecond time stamping and detectors yet
45.
by schobi 1y ago
I agree, this seems really odd. The solution should not be a modern projector with 1kW electrical power converted into heat. The Cob array of leds is the problematic choice, while on paper you get a lot of light, you don't get a point
46.
by schobi 1y ago
I like the idea and the looks of it, but do they get any usage (beyond the test calls)? It will be hard to overcome a lot of gaps in education - where is a phone (he seems to have signs "phone inside"), what kind of device am I ev
47.
by schobi 1y ago
What a beautiful execution. He seems to have included all requests and written about every detail. Going to this kind of resolution, the only practical use case is with cameras. You record some frames and later want to check the exact times
48.
by schobi 1y ago
The pricing link in the menu does not work. I could not find what sizes and material for the physical stickers you used. "high quality" hmm
49.
by schobi 1y ago
Thanks for sharing! The description confused me, as it describes the use of a real Lidar measurements to detect "change" in the terrain. But certainly, it can't be a temporal change before and after... to detect medieval sett
50.
by schobi 1y ago
This is really awesome! I was surprised about using dilation. I would have expected music21 to support rendering to a certain resolution/dpi setting directly and avoid rescaling the images. But from the music21 documentation this is no
51.
by schobi 1y ago
I love the out-of-box thinking and clean execution by mitxela. But why not make it the other way round? Downsides: you need enough magnetic knobs and store them when not in use. If this becomes popular, will all knobs be compatible? What if
52.
by schobi 1y ago
Right - unlikely this is going to work. For sending a VGA signal even at 640x480 you will need a short h sync pulse of 3.8us at 31.x kHz. You would need an audio interface without filters with single low pulses at 260 kHz samplerate. Otherw
53.
by schobi 1y ago
There is certainly also a device limitation. I would expect that with less than full 24 bits of color, some fields might just look the same and the results do not depend on your vision any more. Let's say the device has a "24 bit
54.
by schobi 1y ago
When building a camera, you decide once and then most parameters stay fixed. It would be trivial to just append 1000 bytes for a mostly fixed DNG header to each image. But how do you test this? While the DNG specification is open source, th
55.
by schobi 1y ago
Nitpicking correction: The sensors give you a fixed number of bytes per pixel, like 10 or 12 bits per pixel. This are unsigned integers, not floats. Typically you want to pack them to avoid storing 30% of zeros. So often the bytes need unsc
56.
by schobi 2y ago
This is an interesting idea, but I'm sceptical of the advantages. "there is more Co2" is valid for cars burning fuel. But as soon as you recuperate (even in a hybrid) you might only have a fraction of the losses any more. Adj
57.
by schobi 2y ago
Seems like a spark or sparkline describes a bar graph, rendered inline in regular text. There is some font magic to render {30,60} as small bars in the text. Nice, but the terms were new to me. Would have helped to explain them first.
58.
by schobi 2y ago
Wouldn't it be great if a universal standard existed for devices sending their diagnosis via audio? If there is a microcontroller and a beeper in there anyway, at only the extra cost of internal memory? Instead of a modem-type modulati
59.
by schobi 2y ago
They tried on the moon, but there does not seem to be an assumption that this is limited to the moon? So one could obtain a position anywhere in earth's orbit, up to heights of 380.000km? 1.5km accuracy is impressive then. Apart from t
60.
by schobi 2y ago
Similarly, the dfplayer mini is fine if you want some sound to scream back at you. Works on button press, but also rx/TX for track management from micro SD card. Small amplifier built in. I built motion activated playback speakers - go

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