@gsuberland@chaos.social
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gsuberland

@gsuberland@chaos.social

he/him

Into electronics, windows internals, cryptography, security, high speed networking, compute hardware, physics, colourimetry, lasers, stage lighting, D&B, DJing, demoscene, socialism.

Heavily ADHD.

Laser team @ EMF Camp, lasers & lighting orga @ NOVA Demoparty.

I sell parody warning stickers at Unsafe Warnings: https://unsafewarnings.etsy.com/

For a day job I hack stuff, I guess. Embedded tech, ICS/SCADA, marine stuff, x86 platforms, etc.

All posts encrypted with ROT256-ECB.

This profile is from a federated server and may be incomplete. Browse more on the original instance.

gsuberland, (edited ) to random
@gsuberland@chaos.social avatar

is anyone familiar with a method of extracting a stillframe image from a particular timestamp of a video that considers temporal information from neighbouring frames, in order to produce a still image that looks more like what we perceive during playback? non gen-ML based solutions strongly preferred.

regular frame extraction tends to have blocking artifacts and other quality issues that are harder to perceive in realtime.

I assume something along these lines exists for video forensics.

gsuberland,
@gsuberland@chaos.social avatar

@nyquildotorg the footage isn't interlaced so deinterlacing wouldn't be much use. I'm aware of the deblocking filter but from what I can tell it just postprocesses the still image rather than considering motion vectors and other temporal info to inform the process. although if it does do that, that would be useful to know.

gsuberland,
@gsuberland@chaos.social avatar

@nyquildotorg I'm not really worried about frame presentation cadence issues as this is a video directly shot on a camera without being converted to an alternate frame rate. I just want a single still frame that doesn't carry the compression artifacts that are visible when you extract a single stillframe. When the video is playing back your brain does a bunch of perceptual work (persistence of vision, etc.) to hide the issues that are apparent in a single still frame.

gsuberland, to random
@gsuberland@chaos.social avatar

If you've got footage from #emfcamp #NullSector, please send me links!

Watching the lasers from the control booth is fun, but I always love seeing what it's like from the audience's perspective too.

#emf2024 #emfcamp2024

gsuberland,
@gsuberland@chaos.social avatar

this clip from @Violet during Det's closing set on Sunday is awesome

https://youtu.be/u4QlDQjoGhE

gsuberland, (edited )
@gsuberland@chaos.social avatar

naturally I have to repost this amazing slow motion shot from @jtruk, which I cannot help but keep watching over and over with a grin on my face

gsuberland, to random
@gsuberland@chaos.social avatar

I'm going to have to write a blog post about EMF because if I start talking about all the stuff I enjoyed and got up to in short form threads you'd all end up exhausted. Just too much to cover. This year was something else.

jonty, to random
@jonty@chaos.social avatar

If you are the person who abandoned a tent full of crap at EMF: We are going to find you.

You have enraged a group of people who enjoy puzzles and suddenly have a lot of free time.

Run.

gsuberland,
@gsuberland@chaos.social avatar

@jonty ugh, so disrespectful of the folks who have to clean the place up.

gsuberland, to random
@gsuberland@chaos.social avatar

I love that there's a major power inductor manufacturer called Sunlord. it makes me feel like I'm buying parts from an ancient Egyptian god.

"Oh yeah I've been using Imhotep inductors for years, they're rock solid"

gsuberland, to random
@gsuberland@chaos.social avatar

Starliner is off the pad! Just hit T+1m.

gsuberland,
@gsuberland@chaos.social avatar

Perigee is converging to expected values. 30s to MECO.

gsuberland,
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Main engine cutoff! Right on time.

gsuberland,
@gsuberland@chaos.social avatar

Just over a minute until Starliner separation. Even if the craft fails it is left in an orbit where it can safely re-enter.

gsuberland,
@gsuberland@chaos.social avatar

Starliner separation! Looks successful.

gsuberland,
@gsuberland@chaos.social avatar

Livestream host joked that the UI looks "very familiar" - definitely a strong KSP vibe.

gsuberland,
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Video link isn't working unfortunately so we've just got simulated views. Crew seem to be doing ok though.

NASA say good trajectory, on track for alignment.

gsuberland,
@gsuberland@chaos.social avatar

RCS working and adjusting course as needed.

gsuberland,
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Cabin temp sensor disabled because it's reading high (23°C / 74F), apparently they put it next to the cabin lights and it's causing the sensor to be artificially heated.

gsuberland,
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Hand flying tests in progress. Pretty cool.

gsuberland,
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RCS correction complete, Starliner thrusters are burning and bringing it into orbit.

gsuberland,
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Good OI burn, stable orbit! Starliner is in orbit of earth!

gsuberland,
@gsuberland@chaos.social avatar

Sublimator cooling is a bit wonky, water usage is higher than expected. They're going to adjust some valves to switch to a different leg on the system. But seems fine so far.

gsuberland,
@gsuberland@chaos.social avatar

Secondary is operating, water usage still higher than expected. They're gonna close it off at 10% water remaining, and from there it sounds like the crew will be doing manual control. Should still be ok, just means it might get very slightly warmer than expected coming into docking.

gsuberland,
@gsuberland@chaos.social avatar

Ok, NASA says the sublimator issue is fine, they're just going to switch to radiator cooling slightly earlier than normal to compensate for the higher water usage than expected. Should not be a problem for this flight.

gsuberland,
@gsuberland@chaos.social avatar

That's a wrap for me, gonna be a while before more updates and I've got some other things to catch up on.

jonty, to random
@jonty@chaos.social avatar

Reading the feedback is always hard, but this year that's because its all so lovely I keep getting emotional.

gsuberland,
@gsuberland@chaos.social avatar

@jonty a bunch of folks I know who came for the first time had an absolute blast and said it blew their already-high expectations out of the water. so much stuff to enjoy, so many amazing people to chat with. everyone really outdid themselves this year.

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