orbital-decay

161 ms·

1. 2101.▲
   by orbital-decay 9y ago

   Interesting. Not trying to say it's not possible, but are there any sources on that other than the article calling Luna probes "Luniks"? I've never heard this story despite reading quite a lot about the soviet space prog
2. 2102.▲
   by orbital-decay 9y ago

   They are using 2D TDI CCDs, just like everyone else. This timelapse was likely shot with frame by frame exposures though. I'm not sure how it's possible with TDI.
3. 2103.▲
   by orbital-decay 9y ago

   There are planar Fourier capture arrays, which are also lensless, can be implemented with existing CMOS process and seem to be better by every metric than this. AFAIK they are currently being evaluated for eye tracking sensors which aren&#x
4. 2104.▲
   by orbital-decay 9y ago

   This is incredibly cool! I wonder what the simplest possible non-mechanical modulator is. (LCD?)
5. 2105.▲
   by orbital-decay 9y ago

   The pattern still needs to be different at each sampling, yes. Moving the grating is one way to do it, or it can be done with a micromirror array, for example.
6. 2106.▲
   by orbital-decay 9y ago

   You can do this even without any motion and possibly even with no focusing optics, just with a single sensor, diffraction grating and a lot of math. This is called single-pixel imaging and is an ongoing research topic in computational imagi