5 ms·
I imagine the minuscule vibrations of a shutter make it a natural fit to the already existing image stacking pipeline, correct?
by vanderZwan 5y ago
I imagine the minuscule vibrations of a shutter make it a natural fit to the already existing image stacking pipeline, correct?
- gliptic 5y agoI'm not sure what you mean. Mechanical shutters have no upsides I'm aware of :). Astro cameras use electronic shutters. EDIT: The dithering, or offsetting, is done by moving the telescope slightly between exposures. During exposures you want it to track the object you're photographing as accurately as possible. I imagine vibrations are a detriment even in the Pixel phone processing. It would be better if the phone could move instantly in slightly different directions and take steady raw photos in each.
- vanderZwan 5y agoAh, I was thinking of amateur astrophotography - although these days you can just set the mechanical shutter in many consumer DSLRs to stay open too I think.
- galangalalgol 5y agoI think maybe you were considering the vibrations a source of noise for compressed sensing? For CS to work well you generally want to know the convolved noise. So a super accurate accelerometer might be able to measure random vibrations and do even better when they are present than absent. Not sure if phone accelerometers are that good.
- xhkkffbf 5y agoYes, I believe Google's team publicly says it helps add just enough random translation.
- IAmEveryone 5y agoDo camera phones have mechanical shutters? I'm almost certain they don't.
- dr_zoidberg 5y agoOn camera phones the random movements come from the users own instability when taking pictures.