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The issue is light. Your typical smartphone camera in its default package simply cannot get enough light to create a stars-against-dark-background image regardl
by sansnomme 8y ago
The issue is light. Your typical smartphone camera in its default package simply cannot get enough light to create a stars-against-dark-background image regardless of how much machine learning and signal processing you throw at it. It's much easier when you have a massive roof mounted lens. There are ways to improve gain and boost the optical signal but there are limits to what's possible in a smartphone without hardware additions or modifications (even with dual cameras like modern flagships).
- joshvm 8y agoYou could probably do it with a Pixel (or something else with night sight) and astrometry.net.
- sansnomme 8y agoDoesn't work, unless you have a tripod and use a significant exposure time. Perhaps. It's nowhere near "AR" levels. If you are going to go that far, save yourself some trouble and get a proper astrophotography setup. Also, astronomy.net is overkill for this.
- joshvm 8y agoNot for AR perhaps, but on a phone is doable. See for example (not Night Sight though): https://ai.googleblog.com/2017/04/experimental-nighttime-photography-with.html https://ai.googleblog.com/2017/04/experimental-nighttime-pho...
- sansnomme 8y agoPrecisely as I said. If you are going to get a tripod rig and long exposure then might as well save some effort and just do a full astrophotography system (star trackers are cheaper than you think) instead of trying to squeeze more light from tiny phone cameras. Fwiw the OP's point of reference in the child post is Google Sky Map. The Pixel's AI post is so far from the UX required for AR that there's honestly not much point to it. If you are going to do night time photography, go get a lens or at least a photomultiplier. The Pixel's AI camera is a nice gimmick for improving nighttime photography but using it for AR live celestial navigation is a bit like key chording a Gameboy to control a XBox. Theoretically usable given enough patience and time but way out of the horizon from its intended UX. I have tried out the Night Sight before and it's nowhere close to Point and Shoot for astrophotography. You can build a celestial navigation system pretty easily for e.g. your car. You don't even need a lot of computational power. A Raspberry Pi would be overkill but considering how cheap the RPi Zeros are, might want to consider using one.
- SiempreViernes 8y agoAstrometry.net is an amazing achivement!