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Astrophotography with Night Sight on Pixel Phones

167 点作者 JayXon超过 5 年前

12 条评论

emptybits超过 5 年前
This is amazing. Now just FYI, for those curious, some recent &quot;old guard&quot; innovations by pro camera makers for astrophotography include:<p>1. Leveraging the multi-axis image-stabilizing movement available to an in-camera DSLR sensor with GPS for the purpose of tracking the sky during a long-ish exposure to reduce star trails. Ricoh-Pentax Astrotracer. <a href="http:&#x2F;&#x2F;www.ricoh-imaging.co.jp&#x2F;english&#x2F;photo-life&#x2F;astro&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.ricoh-imaging.co.jp&#x2F;english&#x2F;photo-life&#x2F;astro&#x2F;</a><p>2. Removing the camera&#x27;s IR filter, allowing it to capture hydrogen-alpha rays (656nm). This captures energy (image, color) not otherwise seen by normal camera sensors. Canon EOS Ra. <a href="https:&#x2F;&#x2F;www.usa.canon.com&#x2F;internet&#x2F;portal&#x2F;us&#x2F;home&#x2F;products&#x2F;details&#x2F;cameras&#x2F;eos-dslr-and-mirrorless-cameras&#x2F;mirrorless&#x2F;eos-ra" rel="nofollow">https:&#x2F;&#x2F;www.usa.canon.com&#x2F;internet&#x2F;portal&#x2F;us&#x2F;home&#x2F;products&#x2F;d...</a><p>I know this only because I&#x27;ve been researching a DSLR&#x2F;mirrorless camera upgrade but also delaying it regularly while I&#x27;m reminded how excellent phone cameras have become! Unless you&#x27;re a pro, a pixel-peeper, an artist, or just someone who simply enjoys the machinery and process.
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saiya-jin超过 5 年前
As a full frame DSLR shooter (Nikon D750 + 20mm F1.8), this is wild considering those crappy tiny sensors on phones. To get similar (albeit much, much sharper) results, I have to lug around 2kg of camera and lens plus bulky tripod.<p>Even with this, to get those dark dust clouds and stark colors some heavy postprocessing is required (which I mostly don&#x27;t do because I consider it too much an alteration of original image, but it creates more interesting image). Don&#x27;t think for a second that those superb images you can see everywhere are not literally over-painted in Photoshop (look at online tutorials on how to do it if you don&#x27;t believe me).<p>I guess to make things impressive, google guys went to some proper remote desert far from any artificial light. And unless I missed something, they still used some tripod. In european alps, this kind of result is practically impossible - there is always some tiny village in every valley, and even if not light pollution seeps from far. One night panorama I have has quite strong glow coming from village of Chamonix some 15km far, that is on the other side of massive Mont Blanc range [1]. Anything can be achieved if you start playing a lot with Photoshop brushes, layers etc. but for me its one step too far.<p>Imagine what results can be had when such algorithms are paired to a full frame (or bigger) sensor!<p>[1] <a href="https:&#x2F;&#x2F;www.flickr.com&#x2F;photos&#x2F;99251154@N04&#x2F;22790364795&#x2F;in&#x2F;album-72157660842726331&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.flickr.com&#x2F;photos&#x2F;99251154@N04&#x2F;22790364795&#x2F;in&#x2F;al...</a>
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rbritton超过 5 年前
Zoomed out, those photos aren’t terrible, but if you click to view a higher resolution version, you can see the softness created by the noise removal algorithm. Based on my experience, the image quality is comparable to DSLRs of about ten years ago. Noise removal is a bandaid. In astrophotography, it will virtually always look softer than reality actually is, and it will also have removed actual stellar objects. There is no substitute for a better, lower noise sensor, but you work with what you have.<p>Sensor size is inversely correlated with the noise level. Smaller sensors have more noise where the least noise is on full frame (i.e., 35mm) or larger sensors. Phones have small sensors.
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bla3超过 5 年前
This is super cool tech. But I can&#x27;t help thinking that this shows that the Pixel camera lead must be someone with an engineering background who got nerd sniped by this problem because it&#x27;s cool and hard to do. Someone with a product background would&#x27;ve focused on something less niche.<p>On the other hand, some people who like Google like it because it still sometimes works on geeky, cool, fun stuff instead of being super product focused.
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JNRowe超过 5 年前
I can&#x27;t read about commodity hardware stargazing without my mind drifting to 2bit Astrophotography¹ which used the Gameboy Camera².<p>If you compare a paper star chart from the Gameboy era to Stellarium³ and a Pixel, then it can only lead you to wonder where we will be in another 20 years.<p>1. <a href="http:&#x2F;&#x2F;pietrow.net&#x2F;astrogb.html" rel="nofollow">http:&#x2F;&#x2F;pietrow.net&#x2F;astrogb.html</a><p>2. <a href="https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Game_Boy_Camera" rel="nofollow">https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Game_Boy_Camera</a><p>3. <a href="http:&#x2F;&#x2F;www.stellarium.org" rel="nofollow">http:&#x2F;&#x2F;www.stellarium.org</a>
cageface超过 5 年前
I&#x27;d prefer to see Google focus on just making the Pixel line better everyday phones than working on exotic stuff like this or the motion sensor they added in the Pixel 4. Right now there&#x27;s not much reason to choose a Pixel unless stock Android is your top priority.
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habosa超过 5 年前
The photos are gorgeous and I would definitely use this mode.<p>Astrophotography always kind of rubs me the wrong way though because that&#x27;s not how it looks. Even if you go out to somewhere that&#x27;s really dark, like a large National Park, and wait for a clear night it&#x27;s never going to look in your eye like it does on Instagram. Don&#x27;t get me wrong, what you do see is absolutely magnificent, it&#x27;s just not what&#x27;s in those pictures.<p>Seeing the galaxy with your own eyes is one of the most majestic things you&#x27;ll ever witness. It&#x27;s something that has inspired spontaneous prayer throughout history. It doesn&#x27;t really need a filter.
jakecopp超过 5 年前
If all the advancements in smartphone photography is in software, why aren&#x27;t DSLR&#x2F;mirrorless manufactures doing it too?<p>I don&#x27;t want my camera to have a touchscreen&#x2F;social media&#x2F;wifi but it&#x27;d be cool if Adobe Camera Raw&#x2F;some alternative could do this stuff!
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PopePompus超过 5 年前
The photos taken in this mode are amazing. But I think they are improved a lot if a vignetting correction is applied. Without that correction, the sky brightness is much greater near the center of the field than near the edges.
kohtatsu超过 5 年前
Any recommendations for tripods&#x2F;cases?<p>iPhone 11 Pro here.
imvetri超过 5 年前
What are the possibilities that this AI camera app is not faking the image.<p>Here is why I ask - It has gyro - so knows whether we are pointing at sky or not. - AI checks whether its a clear sky - if yes - post fake image. If no - Dont risk getting caught. - Time + geo spacing - Gives the angle, position of camera relative to the space above us.
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ganitarashid超过 5 年前
As long as you manually control the exposure and exposure time, the same can be achieved with an iPhone camera. This is not specific to Pixel.
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