What's Off in This Google Earth Image of Mid-Town NYC?
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neutrino
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Buildings seem to lean in opposite ways?
Moridin
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I can think of several logical explanations for the weird image.
Perhaps it is manipulated? Each section represents a distinct difference in angle.
http://www.filehive.com/files/0523/lined.png
It is true that strong winds can move the top of the larger buildings several meters, but I'm not sure that sounds reasonable from the image. It also would not explain how tow buildings standing next to each other would sway in different ways.
Images compiled from different sources or points in time?
Perhaps it is manipulated? Each section represents a distinct difference in angle.
http://www.filehive.com/files/0523/lined.png
It is true that strong winds can move the top of the larger buildings several meters, but I'm not sure that sounds reasonable from the image. It also would not explain how tow buildings standing next to each other would sway in different ways.
Images compiled from different sources or points in time?
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Yeah, like post #14 in this thread from a year ago. Makes you woozy...
https://www.physicsforums.com/showthread.php?t=125986
https://www.physicsforums.com/showthread.php?t=125986
matthyaouw
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Google's high res imagery is done by making mosaics of lots of different aerial photos, so angles will often seem a bit off. Just to confuse things more, the photos aren't always from the same date, so you can pass between up to date photos and those several years old without knowing.
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Different satellite positions, which means different orbits/different times. There could be sequential frames which would have different angles E-W orientation, the different N-S angles indicate different orbit assuming the same camera orientation.Moridin said:
Shadows are different, so that clearly means different time of day or different days.
The composite certainly could be 'manipulated' from different satellites.
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Ground sinking in NYC?
Gravitational wave passing?
Escher works on Google Maps?
Buildings lean according to political affiliation?
It might interesting to see the scene from a different viewpoint (i.e. not overhead)... of course, without the 3D building layer.
Gravitational wave passing?
Escher works on Google Maps?
Buildings lean according to political affiliation?
It might interesting to see the scene from a different viewpoint (i.e. not overhead)... of course, without the 3D building layer.
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robphy said:
The images on Google Maps are not live images, they're composites of many images, often taken from different angles and times of day. Where my house is, Google Maps still shows a big clearing of dirt from 3 years ago when construction started here. There are a lot of places where high resolution images aren't available yet, and they get patched in as they get them. In all likelihood, they had several aerial photos of NYC, but then a gap was left for Rockefeller Center, so a single photo of that block was added between the other stitched-together images. I do agree that it's very Escher-esque though.
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Normally you can very clearly see the stitching, sometimes you can see summer and winter scenes next to each other in the same image the guy that stitched this image back together really must be a perfectionist: at the first eye nothing is wrong with the picture, even when looking closer you cannot see any stitch lines, the fact that the picture leaves you a bit 3d-disoriented is the only clue that something is wrong
the guy that stitched this image back together really must be a perfectionist: at the first eye nothing is wrong with the picture, even when looking closer you cannot see any stitch lines, the fact that the picture leaves you a bit 3d-disoriented is the only clue that something is wrong
neutrino
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If (S)he is a perfectionist, then this guy must be God! ;)
http://www.docbert.org/MP/
http://www.docbert.org/MP/
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That definitely is an amazing picture, but it doesn't take a geneious to put it back together: there is special software that can piece together an image when there is about 20% overlap at the edges.
I doubt that is being done with the Google images, since the pictures are so different. How would the software know that the building that is leaning over the wrong way should be projected over the street of the picture next to it and not under the street?
I doubt that is being done with the Google images, since the pictures are so different. How would the software know that the building that is leaning over the wrong way should be projected over the street of the picture next to it and not under the street?
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If you want some fancy stitching in 3D, check out
http://labs.live.com/photosynth/ , a preview from Microsoft.
(Don't run this on an old or slow computer.)
http://labs.live.com/photosynth/ , a preview from Microsoft.
(Don't run this on an old or slow computer.)
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