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how does Google Street View work?

Anonymous Mon 24 Nov 2008 08:58:00 No.299494 View View Reply Original Report

Quoted By:

so I was playing with Street View on my iPhone the other day and I was wondering how some of the angles were taken?

so that's the Google Street View car, there's that rig on top to take photos all around 360 degrees, okay not going to go into details in that. I'm just wondering how it takes a photo of the ground it's standing on?

invoke Street View on Google Maps and you get a 360 degrees view on any point available, even the ground the car is supposed to be over... how would the car take a clear photo of the ground it's on? like, there's no shadow or anything and we don't see the car itself

is it just Google photoshopping it out in every single Street View "point"?

11Equipment MakeOLYMPUS IMAGING CORP.Camera ModelSP560UZCamera SoftwareVersion 1.0Maximum Lens Aperturef/2.8111Image OrientationTop, Left-HandHorizontal Resolution72 dpiVertical Resolution72 dpiImage Created2008:06:30 15:58:38Exposure Time1/125 secF-Numberf/4.0Exposure ProgramCreativeISO Speed Rating50Exposure Bias0 EVMetering ModePatternLight SourceUnknownFlashNo Flash, CompulsoryFocal Length8.20 mmColor Space InformationsRGBImage Width1907Image Height1950RenderingNormalExposure ModeAutoWhite BalanceAutoScene Capture TypeStandardGain ControlNoneContrastNormalSaturationNormalSharpnessNormalCompression SettingSQMacro ModeNormal1

Anonymous

Anonymous Mon 24 Nov 2008 09:54:00 No.299526 Report

Quoted By:

Not sure how they do it myself. That street view rig is quite different from the one I've seen, by the way, the one that went past me once was a much shorter sealed white metal cylinder with eight or ten oval ports around it, each of which I assume contained a camera. Interesting result of having seen one, by the way, is that I'm standing there looking confused on the side of the road in street view.

Project !dashI8UpO.

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Project !dashI8UpO. Mon 24 Nov 2008 10:08:00 No.299538 Report

Quoted By:

Kinda like this I imagine. The fov is wide enough to get the road and maybe some of the car then when they stitch up the panorama, they can crop out or clone out the car bits since concrete or asphalt is an easy texture.

The effect is similar to the little planet here>>298367how you can't see my feet..

Anonymous

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Anonymous Mon 24 Nov 2008 10:17:00 No.299540 Report

Quoted By: >>299844

hmm

probably just stretch the texture out, still wouldn't want to be the person or people doing this thing, if it is even done by hand. silly google

Anonymous

Anonymous Mon 24 Nov 2008 10:49:00 No.299557 Report

Quoted By:

They get the ground underneath them when the move 10 fucking feet and it's behind them.

Anonymous

Anonymous Mon 24 Nov 2008 13:03:00 No.299637 Report

Quoted By:

all the photos are probably stitched togather using a better version of what microsoft calls photosynth.

http://photosynth.net/Default.aspx

im sure the stitching is mostly automated

h0z !1Ludp8tyms

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h0z !1Ludp8tyms Mon 24 Nov 2008 17:44:00 No.299726 Report

Quoted By:

ok so this is how its done.. (ive seen stuff like this before) and you can even buy the same camera...

its called a dodeca camera because it has 11 lenses... (that video) aranges like a dodecahedron. and mounted on top of a car..
it was done for google buy a company called "Immersive Media" and they mounted to camera ontop of vw beetles

it takes 11 video streams with around 100 million pixels and uses software (that comes with the camera) to stitch it.. so infact its not cloning out the car its using the miages infront of the car and lighing them up with the one around... (very clever)

the specs for the camera are:

• Eleven CCD 1/3" sensors in a modular dodecahedral array
• Unified timing and control, with custom image enhancement
• Field of view of full array: 360° horizontal, 290° vertical (91.7% of sphere).
• Each lens accepts standard filters and lens hoods
• Horizontal Resolution per channel: More than 450 TV lines
• Active picture elements per channel: 640 x 480 square pixels
• Electronic Shutter: From 1/30 sec. to 1/10,000 sec
• Automatic frame integration for low light modes down to 1/3 sec
• Transmission of camera data to base unit on gigabit Cat 5E cable (up to 400') or optional single-mode fiber (over 1 mile)

also pic related (its the actual camera)

and one last thing.. if you are considering one of these... they are a cool $45,000.00 ....

tl:dr google "dodeca 2360 immersive media" and you can read all about the camera

Anonymous

Anonymous Tue 25 Nov 2008 00:24:00 No.299840 Report

Quoted By:

can't wait until they come here so i can steal their fancy $45,000 camera right off the streets

Anonymous

Anonymous Tue 25 Nov 2008 00:28:00 No.299844 Report

Quoted By:

>>299540still wouldn't want to be the person or people doing this thing, if it is even done by hand. silly google

Would you prefer to be the person doing it that isn't doing it by hand?

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