If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Pixel blooming in Google Earth
I happened upon these two rather impressive blown highlights in Google
Earth, at: 150°59'49.49"E 33°49'0.68"S (and a hundred metres or so north of that) and and just wondering... Is this common in Google's sat shots? Anyone seen others? Didn't the goddam astronaut check his histogram before posting? It actually begs another set of questions... My scanner frequently blooms just like those shots if I'm scanning highly reflective items, but my digital cameras don't bleed in a linear fashion like that - just a big white patch. Is Google using a huge flatbed scanner in its satellites? -- Jeff R. |
#2
|
|||
|
|||
Pixel blooming in Google Earth
Jeff R. wrote:
I happened upon these two rather impressive blown highlights in Google Earth, at: 150°59'49.49"E 33°49'0.68"S (and a hundred metres or so north of that) and and just wondering... Is this common in Google's sat shots? Anyone seen others? Didn't the goddam astronaut check his histogram before posting? It actually begs another set of questions... My scanner frequently blooms just like those shots if I'm scanning highly reflective items, but my digital cameras don't bleed in a linear fashion like that - just a big white patch. Is Google using a huge flatbed scanner in its satellites? Detail that close in GE is from aerial photos/scanners, not satellites. Control of blooming is a function of the CCD design in the camera. I'm surprised that a scanner has blooming caused by the same type of sensor defect, as most scanners use a line sensor and not an area sensor. More likely that the reflections from your object are behaving unlike reflections from paper, and therefore being mis-interpreted. David |
#3
|
|||
|
|||
Pixel blooming in Google Earth
"Jeff R." wrote in message
... I happened upon these two rather impressive blown highlights in Google Earth, at: 150°59'49.49"E 33°49'0.68"S (and a hundred metres or so north of that) and and just wondering... Is this common in Google's sat shots? Anyone seen others? This is a flare from a direct sun reflection. These are not that unusual, though some of them are spectacular looking. http://www.youtube.com/watch?v=SFIfl8XGw1U Didn't the goddam astronaut check his histogram before posting? Yep - and, like most of us, he decided that he'd rather expose for the rest of the picture, rather than try for non-existent detail in a specular reflection. It actually begs another set of questions... My scanner frequently blooms just like those shots if I'm scanning highly reflective items, but my digital cameras don't bleed in a linear fashion like that - just a big white patch. Is Google using a huge flatbed scanner in its satellites? You may not be far off - aerial survey cameras sometimes use a linear arrangement to produce a continuous strip. Satellites may well do the same. -- Mike Russell - www.curvemeister.com |
#4
|
|||
|
|||
Pixel blooming in Google Earth
"Jeff R." wrote in message ... I happened upon these two rather impressive blown highlights in Google Earth, at: 150°59'49.49"E 33°49'0.68"S (and a hundred metres or so north of that) and and just wondering... Is this common in Google's sat shots? Anyone seen others? Didn't the goddam astronaut check his histogram before posting? It actually begs another set of questions... My scanner frequently blooms just like those shots if I'm scanning highly reflective items, but my digital cameras don't bleed in a linear fashion like that - just a big white patch. Is Google using a huge flatbed scanner in its satellites? -- Jeff R. Not really. As another mentioned the closeup photos are shot from planes. And there is a plexiglas window. So when they get bright reflections from a surface (such as a body of water when the sun is low and in the general direction that the camera is pointing) the plexi window tends to turn it into a streak. I have seen that in some of the higher res photos you can spot some of the blurry imperfections and dirt on the window. I have even seen (in some of the earliest images) a reflection of items in the cockpit behind the camera. Randy B. |
#5
|
|||
|
|||
Pixel blooming in Google Earth
Jeff R. wrote:
I happened upon these two rather impressive blown highlights in Google Earth, at: 150°59'49.49"E 33°49'0.68"S (and a hundred metres or so north of that) and and just wondering... Is this common in Google's sat shots? Anyone seen others? Didn't the goddam astronaut check his histogram before posting? It actually begs another set of questions... My scanner frequently blooms just like those shots if I'm scanning highly reflective items, but my digital cameras don't bleed in a linear fashion like that - just a big white patch. Is Google using a huge flatbed scanner in its satellites? -- Jeff R. In all probability, the shots are taken from a satellite that just takes the pictures, some of which will have reflections of the sun, which WILL result in blown out whites. Quitcherbitchin. |
#6
|
|||
|
|||
Pixel blooming in Google Earth
On Sat, 12 Jan 2008 07:14:06 GMT, "David J Taylor"
wrote in : Jeff R. wrote: I happened upon these two rather impressive blown highlights in Google Earth, at: 150°59'49.49"E 33°49'0.68"S (and a hundred metres or so north of that) and and just wondering... Is this common in Google's sat shots? Anyone seen others? Didn't the goddam astronaut check his histogram before posting? It actually begs another set of questions... My scanner frequently blooms just like those shots if I'm scanning highly reflective items, but my digital cameras don't bleed in a linear fashion like that - just a big white patch. Is Google using a huge flatbed scanner in its satellites? Detail that close in GE is from aerial photos/scanners, not satellites. Control of blooming is a function of the CCD design in the camera. I'm surprised that a scanner has blooming caused by the same type of sensor defect, as most scanners use a line sensor and not an area sensor. More likely that the reflections from your object are behaving unlike reflections from paper, and therefore being mis-interpreted. A common problem in cheaper scanners is lens flare. -- Best regards, John Navas Panasonic DMC-FZ8 (and several others) |
#7
|
|||
|
|||
Pixel blooming in Google Earth
On Sat, 12 Jan 2008 02:59:30 -0600, Ron Hunter
wrote in : Jeff R. wrote: I happened upon these two rather impressive blown highlights in Google Earth, at: 150°59'49.49"E 33°49'0.68"S (and a hundred metres or so north of that) and and just wondering... Is this common in Google's sat shots? Anyone seen others? Didn't the goddam astronaut check his histogram before posting? It actually begs another set of questions... My scanner frequently blooms just like those shots if I'm scanning highly reflective items, but my digital cameras don't bleed in a linear fashion like that - just a big white patch. Is Google using a huge flatbed scanner in its satellites? In all probability, the shots are taken from a satellite that just takes the pictures, some of which will have reflections of the sun, which WILL result in blown out whites. Quitcherbitchin. High-res images have often been taken by aircraft rather than satellite. -- Best regards, John Navas Panasonic DMC-FZ8 (and several others) |
#8
|
|||
|
|||
Pixel blooming in Google Earth
"Jeff R." wrote in message ... I happened upon these two rather impressive blown highlights in Google Earth, at: 150°59'49.49"E 33°49'0.68"S (and a hundred metres or so north of that) and and just wondering... Is this common in Google's sat shots? Anyone seen others? Here's nice starburst one. 52°30'40.78"N 4°56'59.52"E |
#9
|
|||
|
|||
Pixel blooming in Google Earth
/\BratMan/\ wrote:
"Jeff R." wrote in message ... I happened upon these two rather impressive blown highlights in Google Earth, at: 150°59'49.49"E 33°49'0.68"S (and a hundred metres or so north of that) and and just wondering... Is this common in Google's sat shots? Anyone seen others? Here's nice starburst one. 52°30'40.78"N 4°56'59.52"E A nice mixture of sensor overload and diffraction spikes! David |
#10
|
|||
|
|||
Pixel blooming in Google Earth
/\BratMan/\ wrote:
"Jeff R." wrote in message ... I happened upon these two rather impressive blown highlights in Google Earth, at: 150°59'49.49"E 33°49'0.68"S (and a hundred metres or so north of that) and and just wondering... Is this common in Google's sat shots? Anyone seen others? Here's nice starburst one. 52°30'40.78"N 4°56'59.52"E Giant disco ball?? |
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
New Google Owner agrees to use google for spelling purposes | [email protected] | Digital Photography | 0 | March 19th 07 05:16 AM |
what is Dynamic PIXEL and Real Type pixel means | [email protected] | Digital SLR Cameras | 0 | September 19th 06 11:57 AM |
Google Earth Beta | [email protected] | Digital Photography | 9 | June 25th 06 08:28 AM |
Google Earth Beta | [email protected] | Digital Photography | 6 | June 24th 06 08:07 AM |
Canon's finest imager, pixel per pixel | RichA | Digital SLR Cameras | 9 | April 10th 06 01:54 PM |