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#21
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I agree with John. I think the small dark images on the hit site are
just for reference. I believe the concept is for you to download the kml file and plug in the hit coordinates into GE. Then browse that area. I also found that if you do a print screen of the area, load it into a photo processor and brighten the image, it helps. Also, the ruler can be put to good use in GE. If you find anything interesting, you can measure it to see if it's in the ballpark for a plan wreckage. Here's an example: http://images5.fotopic.net/?iid=yorp...ze=1&nostamp=1 All I did was lighten the screen shot a little and annotate the picture. The splotch is about 22 feet long using the GE ruler. I'm sure it's nothing - probably just a rock ;-) But it serves as an example of how one can use GE, the ruler and the coordinate system to locate possibilities. I also found that once the kml file was loaded into GE, it became very sluggish - much more so than normally using GE. Maybe my machine is lacking - Win-XP SP2, 1 gig of RAM, 3 GHz processor. I'm sure more RAM would help. Arthur Hass Reston, VA John Tyson wrote: wrote in message ... In sci.geo.satellite-nav John Tyson wrote: Clarence, did you notice any discrepancy in the dimensions you saw in Google Earth vs. those they are showing in the "hit" images? Seemed to me they differed by almost a factor of two on the few I looked at. The image shown on the web site is too small and dark for me to think much about it. I noticed that they indicate the image is roughly 278 feet square, but that has nothing to do with the initial zoom when you "fly to" the coordinate in Google Earth. My initial zoom shows a ruler of 948 feet, and an eye altitude of 3281 ft. They suggest an eye altitude of 1500 feet for Google Earth. The hit that I just accepted is near some houses, so I have some judgment of whether I would be able to spot a car or small aircraft. If they expect people to just review the image on the web page, that seems fairly worthless to me, but maybe it will work. If he were around 37.422,-122.084 he would be easier to spot. There, I can zoom to a ruler size of 40 feet and still see crisp imagery. -- Clarence A Dold - Hidden Valley Lake, CA, USA GPS: 38.8,-122.5 The small images are definitely not usable. I can make out some detail on the screen, but as you say they are almost black. Mainly though, the pixel resolution in the images is much coarser than if you go to the Google Earth location. I think they should probably have emphasized that in the instructions, since some people may be trying to search the small images. One thing I found useful, in both the presented images and the Google Earth view, is to load the image into photoshop and enhance the contrast; on my screen the Google Earth image is also very dark and lacks contrast. I haven't looked, but there might be a Google Earth setting to adjust contrast. Per my original comment, the 278 feet seems to be closer to 350 or 400 feet in the Google Earth imagery, so my "factor of two" was a little high. John |
#22
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"Larry Dighera" wrote in message
... On Wed, 12 Sep 2007 07:07:10 GMT, miket6065 wrote in : . In addition, you can get a search area assigned to you on Amazon's Mechanical Turk by going here http://www.mturk.com/mturk/preview?g...21T60&kw=Flash 7. Then press the "Accept Hit" button and log in. Even though you may already have an Amazon account, you will have to agree to: Snip, like, 40K bytes of text So, like, do you get paid by the word or something? -- Geoff The Sea Hawk at Wow Way d0t Com remove spaces and make the obvious substitutions to reply by mail When immigration is outlawed, only outlaws will immigrate. |
#23
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In sci.geo.satellite-nav Ed edATridersiteDOTorg wrote:
http://images5.fotopic.net/?iid=yorp...ze=1&nostamp=1 All I did was lighten the screen shot a little and annotate the picture. The splotch is about 22 feet long using the GE ruler. I'm sure it's I see that as about 15 feet long. I wouldn't have considered it a significant hit, but looking away, and then scanning that area again after a while, it does catch my eye. I have an eye altitude of 350 feet, and a scale legend at 99 feet to match your screen shot. If I turn on ground altitude by clicking Terrain in layers I see numbers that I think are similar to yours, but I think the elevation above ground is more interesting for this case. -- Clarence A Dold - Hidden Valley Lake, CA, USA GPS: 38.8,-122.5 |
#25
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On Wed, 12 Sep 2007 16:40:58 +0000, dold wrote:
http://maps.google.com/maps?f=q&ll=3...11,-119.000258 Even simpler, I found this shortest URL on another group. http://maps.google.com/?q=38.618111,-119.000258 I agree, it would be wonderful to have the coordinates of the 8 previously uunknown crash sites. Does anyone have coordinates for crash sites that haven't been cleaned up? It would be a great reference for out search effort! |
#26
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![]() "Dominic Sexton" wrote in message ... In article , John Tyson writes The small images are definitely not usable. They definitely are here. Only on a few of them have I felt the need to use Google Earth to zoom in on part of the image that shows something unusual. I can make out some detail on the screen, but as you say they are almost black. Mainly though, the pixel resolution in the images is much coarser than if you go to the Google Earth location. I think they should probably have emphasized that in the instructions, since some people may be trying to search the small images. I'm sure many are and in my experience that is perfectly acceptable. One thing I found useful, in both the presented images and the Google Earth view, is to load the image into photoshop and enhance the contrast; on my screen the Google Earth image is also very dark and lacks contrast. Sounds like you might benefit from adjusting your monitor: http://www.users.on.net/~julian.robi...st-monitor.htm If it is an LCD flat panel you may want to experiment with the angle you view it from too as that can have a marked influence on the brightness and contrast. -- Dominic Sexton I retract my original statement about the pixel resolution being too coarse; in reality it's about as good as what you get in Google Earth. The Google Earth imagery "looks" better, but this is subjective I think; the detail you can resolve is about the same in the small image and in Google Earth. (By my calculations the pixel interval in the small images is about 1.5 feet. The title of the kml file implies 1 meter resolution, but it's not clear if this is the pixel interval in the original imagery or some other measure of the image resolution. In any case, the 1.5 feet of the small images seems adequate for the job.) Regarding the monitor adjustments: You are probably right; I'm using an LCD monitor, and the normal settings don't pull out details in the lowest levels, even at optimum viewing angles. As far as I know I don't have any way of adjusting the brightness/contrast/gamma on the monitor, so going to Photoshop or some other image processing seems to be my only alternative to pulling out detail in the imagery. I was thinking about this today while away from my computer, and it occurred to me that the darkness of the basic imagery may have been intentional; if they expect the airplane to be significantly brighter than the background, they may have darkened the normal imagery so a brighter object would stand out. If anyone knows the coordinates of some of the wrecks they have found I think it would be interesting to look at these in order to get a better idea of what to look for. John |
#27
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![]() "John Tyson" wrote in message ... If anyone knows the coordinates of some of the wrecks they have found I think it would be interesting to look at these in order to get a better idea of what to look for. John Sorry Clarence; I did read your earlier message, but overlooked your asking the same question ![]() John |
#28
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On Wed, 12 Sep 2007 17:11:57 -0400, Ed edATridersiteDOTorg wrote:
I agree with John. I think the small dark images on the hit site are just for reference. I believe the concept is for you to download the kml file and plug in the hit coordinates into GE. Then browse that area. I also found that if you do a print screen of the area, load it into a photo processor and brighten the image, it helps. Also, the ruler can be put to good use in GE. If you find anything interesting, you can measure it to see if it's in the ballpark for a plan wreckage. Here's an example: http://images5.fotopic.net/?iid=yorp...ze=1&nostamp=1 All I did was lighten the screen shot a little and annotate the picture. The splotch is about 22 feet long using the GE ruler. I'm sure it's nothing - probably just a rock ;-) But it serves as an example of how one can use GE, the ruler and the coordinate system to locate possibilities. I also found that once the kml file was loaded into GE, it became very sluggish - much more so than normally using GE. Maybe my machine is lacking - Win-XP SP2, 1 gig of RAM, 3 GHz processor. I'm sure more RAM would help. I noticed that too, it is so slooooooow it's painful to move your view. Arthur Hass Reston, VA John Tyson wrote: wrote in message ... In sci.geo.satellite-nav John Tyson wrote: Clarence, did you notice any discrepancy in the dimensions you saw in Google Earth vs. those they are showing in the "hit" images? Seemed to me they differed by almost a factor of two on the few I looked at. The image shown on the web site is too small and dark for me to think much about it. I noticed that they indicate the image is roughly 278 feet square, but that has nothing to do with the initial zoom when you "fly to" the coordinate in Google Earth. My initial zoom shows a ruler of 948 feet, and an eye altitude of 3281 ft. They suggest an eye altitude of 1500 feet for Google Earth. The hit that I just accepted is near some houses, so I have some judgment of whether I would be able to spot a car or small aircraft. If they expect people to just review the image on the web page, that seems fairly worthless to me, but maybe it will work. If he were around 37.422,-122.084 he would be easier to spot. There, I can zoom to a ruler size of 40 feet and still see crisp imagery. -- Clarence A Dold - Hidden Valley Lake, CA, USA GPS: 38.8,-122.5 The small images are definitely not usable. I can make out some detail on the screen, but as you say they are almost black. Mainly though, the pixel resolution in the images is much coarser than if you go to the Google Earth location. I think they should probably have emphasized that in the instructions, since some people may be trying to search the small images. One thing I found useful, in both the presented images and the Google Earth view, is to load the image into photoshop and enhance the contrast; on my screen the Google Earth image is also very dark and lacks contrast. I haven't looked, but there might be a Google Earth setting to adjust contrast. Per my original comment, the 278 feet seems to be closer to 350 or 400 feet in the Google Earth imagery, so my "factor of two" was a little high. John |
#29
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On Wed, 12 Sep 2007 19:11:00 -0400, "Capt. Geoffrey Thorpe" The Sea
Hawk at wow way d0t com wrote in : "Larry Dighera" wrote in message .. . On Wed, 12 Sep 2007 07:07:10 GMT, miket6065 wrote in : . In addition, you can get a search area assigned to you on Amazon's Mechanical Turk by going here http://www.mturk.com/mturk/preview?g...21T60&kw=Flash 7. Then press the "Accept Hit" button and log in. Even though you may already have an Amazon account, you will have to agree to: Snip, like, 40K bytes of text So, like, do you get paid by the word or something? Do you think it's reasonable for Amazon to _require_ participants (who already have an Amazon account or not) in the search for Fossett to agree to payment terms before Amazon will permit them volunteer to help? |
#30
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On Thu, 13 Sep 2007 15:28:49 GMT, Larry Dighera wrote in :
Do you think it's reasonable for Amazon to _require_ participants (who already have an Amazon account or not) in the search for Fossett to agree to payment terms before Amazon will permit them volunteer to help? Short answer: yes. Explanation: The Mechanical Turk is something Amazon runs as a business. It happens to be useful for distributing a few hundred thousand images to volunteers to look at. I read over the agreement and learned about the Mechanical Turk before signing the agreement. It's just boilerplate associated with the already-existing MT business that friends of Fossett are using to do the search. It's no more life-threatening than hundreds, if not thousands, of boilerplate agreements that I've signed in the 24 years I've been using computers. I've done 720 images so far, working a few minutes here and there. I don't have any great hope that this will find Fossett, but I don't mind pitching in from time to time anyway. My guess is that the resolution of the images is going to be too poor to see a plane nose-down in a forest, crumpled up against a canyon wall, or crashed-and-burned. Marty -- Big-8 newsgroups: humanities.*, misc.*, news.*, rec.*, sci.*, soc.*, talk.* See http://www.big-8.org for info on how to add or remove newsgroups. |
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