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From: Karl E. Peterson on 24 Jun 2010 19:15 mbyerley submitted this idea : > "Karl E. Peterson" <karl(a)exmvps.org> wrote in message > news:i00i0m$nmk$1(a)news.eternal-september.org... >> sorry.no.koolaid(a)for.me presented the following explanation : >>> On Mon, 21 Jun 2010 14:55:56 -0700, Karl E. Peterson <karl(a)exmvps.org> >>> wrote: >>> in <hvon5c$9lh$1(a)news.eternal-september.org> >>>> Karl E. Peterson formulated the question : >>>>> (which is why I had to be off climbing a mountain, rather than sitting >>>>> at a keyboard on Friday! <bg>), >>>> >>>> Or, for anyone without Google Earth to open that KML in the last post... >>>> >>>> http://commondatastorage.googleapis.com/static.panoramio.com/photos/original/30150296.jpg >>> >>> That's absolutely amazing. Just how close to 360� does your 8:1 aspect >>> ratio get you? Is it multiple exposures or computer assisted panning >>> maybe? >> >> I wish I had those answers for you. I found the image on Panramio, via >> Google Earth. (I attached the KML to the initial post, too.) Here's the >> original: http://www.panoramio.com/photo/30150296 >> >> I just did a little wrap-around in PSP, though. That image is precisely >> 360�. What's more amazing to me is that the exposure is consistent >> throughout. I'm thinking there's probably dozens (hundreds?) of shots >> involved there, to avoid any sort of distortion, huh? > > I'm pretty sure it can be had in one go with a fisheye and correction > software... You gotta be kidding? I thought the jaggedness at top/bottom indicated a lot of stichery. -- ..NET: It's About Trust! http://vfred.mvps.org Customer Hatred Knows No Bounds at MSFT ClassicVB Users Regroup! comp.lang.basic.visual.misc Free usenet access at http://www.eternal-september.org
From: Dee Earley on 29 Jun 2010 06:48 On 24/06/2010 22:17, Karl E. Peterson wrote: > sorry.no.koolaid(a)for.me presented the following explanation : >> On Mon, 21 Jun 2010 14:55:56 -0700, Karl E. Peterson <karl(a)exmvps.org> >> wrote: >> in <hvon5c$9lh$1(a)news.eternal-september.org> >>> Karl E. Peterson formulated the question : >>>> (which is why I had to be off climbing a mountain, rather than >>>> sitting at a keyboard on Friday! <bg>), >>> >>> Or, for anyone without Google Earth to open that KML in the last post... >>> >>> http://commondatastorage.googleapis.com/static.panoramio.com/photos/original/30150296.jpg >>> >> >> That's absolutely amazing. Just how close to 360� does your 8:1 aspect >> ratio get you? Is it multiple exposures or computer assisted panning >> maybe? > > I wish I had those answers for you. I found the image on Panramio, via > Google Earth. (I attached the KML to the initial post, too.) Here's the > original: http://www.panoramio.com/photo/30150296 > > I just did a little wrap-around in PSP, though. That image is precisely > 360�. What's more amazing to me is that the exposure is consistent > throughout. I'm thinking there's probably dozens (hundreds?) of shots > involved there, to avoid any sort of distortion, huh? Distortion wise, as long as the lens points out at 90deg to the rotation point, you wont get any distortion (As it is all "flat") The curved distortion appears when the camera is angled up or down relative to the rotation plane. There has also been blending, gap filling and cropping (see the top edge) -- Dee Earley (dee.earley(a)icode.co.uk) i-Catcher Development Team iCode Systems (Replies direct to my email address will be ignored. Please reply to the group.)
From: Karl E. Peterson on 29 Jun 2010 14:24
Dee Earley used his keyboard to write : > On 24/06/2010 22:17, Karl E. Peterson wrote: >> sorry.no.koolaid(a)for.me presented the following explanation : >>> On Mon, 21 Jun 2010 14:55:56 -0700, Karl E. Peterson <karl(a)exmvps.org> >>> wrote: >>> in <hvon5c$9lh$1(a)news.eternal-september.org> >>>> Karl E. Peterson formulated the question : >>>>> (which is why I had to be off climbing a mountain, rather than >>>>> sitting at a keyboard on Friday! <bg>), >>>> >>>> Or, for anyone without Google Earth to open that KML in the last post... >>>> >>>> http://commondatastorage.googleapis.com/static.panoramio.com/photos/original/30150296.jpg >>>> >>> >>> That's absolutely amazing. Just how close to 360� does your 8:1 aspect >>> ratio get you? Is it multiple exposures or computer assisted panning >>> maybe? >> >> I wish I had those answers for you. I found the image on Panramio, via >> Google Earth. (I attached the KML to the initial post, too.) Here's the >> original: http://www.panoramio.com/photo/30150296 >> >> I just did a little wrap-around in PSP, though. That image is precisely >> 360�. What's more amazing to me is that the exposure is consistent >> throughout. I'm thinking there's probably dozens (hundreds?) of shots >> involved there, to avoid any sort of distortion, huh? > > Distortion wise, as long as the lens points out at 90deg to the rotation > point, you wont get any distortion (As it is all "flat") > The curved distortion appears when the camera is angled up or down relative > to the rotation plane. There's still the angular distortion that's always present as you move towards the edge of an image. The best way to envision it is to think of an aerial shot, looking down at trees or buildings. Those in the center of the image appear to be perfectly vertical, but as you move towards the edges they appear to lean at increasing angles outward. It makes sense, because you're looking at those objects more sideways than the ones you're looking straight down on. Same thing would happen with horizontal shots, but wouldn't be as obvious because so many fewer natural objects are aligned that way. > There has also been blending, gap filling and cropping (see the top edge) yeah -- ..NET: It's About Trust! http://vfred.mvps.org |