From: Karl E. Peterson on
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.

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From: Dee Earley on
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

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Please reply to the group.)
From: Karl E. Peterson on
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

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