PanoTools:
Re: Need help stitching my helicopter panorama!
Luca Vascon 2005-Jun-14 11:29:12
Rotfl!!!
The solution is to hung up the eventcam by Me and Martino Agnoletto!!!
check the Agnos site!!
§;-))))
----- Original Message -----
From: "Douglas L. Urner" <#removed#>
To: <#removed#>
Sent: Thursday, June 09, 2005 6:19 AM
Subject: Re: [PanoTools] Need help stitching my helicopter panorama!
>I goofed on the price of a D70, actually they are only $75. D100s
> which have a wired remote are the same price these days.
>
> Doug
> --
> Douglas L. Urner <#removed#> Port Orchard, WA +1 360 769 5565
>
>
> On Jun 8, 2005, at 11:04 :42, Douglas L. Urner wrote:
>
>> Here's a thought. Around here a D70 rents for around $150/day +
>> about $20/day for a fisheye. Perhaps you could build a simple mount
>> for 4 D70s and dangle them below the hovering helicopter and trigger
>> them with a remote (or use the 's' models instead and use a wired
>> remote). The camera rental would be about a wash with the helicopter
>> time (assuming you only have on D70) and you'd be pretty sure to get
>> a good sequence. Paralax would only be due to the difference in
>> camera positions (probably less than a foot).
>>
>> If you did this, you'd probably be able to be way more productive
>> with the chopper, so you could probably get quite a few different
>> shots and you'd save a ton of stitching time.
>>
>> Doug
>> --
>> Douglas L. Urner <#removed#> Port Orchard, WA +1 360 769 5565
>>
>>
>> On Jun 8, 2005, at 10:10 :42, Piotr Popik wrote:
>>
>>
>>> I wonder what the guys who did that sucessfully would say. Is the
>>> use of
>>> GPS critical? Was that due to the difficult conditions (like the
>>> wind,
>>> etc)? Sounds like a tough job, anyway.
>>> Reagrds, Piotr
>>>
>>> On Wed, 8 Jun 2005, James Coffee wrote:
>>>
>>>
>>>
>>>> If nothing else this thread is making me much more appreciative of
>>>> shots taken from a helicopter. I'm the kind of guy who when
>>>> someone asks "can you do..." I say yes. I hope no one asks me to
>>>> photograph from a helicopter and then stitch. I'll have to try to
>>>> remember to say no.
>>>>
>>>> -Jim Coffee-
>>>>
>>>> ----- Original Message -----
>>>> From: Edward Fink
>>>> To: #removed#
>>>> Sent: Wednesday, June 08, 2005 9:37 AM
>>>> Subject: RE: [PanoTools] Need help stitching my helicopter
>>>> panorama!
>>>>
>>>>
>>>> Well, I got another chance at the helicopter panorama on
>>>> Monday,
>>>> but so far I haven't had any better luck stitching than last week.
>>>>
>>>> The helicopter company decided not give a discount for
>>>> retakes -
>>>> it cost the same $500 per hour as the first time, so I STRONGLY
>>>> emphasized to the pilot AGAIN the need to maintain position.
>>>>
>>>> We went with what we thought was the easiest, simplest way:
>>>> having the pilot pirouette in position while I sat behind him
>>>> and leaned
>>>> out as far as I could, shooting continuously around the circle.
>>>> We went
>>>> with Bernhard's suggestion to try and rotate as fast as
>>>> possible, hoping
>>>> I could finish a set before he drifted too far.
>>>>
>>>> We didn't move as much as last week, but we moved off
>>>> center -
>>>> it looks our circle covered about a one block radius. So far I
>>>> haven't
>>>> got a good stitch out of it.
>>>>
>>>> Out of desperation I finally used one of the photos as a
>>>> map,
>>>> and I drew arrows showing our location, and the direction the
>>>> camera was
>>>> facing. I made each arrow a separate Photoshop layer and named
>>>> it the
>>>> same as the image name so I can use the map to select what
>>>> images to
>>>> try.
>>>>
>>>> That really helped a lot to understand our movement, and by
>>>> stacking up the different passes on top of each other I was able
>>>> to find
>>>> some places where a shot from the second pass better matches
>>>> something
>>>> on the first pass, and vice versa.
>>>>
>>>> Unfortunately, I found at least a couple of places where I
>>>> had
>>>> three of the compass points (4 shots with my D70/Sigma 8mm)
>>>> fairly close
>>>> together, but then the shot for the last compass point was two
>>>> blocks
>>>> away. I haven't yet tried to stitch some of the new
>>>> combinations that
>>>> I've found because of the map, but that's the next step.
>>>>
>>>> It took many hours to create the map. The hardest part
>>>> for me,
>>>> without any flying experience, was looking at the images and
>>>> trying to
>>>> figure out EXACTLY what the helicopter is over. Sometimes I
>>>> thought I
>>>> was looking at the west side of a building, but when I looked
>>>> again
>>>> later, I realized that it was just the shadow, and not the
>>>> actual side
>>>> of the building, meaning I was really at least slightly east of
>>>> the
>>>> building instead of west.
>>>>
>>>> The taller the building, the more perspective clues, but our
>>>> wide circle went over several parking lots and small buildings
>>>> that make
>>>> it a lot harder to judge exactly where we were.
>>>>
>>>> Anyway, I just thought I'd pass that info along while I
>>>> continue
>>>> trying to stitch different combinations of the pictures. If
>>>> anyone
>>>> wants to see the flattened version of my map with all the location
>>>> arrows to show how much the drift was, they're at:
>>>>
>>>> http://new-eden.com/temp/MapLowPasses.jpg
>>>> http://new-eden.com/temp/MapHighPasses.jpg
>>>>
>>>> We really want the lower altitude (2500') shots, be we tried
>>>> some at a higher altitude too, thinking that would give me more
>>>> slack
>>>> even if the pilot drifted. No such luck so far.
>>>>
>>>> (The arrow point is the estimated helicopter position, the
>>>> direction is
>>>> the camera direction. The really long arrows on the low altitude
>>>> map
>>>> indicate nadir shots that don't extend to the horizon. It's
>>>> faster to
>>>> draw a long arrow than change colors. The landing skids are so
>>>> visible
>>>> in the nadirs that to use them you'd probably need a pair almost
>>>> perfectly 180 degree apart.)
>>>>
>>>> Thanks again to everyone for the many tips and
>>>> suggestions! If
>>>> the client doesn't dump me instead of the pilot, I may
>>>> eventually have a
>>>> chance to try ALL your suggestions!
>>>>
>>>> If I get another pilot, I'd like to show him everyone's
>>>> suggestions and see what he'd prefer.
>>>>
>>>> Right now my tentative plan, if I get a third chance, is
>>>> to try
>>>> and take more responsibility instead of leaving so much to the
>>>> pilot,
>>>> and put the camera on a pole horizontally and (hopefully)
>>>> rotate it
>>>> before the pilot can drift so far. (The way Willy shoots out
>>>> over a
>>>> railing.) I've got a heavy duty, 12' telescoping light stand,
>>>> and I'm
>>>> going to stick my camera on that and do some tests out the
>>>> window. That
>>>> should also help me better deal with the landing skids. This
>>>> time I
>>>> leaned as far out as my seat belt would let me, then I held my
>>>> camera
>>>> out as far as the neck strap would allow, and I STILL got a lot of
>>>> landing skid in the pictures.
>>>>
>>>>
>>>> Ed
>>>> #removed#
>>>> http://www.new-eden.com/
>>>> No eternal reward will forgive us now for wasting the dawn.
>>>> -- Jim Morrison --
>>>>
>>>>
>>>>
>>>>
>>>>
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