(meteorobs) Fisheye lens misunderstanding and photography update

[Meteorites USA]

Thanks for the input Thomas...

I'll pose the question in a new thread.

Sorry bout that.. :)

Regards,
Eric


Thomas Ashcraft wrote:
> Meteorites USA wrote:
>   
>> Is aliasing really that important? ....... What is the desired outcome 
>> of this discussion?
>>   
>>     
>
> Hi Eric,
>
> For me as the original question poster it is an important issue.  I am 
> currently trying to get as much intricate image detail as possible from 
> an individual meteor capture so as to add the light, burn and potential 
> electromagnetic information to my radio meteor and fireball studies. The 
> sharper and truer the picture the better for my particular purposes.
>
> Also, your further questions are good ones but probably deserve their 
> own thread. Otherwise there will be major thread drift.  -  Thomas
>
>
>   
>> What I would like to learn is how to determine altitude and azimuth of 
>> the retardation point of a bolide event as recorded from a fish-eye lens 
>> from an all-sky cam. It's easier to figure from a camera with a 90 
>> degree FOV pointing horizontally in any given direction, but an all sky 
>> camera pointing straight up with a 180 degree FOV is much harder to 
>> calculate. The horizon to horizon view coupled with the distortion of 
>> the image and aliasing can cause mis calculations.
>>
>> Can someone please explain how to determine altitude and azimuth please 
>> from an an all sky image? Links? Papers? Discussions?
>>
>> Thanks...
>>
>> Regards,
>> Eric
>>
>>   
>>     
>
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