" you will need to use all of these, but not all at once - this can confuse 
the optimiser. "

I want to understand that detail.  Photos tab: Optimize Geometric: the 
calculate button:
Does it start from zero when you click it or does it start from wherever 
any previous optimize finished?  Your statement, that I want to understand, 
implies that previous values of its outputs influence it.

In other kinds of software, a typical optimizer can find a local optimum in 
the parameter space that might be much worse than the global optimum, so 
the starting point can make a big difference.  I don't know whether that is 
what you mean by "confuse".
I tried to find such an effect with a simple experiment and failed.  But 
likely because the experiment was too simple (If what you meant was a local 
optimum problem, not all sets of images and control points would even have 
any local optima).


On Sunday, December 26, 2021 at 7:20:48 PM UTC-5 [email protected] wrote:

> On Sun, 26 Dec 2021, 23:57 Jon Schewe, wrote:
>
>>
>> Is there a good reference for what the following terms mean to Hugin?
>> Position
>> View
>> Translation
>> Barrel
>>
>
> Position is roll, pitch and yaw.
> View is the horizontal lens angle of view.
> Translation is xyz position of the camera.
> Barrel is the radial barrel (or pincushion) distortion of the lens.
>
> For your document assembly project, you will need to use all of these, but 
> not all at once - this can confuse the optimiser. I suggest starting with 
> translation, then adding position, then view and finally add barrel.
>
> -- 
> Bruno
>
>
>>

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