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42 comments

  • Avatar
    Bill Isenberger
    Playing around I found if I selected the Component I wanted to export then selected Registration, it exported the Component. I could then import that Component into another project.

    Image
  • Avatar
    Wishgranter
    Hi Bill

    Yes as you write can easily transfer alignment from project to project.

    imagine as you align together 1 room and export it. and doing for say all few rooms and then put together. Its clean workflow and powerfull for any sort of datasets.
  • Avatar
    tomasb
    This is actually a very cool and powerfull tool. Hope to have some tutorial showing this soon.

    There are more scenarios where this tool can show its real power:

      Reconstruct piece-wise or working in parallel. Reconstruct a room/level/interior/exterior separately in parallel on more computers. Check every scene separately, if it contains all you want, use inspection tool to see connections between images, verify quality, etc. Then export these independent components and import them all into a new project. Click align and get a single complete scene. It will recycle all previous computations so it will be pretty fast.
      Corrections - do you have some bad cameras/ghosts in a bigger scene? Simply reconstruct the bad place separately and import to the big scene. It will correct the scene locally.

    You can also restrict export to some part of a component - simply select cameras which you want to have in your component and click export registration.
  • Avatar
    Götz Echtenacher
    Hi thomasb,

    thank you, that was really helpful!
    I do have some issues with ghosts (am I correct in asuming it means areas with doubled surfaces?). How exactly do you do that? Just import the corrected local set into the old one and nothing else? Or do I have to align again? Because then it would just run another alignment over all, right?
    I tried to correct these ghosts with control points but your solution seems so much faster!

    Wishgranter,
    I did not quite understand the workflow with several rooms.
    How would there be an advantage to one big project? Just in terms of easier handling?
    As I understood it would need another alignment to orient the rooms, which could result in a completely different result (in some details - e.g. ghosts). Gathering from the differing results of identical datasets, there must be quite some randomisation going on in the background (that ist no criticism!).

    Anyone anything to say to these questions? ;-)
  • Avatar
    Götz Echtenacher
    Ok, in addition to my two previous questions:
    I just did the workflow that thomasb suggested.
    I opened a new project with the mal-aligned images and a few more correct ones of the area.
    I aligned them (took 40000/80000 to work) and then exported the registration.
    This I imported as a component into the big project but nothing changed.
    Am I missing something?
    Do I have to rerun alignment?
    Which would loop back to one of my original questions:
    Wouldn't that result in a competely new alignment?
    Or is the new one based on the previous alignments?
    Help! ;-)
  • Avatar
    akiro
    How can i align imported components?
    They are only showing up under the "Scene"-tab as different components with different orientations and scales. :?:
  • Avatar
    tomasb
    Imported components are "star" marked on 1Ds toolbar side. To connect/align them, just press align. If there is a common visual information in images, or you have control points, or you have GPS/common coordinate system and enabled merging using GPS then it will create a single component.

    You can also add a new set of images into the project and simply press align.

    How exactly do you do that? Just import the corrected local set into the old one and nothing else? Or do I have to align again? Because then it would just run another alignment over all, right?

    Exactly. Create a new locally corrected component and import back to the project. You need to press align again. It will reuse all previous information so it will be fast. Even if you add a new set of images it will recycle previous computations and it will not start over from scratch.
  • Avatar
    Götz Echtenacher
    Thanks thomasb, that was very valuable info! :)
  • Avatar
    akiro
    [quote="tomasb"]Imported components are "star" marked on 1Ds toolbar side. To connect/align them, just press align. [/quote]
    "Align Images" or which align?
  • Avatar
    Wishgranter
    Hi Akiro
    just use ALIGN...

    If it not want to align get more images to cover the overlap or use ControlPoints like in this video
    https://www.youtube.com/watch?v=d8naLEtLqDY
  • Avatar
    Götz Echtenacher
    Hi Akiro,

    as far as I know there is only one ALIGN, just in several different ribbons.
    Was a bit confused at first, too... :mrgreen:
  • Avatar
    akiro
    Ok, thanks! I thought i missed something. I tried the "Align Image" button, but nothing changed after the short processing time.

    Is there a difference between "internal" components and exported/imported components?

    I have to say that the interface is very confusing...
  • Avatar
    Götz Echtenacher
    Yes and no.
    The whole affair is just very complex and I find considering that the guys have done a pretty good job.
    Took me longer to work out how Photoscan works, but then that was my first time in that area...
  • Avatar
    Wishgranter
    Hi Akiro

    Yes it can be confusing on first try but when start to work with it will see the workflows are set very carefully and tested already by our customers over 1,5+ year. So if they would see its not ideal we would to change it. And teh customers work with BIG data. can imagine a daily work with 30-50k+ imgs datasets ? if there would be something not good, we would change it without problem.

    Where its confusing for you ? in what part of the COMPONENT workflow ??

    So for now just try process you data, try get real experience and you will see get it in hands in few days....
  • Avatar
    akiro
    It's getting better ;)

    e.g. one thing that i find confusing is the mutiple "Align Images" buttons on different tabs.
    And the separation of the "View" selection (Scene) and the "Set Reconstruction Region" (Reconstruction).

    Is there a way to display preview images of the images listed in the components? I find it very hard to select some images to place control points.
  • Avatar
    Wishgranter
    Hi Akiro

    e.g. one thing that i find confusing is the mutiple "Align Images" buttons on different tabs.

    their are on 2 ribbons
    in workflow with all most used tool together and in ALIGNMENT ribbon :D same function...



    Is there a way to display preview images of the images listed in the components? I find it very hard to select some images to place control points.

    when click to components can select the cams use the "color" 2D windows and set it like im do it in this video
    https://www.youtube.com/watch?v=d8naLEtLqDY so have one img in window with CPs already placed
    and change secondary 2D window to the img what need assign CPs..
  • Avatar
    Hennie van der Merwe
    Pardon the ignorance but I am a first time photogram user and still feeling my way around this.
    I am trying to create a model of an object by combining the bottom to the other views. manage to create two good models but things go wrong when I try to merge.

    tried using control points but comes up with huge 400+ pixels every time. Also not having luck importing component.
    Just overlays the one model on top of the other.

    Step by step instructions would really be appreciated.

    PS I have tried just about all the other software and this is in a class of its own - just hope I can afford it.
    Congratulations on a brilliant execution.
  • Avatar
    Wishgranter
    Hi Hennie van der Merwe

    Can post some screens with the scene you trying to create ? so we can get better look on what need to solve...
  • Avatar
    Hennie van der Merwe
    Here are the two models that I am trying to merge
  • Avatar
    Hennie van der Merwe
    Tried the uploading file function but cannot see them in the post.
  • Avatar
    Hennie van der Merwe
    And the other one
  • Avatar
    Wishgranter
    Hi Hennie van der Merwe

    can upload it to say Dropbox and put link here to it ?
  • Avatar
    Wishgranter
    Hi Hennie van der Merwe

    the links not working its refering to file direct on your disk
    if have Dropbox, right click on the file and should get its drobo link..

    like this one https://dl.dropboxusercontent.com/u/150 ... ok_007.jpg
  • Avatar
    Wishgranter
    Hi Hennie

    the main problem is you need capture it a bit different way. Putting it on table is not the best solution.....

    try to put it so can shoot around whole project, sometimes its tricky but take a look on some screens here how to shoot

    https://www.dropbox.com/s/j6ilz63kiafza ... 0.jpg?dl=0

    https://www.dropbox.com/s/xq7x1z5a9q4o2 ... 8.jpg?dl=0
  • Avatar
    Hennie van der Merwe
    Thanks but it does not really solve the problem as there are lots of detail at the bottom of the object that will be masked by whatever it is suspended on. Also not a very practical solution as one iether needs a ladder for the top views or lie on your back for the bottom views - not very elegant solution.
    Surely there must be a way to merge?
  • Avatar
    Wishgranter
    Hi Hennie

    Understand you, but if need solve it ELEGANT way, find a pose so it can be placed on small "support" and put there something like glue (so can remove the subject easy ) you trying to scann sides, try scann it as whole object in 360 deg view..
    And then capture from sides like the bonsai in say 2-3 elevations


    it would be possible to make from 2sides but it need a lot of experience to put it later together as need sub mm precision on scale.
  • Avatar
    Hennie van der Merwe
    Thanks for that so my understanding is that the Merge function only works easily when more than one model was created from the same set of pctures due to not enough overlap, etc?
    With reference to the glue bit I just need to make sure that all pics must be taken without moving the object? your statement could be interpreted as removing and take pics of the sides.
  • Avatar
    Hennie van der Merwe
    Looking at your screenshots it looks like more than one model was created even with all the overlap in the pics.
    how does one then merge these models?
    Pardon the stupid questions but I will get there eventually. LOL

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