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cdschroer

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Everything posted by cdschroer

  1. cdschroer

    DLN:CC Beta - Locations

    There are some good ideas here. The easiest one to implement is adding a notes field. I'm not sure we can do the other ones in the current version because of time and budget constraints, but we'll talk it over. You can use the Notes field to store additional info - though it does have the drawback of not being as easy to find, and also not being mapped to the CRM, etc. Carla
  2. cdschroer

    RTI Hosting/processing for web viewing

    Have you looked at the WebRTIViewer? http://vcg.isti.cnr.it/rti/webviewer.php It's from the Visual Computing Lab in Pisa - and those folks have spent some time looking at compression and tiling and similar techniques for using big files over the internet. The project is open source. Contact info for Gianpaolo Palma is also on this page. He was the primary developer. They also support RTIs in the 3D Heritage Online Presenter (3DHOP) tool. It's from the same team. Carla
  3. cdschroer

    PTMFitter software download link

    We recently discovered that the PTM software is no longer available from the HPLabs website. We have placed both the Mac and Windows versions of the PTMFitter in a dropbox along with the license file from HP. You can get the software from here: https://www.dropbox.com/sh/jfsy0lhxu6zv4i4/AADJpq6E_GJmNw_s5C8r94CVa?dl=0 Also - many papers on PTM and RTI are by Tom Malzbender - and you can find them on his personal website: https://sites.google.com/site/tommalzbender/
  4. Hi Dave - and thanks for the detailed notes! Actually you can link rights to both the subject AND to the images of the subject. I admit it isn't as clear in the interface as it should be, and we are fixing that. The idea is that the subject may still be in copyright, and that's an important thing to know. So subjects can have rights statements, including noting whether it is in copyright. For our imaging work, we generally care more about the rights in the images, and we can do that too. But even if my organization has the rights in the images, if they are images of an artwork that is in copyright, we would want to record that. Also remember that you don't have to use all of the fields and associations that are there. So, if you don't want to note a rights statement about a subject you don't have to. Another important note about rights statements is that they are a high level way of noting what kind of rights are intended, but they aren't an actual license. So for material that is in copyright, you need to be able to say who is the copyright holder, and what is the general license (if there is one) This also lets people know where to go if they need to get a license for something different. We were just discussing this mechanism this week, as we are planning major updates for the tools. We want to make it possible to set up the rights at the project level, so that all the imaging sets that are part of that project automatically get those rights. Then if you need to do something different for a specific set of images for say an RTI - you could override that. We are also looking at how to make this more clear in the interface, so you can see the rights (and other attributes) and where they are coming from. In other words, are you getting those rights from the project, or are they local to this particular RTI (or photogrammetry) set. And this brings me to a new concept we will be introducing: Image Bundles. An Image Bundle is all of the images that will be processed together of the same subject (remember that a subject can be a scene, not necessarily a single object). An Image Bundle can be a single-set image bundle, or a multi-set image bundle. That is determined based on the technology. So RTI image bundles are single set, and Photogrammetry image bundles are multi-set. We will get rid of "groups of image sets" (it's still in the data model - but the interface will be much cleaner) We are adding single-set image bundles for documentary image sets. And finally - related to your prior comments, we will be adding an image set type, that is user defined. So, if you have a Documentary photos technology type, you can create subtypes for HDR, or stratigraphy, or small finds, or whatever is useful to you in organizing and finding and labeling your image sets. Thank you so much for taking a deep look at the tools, and for taking the time to write up your experience, questions and suggestions. We have been using the tools more and more, and also presenting them to others, and have run into some of the same issues. Some of them are harder to solve than others, though we feel the whole system is getting better. Cheers! Carla
  5. Hi Dave - Thanks for the notes and for using the tool! We are adding an additional technique type for "documentary photos." That will be in the next version (we are working on it now). We are also discussing adding support for multi-spectral image sets. I think with a documentary photos technology type - you could support additional kinds of image sets, because the Inspector would do a very minimal check on the images, and you could add a description or note for which kind of thing it was. Maybe we should think about subtypes within documentary photos? We don't want to add the ability to make top level new techniques, because there are significant smarts built in about what these techniques mean for Inspector, as well as how the data is grouped and saved. Further there are customizations for the image sets around the technologies, such as string length and sphere size for RTI - and differences between image sets for photogrammetry. There would be no way to have these kinds of technology specific customization for user defined technology types. I'll note that we realize that the use of image sets and groups of image sets is confusing. We are adding a notion of an Image Bundle - which is the images of a subject or scene that will be processed together. For RTI that's a single image set. For photogrammetry that's a group of image sets. For the new documentary photos that would also be an image set. This way you can see all the image bundles within a project, etc. We are working on some additional reporting functionality. We'd love to get your thoughts about this kind of approach and whether it would meet the needs you see. Carla
  6. cdschroer

    High contrast and HDR images in photogrammetry

    I agree generally with the advice listed here. We stay away from contrast curves. You can apply a white balance and an exposure compensation when needed, and this can be done for individual images or sets of images. The main thing when doing an exposure compensation is that you are trying to get a matching histogram across the images (not exactly, and will potentially vary for different parts of a subject) The point is that you can make some adjustments that will give you better photos, without applying contrast curves or sharpening. If you have heavily shadowed areas within a photo and some areas are bright, you can also bring up the shadowed area. This is essentially an exposure compensation applied only to the dark parts of an image. Don't go crazy with these modification though. As for the second part of your question, you absolutely can make new jpegs or tiffs from your RAW or DNG files with exposure changes. As long as they have the same name and are in the same location on your hard drive, (or you reset the path to point to them) Agisoft software will use those images for any operations after you replace them. We have done that to correct for lighting differences across an image set and to remove what Dave referred to as "boundary effects" or light and dark stripes or patches across a surface. This can occur for a variety of reasons including shooting something in the round outdoors where one side is in shadow and one side is in full sun. Also if the sun is going in and out of clouds you can have these issues. Ideally you would correct for that when you are shooting by adjusting shutter speed. Carla
  7. cdschroer

    impossible to select files

    Please read this thread and see if it solves your problem: http://forums.culturalheritageimaging.org/topic/534-not-able-to-import-images/?tab=comments#comment-1692 Also note that you should post in the most relevant forum for your question - in this case, Processing RTI data. We'll move things to the FAQ if multiple people run into it. Carla
  8. cdschroer

    PTM format documentation corrupted?

    The file on the HP site appears to be corrupted. I've uploaded a correct one to the FAQ forum post about file formats: Now both the RTI and PTM format specifications are available from this thread:
  9. The PTM format document on the HP website appears to be corrupted. I've uploaded it here. Note that you have to be logged in to the forums to access attached files. Carla PtmFormat12.pdf
  10. We get asked this question a lot, so I thought I'd post it here in the FAQ! The file format specification for PTM is available from the HP website here: http://www.hpl.hp.com/research/ptm/downloads/PtmFormat12.pdf The file Format Specification for the RTI file format was previously posted here in the forums, and I am attaching it here as well. Note that it is marked "draft" because it contemplates a .xmp structure embedded in the file structure, and that part was still under discussion when this document was created. The format for the RTI data is final, and this is what is used by the RTIViewer and other viewers that support this format. Carla rti_format_final-draft.pdf
  11. I'm guessing the issue is the size of the RTIs. You might be able to open them on a beefier computer. Though, in general we have successfully opened files made from a 50MP camera and full quality Jpegs on a machine with 16GB RAM. The RTiViewer will try to open large files, and may fail if it can't open them. Usually it fails without issuing an error - so I'm surprised by the internal filepath error. I haven't seen that before. Thanks Dave for jumping in on this one! Carla
  12. Musa - I replied to this in the DLNCC forum. Please post there if you have further questions. Carla
  13. Welcome to the forum for discussions about Nigerian Cultural Heritage preservation and documentation. We welcome discussions about any topics of interest for folks working in Nigeria, or interested in preserving Nigerian culture. If you have questions about Reflectance Transformation Imaging (RTI) or photogrammetry - please use one of the other appropriate forums for those questions and discussions. Carla
  14. cdschroer

    Question

    Musa - We use the database to help organize and keep track of the information you enter using the DLNCC tool. This also helps with reusing data you already entered. The installer installs the database, and when you run DLNCC it will be able to connect to the database using a default password. So, if the Postgres application is running, then DLNCC can connect to it and work properly. If when you try to start DLNCC it asks for a password for Postgres - then "cancel" and start Postgres yourself (by double clicking on the application) then run DLNCC again and it should work. In other words, Postgres has to be running before you try to run DLNCC. By default it will run every time you startup your computer. If you are actually trying to look at the database in Postgres, we do not advise that, as the design of the tables and their relationships was to be used only with the DLNCC tool, and DLNCC is designed to manage the data and export the data and relationships. You should not try working with the database directly, only through the DLNCC interface should you enter information. Carla
  15. cdschroer

    Color correction for HSHfitter

    The PTMFitter is available - and I posted it in the FAQ forum pinned to the top, as well as in the thread where it came up. We have created a dropbox with the files: For HSHFitter - try using it as installed - and staying away from the advanced options. In other words Do NOT tick the box for advanced options. Carla
  16. cdschroer

    RTIBuilder 2.0.2 now available on CHI website

    The page with the workaround noted above is no longer available. I was able to install RTIBuilder 2.0.2 on MacOS Mojave with instructions from this page: https://techsviewer.com/allow-installation-of-apps-from-anywhere-in-macos-mojave/ They show multiple options, but the only one I was able to make work was to disable the "gatekeeper" which puts open apps from :"anywhere" back on your preferences window. Note that you can open RTIBuilder once, then change your setting back to just from identified developers, until you need to allow an app to open again. Other methods for overriding allow an app from an unknown developer, including from the Apple Manual did not work. The system detects that the app is "damaged" meaning that it was modified after it was signed. Note that there are many legacy apps where this is true, and they say that you can override it by using control click on the app and open, but that didn't work for me. I continued to get the damaged app message. However, disabling the gatekeeper (i.e. putting "allow apps from anywhere" in the security preferences did work. Carla
  17. The RTIBuilder version 2.0.2 version along with documentation and an example data set is available here: http://culturalheritageimaging.org/What_We_Offer/Downloads/rtibuilder/index.html RTIBuilder is open source software made available under the Gnu General Public License version 3.
  18. cdschroer

    Unknown Error Detected

    Wow! You folks are having a very difficult time. I'm sorry to hear it. We mostly work on Macs in our studio - though we have worked with Windows machines in training classes, and we recently added one to our collection of computers. The computer you describe should be plenty powerful to build 50MP RTI files. We also have a 5DSR for more than 3 years, and build RTIs from those images on a regular basis. We know about HPLabs taking down the ptmfitter - and most of the PTM pages from their website. We've made the ptmfitter available in a dropbox - we posted that here to the FAQ forum: I can't really explain all the problems you are having. One thing to check is whether you have rotated all the images in the image set. If there is one that is portrait for example and the rest are landscape, that will cause problems with the fitters. If you are shooting images with the camera hanging down from a tripod - or from a camera stand, then it will sometimes "auto-rotate" the images into different orientations. We recommend turning off auto-rotate and then rotating the whole set of images at once, when needed. There is a discussion comparing HSH and PTM here - there are trade-offs: That's all I've got time for tonight. There are other posts about the JPEG library error on Windows in the forum - you can try searching for that. I wish I had a better answer for you, but I'm kind of scratching my head at this point. I'm hoping other folks will chime in. Carla
  19. cdschroer

    Unknown Error Detected

    Thanks Dave - good suggestions! I'll add that the xml file indicates the error is in ptmfitter: DATEF="" DATES="" LEVEL="WARNING" USER="">Fitter returned an error ! Error : -1</xc:event> We see that in the screenshot as well, that ptmfitter is not able to open the file. So, try building an RTI with the hshfitter and see if that works. You have plenty of memory on your computer, and we build files this size with a less beefy machine. However there have been some issues with large files with the ptmfitter on Windows that don't occur on Mac. Also, are you rotating the images before you put them in RTiBuilder? In other words, are the images landscape or portrait, and are they all the same? They really need to be all the same. Hope this helps. Carla
  20. cdschroer

    Unknown Error Detected

    Can you say more about the computer you are using and it's specs. For Example Mac book pro with 16GB RAM and MacOS 10.12.6 Also - you can look in the .xml log file that RTI Builder produces, which will sometimes give you a clue as to what is going on. In this case- from the screen shot it appears that RTiBuilder is successfully making all of your cropped files, and the failure happens within the PTMFitter. The fact that the PTMfitter can't open the file, might indicate a permissions problem. Where did you instal the ptmfitter? Are you able to build HSH based RTIs? the HSHfitter is included with RTIBuilder, so it should just work, without installing extra software. One other thing to try is to make smaller jpegs and see if it works - We regularly make RTIs of this size or larger, but we have fairly "beefy" machines with a lot of RAM (16GB - 128GB) Carla PS: If you don't know what the "fitters" are - you might want to check out the Glossary: http://culturalheritageimaging.org/What_We_Offer/Downloads/Capture/CHI-RTI-Glossary_v1.pdf
  21. cdschroer

    Basic hardware

    I think that John is interested in RTI - which doesn't require as beefy of a system as photogrammetry does. The good news for RTI is that it will work on a broad range of systems, though it will definitely be faster to process on a faster machine. Also, this somewhat depends on the resolution of the camera you will be using, and therefore the resolution of the finished RTIs. If you have 16GB of RAM you will be handle most RTI image sets and also load and view them in RTIViewer. I agree with Leszekp about the graphics card if doing photogrammetry, but not as critical for RTI. If you are doing a lot of photography with high resolution cameras (>25MP) then this will definitely help you. So bottom line is max out the RAM and CPU and graphics card for what you can afford. 16GB is an absolute minimum to work with high resolution images (including RTI) - and 32 if planning for photogrammetry. Pay attention to the the other components too, and not just RAM. Carla
  22. cdschroer

    PTMFitter software download link

    I rebuilt the zip file using a different tool. I tested it - and it seems to be working fine. The original version tried to put it back in my applications folder when I unzipped it. So, hopefully this will fix it - as it seems to work correctly. Carla
  23. cdschroer

    PTMFitter software download link

    In the dropbox are two folders one for Mac and one for Windows. In the Mac folder is a copy of the PTMfitter I have on my mac and run regularly. It doesn't seem to have an extension. I have it in my applications folder. I don't have a disk image or installer for it. I think it should work without an extension. I just tried downloading it and dropbox adds an .html extension to it. When I remove that it still thinks it's an html file when I run it from the terminal. So, I've uploaded a new copy as a zip file. Unzip it - and hopefully that will work. I don't know what the dropbox downloader is doing to the file - but it doesn't seem to like a file with no extension. Note that it's a command line tool, and not designed to work by double clicking on it. You could test it by running it from a terminal window if you are comfortable with that. Or just browsing to wherever you unzipped it from RTIBuilder in the last screen (where you execute the RTI) Carla
  24. cdschroer

    Adding Scale Bars after alignment

    I think there was an error in the above recommendations - you absolutely need to align the images with the scale bars in order to use them to set scale for your project. How you placed the scale bars will affect exactly how you work with those images. The Agisoft software will not be confused by some images that have scale bars and some that don't for the same area of your scene - as long as you have good crisp photos with good overlap between photos and plenty of look angles. It's a bit difficult to describe in text, but hopefully this makes sense. Carla
  25. cdschroer

    Adding Scale Bars after alignment

    If you shot it properly, all the images should align together in the same chunk. Also for a turntable project, you likely need to mask background images, and then when you align, apply masks to tie points (in the advanced tab) You do not need to mask the scale bar images. You can set the region of the model later in order to remove the scale bars. There are other ways to remove the scale bars as well - but initially, you want them in the main alignment. If they don't all align together that may indicate a different problem (such as blurry photos, monochromatic surface with no texture, etc.). In that case you can align them in separate chunks and try to bring the chunks together. Just understand that at that point you are working around a problem and a properly shot image set should all align together. Hope this helps, Carla
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