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cdschroer

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About cdschroer

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    http://culturalheritageimaging.org

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    San Francisco, CA
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    All aspects of computational photography. Adoption of new tools and technologies and training programs. Software development of tools for RTI, Algorithmic Rendering, and related technologies.

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  1. cdschroer

    Working Download Link for Windows

    Thanks for jumping in Dave - I just checked it also - and it is downloading fine for me. I think your idea about it being quarantined by virus software makes the most sense. Carla
  2. cdschroer

    PTMFitter software download link

    I understand that PTMFitter is 32 bit, and therefore will not run in Catalina until we can create a 64bit version. We have had some discussions about that with various folks, because (as noted above) the PTMFitter is not open source code, and we at CHI do not have the code. We think we may have a solution - but I don't want to say for sure until we are sure. I just want to let you know that we have contacted folks who may be able to solve it. However, I'm not sure why RTIBuilder - which is a Java Application would not run, nor why HSHFitter wouldn't run. I just used the Go64 app and it says that the HSHFitter is also 32 bit. We do have the code for that one, so it should be easier to fix. I didn't get any warnings about RTIViewer. I have an older Mac and not running the latest OS. If anyone has tried ay of the tools on Catalina - please post what you have found about RTiViewer and RTiBuilder - other than the fitters, which we know are a problem. Carla
  3. cdschroer

    Buying a Dome

    Thanks for posting the RTI-dome.com - We're not familiar with them. It appears to be a small dome for insects and other very small subjects. Carla
  4. cdschroer

    PTMFitter software download link

    There are a lot of 32bit apps stil in use out there. Here's a quote from an article in Time magazine this week about how to check to see what 32bit apps you have on your system: "... if you’re dependent on a particular 32-bit app, it won’t work in macOS Catalina, as many Twitter users discovered after upgrading. Meanwhile, some popular apps, like Adobe Photoshop, appear to be suffering from temporary compatibility issues with Catalina, so it’s best to hold off on upgrading until a software patch resolves those problems. Want to see which of your apps are still 32-bit? On your Mac, hit the Apple menu, select About This Mac, and click System Report. In System Report, scroll down to Legacy Software, and take a look at all your 32-bit apps." Here's the full article: https://time.com/5696302/macos-catalina-upgrade/ I know this doesn't resolve the problem if RTI software no longer running - but I did want to point out that folks might want to be cautious about upgrading until they see the full impact - not just RTI software. Carla
  5. cdschroer

    PTMFitter software download link

    Thank you for letting us know about this. We can contact various folks to see what the simplest fix is for this issue. For the PTMFitter - that is HP software, and not open source. We do not have the source code for it - but I know some researchers who have it. Carla
  6. cdschroer

    Builder will not launch under any circumstances

    We run RTIBuilder successfully on a Windows 10 machine. We are mostly a Mac shop, so I'm not super familiar with the Windows environment, but I wanted to note that Windows 10 can successfully run RTIBuilder. The software is old, and we'd love to update it. We are a small independent nonprofit, and the initial work was paid for by a grant and some volunteer efforts. We'd love to get funding to update it, but selling individual copies isn't a way to get that done (especially since it is open source software, per the agreements of the funder and all parties involved in it's development). We still use RTI frequently, and think it is a very useful technique. It will take a new grant to create an updated version. Thanks to Dave for jumping in and asking for the details. Much appreciated! Carla
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. Hello

     

    trying to upload a TIFF file on RTI Builder, I get the message "the j-peg export folders is missing in your project directory". Could you help me to transform this TIFF file in RTI?

    Best,

    D.

  14. 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:
  15. 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
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