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  2. After the coefficients are found for Hemispherical Harmonics, how does RTIBuilder determine the direction of the surface normal? Does the program assume the surface is diffuse and look for the maximal lighting direction? I have seen multiple articles (Manfredi et. al.) that state that HSH more precisely determines surface normal direction, but neither those articles nor their references seem to point to how the surface normals are actually calculated. Unlike PTM, there are potentially multiple places where the gradient could be zero and with 16 coefficients, those locations are not easily solved for. Thanks for any assistance!
  3. Does CHI have any recommendations regarding EXIF file modification in relation to managing single, sets, or groups of images? Thank you.
  4. Hi everyone, I've been looking at ways to store all of my photogrammetric models and the image data sets that go along with them. I'm trying to figure out the best way to package it all together and am curious how others are storing these often large file sets. Anyone willing to share their methods? Thank you
  5. Two common options include: Texture laser model inside photogrammetry software Export the photogrammetry model Align the laser model to the photogrammetry model Import the aligned laser model into the photogrammetry software and generate the texture. Texture baking Export the textured photogrammetry model Align the laser model Bake the texture from photogrammetry to laser model The photogrammetry mesh needs to be accurate enough for alignment with the laser model. As long as the camera alignment is good the texture map should be good as well even if the photogrammetry mesh has some defects from shiny/featureless surfaces.
  6. I'm really new to photogrammetry, i mean I have newer used it, so forgive me for a newbie question. I've been using 3d scanners for almost 2 years and it is good for geometry and it was enough for a long time. But now I've changed my job to digitize statues and other art. The scanners I use (It's a combination of Artec Eva and Artec Spider if this makes sense) do capture textures but their quality in far not enough for digitizing art. I know, that photogrammetry can provide very good textures so it might be a solution. My idea is to use 3d scanning for geometry and photogrammetry for textures. Are there any good software which can do such task? Or the common process is to bake textures from photogrammetry model to scan in traditional modeling or texturing software? I'm not sure that photogrammetry geometry will accurate enough for baking... The other question is recommendations for the camera, and additional equipment. I can afford expensive devices if it will really worth it. Haha, after price we have paid for the scanners it would be strange to try to safe a bit of money on other equipment. Thank for the help in advance.
  7. I managed to find an old Mac running macOS 10.13 High Sierra and get a working RTI setup. It wasn't trouble-free to get it working, so I posted instructions on how to get everything working on an old system here: Hope this helps some people in the interim. Tom Curatorial Research Centre https://curatorialresearch.com
  8. I'm having to rebuild my RTI/PTM workflow on account of reinstalls etc. I know that none of the apps work on a macOS 64 bit system like 10.15 Mojave but I was lucky enough to find an old MacBook Air running macOS 10.13 High Sierra. Some of the links above are broken now, so here's a summary of what I did to get working RTI/PTM software in macOS 10.13 if you are lucky enough to have an old Mac hanging around. There are risks in allowing apps from being installed from anywhere, so bear this in mind if you are installing software from other places. Download RTIbuilder and add to the Applications folder as usual. It will not run, and macOS will report the app as broken. Disable Gatekeeper (this is what prevents the app from running) by opening a terminal and typing (or copy/paste) sudo spctl --master-disable Verify that this has worked by going into System Preferences > Security & Privacy and in the General tab check that there are now three options for installing software under "Allow downloaded apps from:" and that "Anywhere" is selected. Now you should be able to run RTIBuilder. If you're concerned about security, after you have finished building and viewing HSH RTIs, set the option in Security & Privacy back to another option such as "App Store and identified developers". If you want to create PTM files too: Right-click on RTIBuilder and select "Show Package Contents" then navigate into Contents > Resources > Java > Fitters > PTMfitter The folder will be empty. Keep it open and open a new Finder window/tab. Download the PTMfitter software from Carla's Dropbox link: https://www.dropbox.com/sh/jfsy0lhxu6zv4i4/AADJpq6E_GJmNw_s5C8r94CVa?dl=0 Extract the zip file and copy the file PTMfitter file (there's no file extension and this doesn't matter) into the PTMfitter directory that you still have open. Open a terminal and (assuming RTIBuilder is in your Applications folder) type/copy/paste cd /Applications/RTIbuilder-v2.0.2.app/Contents/Resources/Java/Fitters/PTMfitter Next, you need to make the PTMfitter file executable by typing chmod 755 PTMfitter Now you can close your Finder windows and launch RTIBuilder. It should now launch and be able to create both HSH/RTI and PTM files. I hope this helps some people at least. Thanks, Tom Curatorial Research Centre https://curatorialresearch.com (These instructions worked on macOS 10.13 High Sierra in February 2020)
  9. Hello, with Catalina macOS version 10.15.3 the RTIbuilder app works halfway with Highlight Bases (PTMfitter). I explain the process. - first step: detected spheres - run. - second step: set new center - run. - third step: Highlight detection - run. - in the final step, after locating the PTMfitter in the computer, the next error appears: "error=86, Bad CPU type in executable" This is an error as we already knew, the problem with convert here is that macOS Catalina dropped support for 32-bit executables. Attached is a picture of the error. The hshfitter does not work with the application either. This is the same error as with the PTMfitter. The difference is that in the last step, in this case (hshfitter) it processes all the images and then the error appears. "error=86, Bad CPU type in executable".
  10. Tom

    Buying a Dome

    I built a simple dome back in 2009 when I worked for Wessex Archaeology. You can see the build process here: If you have a few spare days, and are handy with a soldering iron, you could build your own relatively cheaply. I shared my methods and what I learned building it with the University of Southampton project which seemed to inform some of the features of the domes that are being made today.
  11. For me, RTIViewer works fine in macOS Catalina. I wonder why that should be (binary is dated 18 Nov 2013)? However, when launching RTIbuilder 2.0.2 macOS asks for 2017 Java, which won't run because macOS reports that it already has a newer version installed. Like Hembo, I can't create RTIs any more. If priority could be for HSHFitter, with PTMFitter coming later, that would be a great start for modernising these apps. There's nothing else like RTI! As Hembo suggests, time to dust off VirtualBox and try that route (or beg an old PC laptop from a friend!). I'm not sure how I can help as my programming skills are limited, but anything I can do to help I will. Thanks, Tom
  12. It could be possible that the .exe stored by the people at CHI has been infected over time. This could be investigated if someone has the original .exe, by making a MD5 checksum and see if the old and new file behave in the same way. I personally think that the antivirus software are detecting an old version of java virtual machine. rti-builder is old software that was never updated and still relies on an outdated version of the JVM, that has been exploited in all possible ways, and is consequently considered unsafe.
  13. This is an ongoing issue for the Windows version of rtibuilder_2_0_2_setup.exe file. I likewise get a notification from Windows Defender. It is infected with what MS calls "Win32/Dynamer!rfn". It also has a growing consensus among virus scanners, up to 10 now with Microsoft and Cylance being the most reputable, and filescan results can be seen here on Virustotal: https://www.virustotal.com/gui/file/a531b6de3861d3ac1f2ac2ca4d3ebefec1e65d3d50a44c957a8e345d79d26f5b/detection Virustotal also runs various website scanners which are also reporting malicious and malware at the link. https://www.virustotal.com/gui/url/26a92d3b13309e7e21169ecfca0a790752dafbc8c5b097c5b7fa989a86eb3256/detection Microsoft description can be seen here: https://www.microsoft.com/en-us/wdsi/threats/malware-encyclopedia-description?name=Trojan%3aWin32%2fDynamer!rfn&threatid=2147721515 Windows Defender and/or Essentials are not automatically configured on all machines. Some machines may have other anti-virus that do not detect it yet. At any rate some will see it and some will not. It's also possible that an already infected machine may not see it any longer, as the trojan may hide it or disable AV. At any rate the evidence that this current file is carrying a trojan is pretty good.
  14. 3dguy - thanks for your experiments and posting the above; still awaiting for response from Alessandro so don't know if he still has a problem; interesting re possible benefit of removing the metadata. cheers/Dave
  15. I ran into the same problem as Alessandro. HSH...no problem. PTM gave me an error at the final processing stage. Images were taken with a Nikon D800 at 7360 X 4912 pixels (36mp).Processing was done under Windows 10 with 64gb of memory. Per Dave’s recommended procedure above, I set up a fresh download of builder and the fitter on the C Drive. Pulled in the fish fossil sample set...that processed no problem. I then took my file set reduced the image size to match the fish fossil test set (2000 pixels on the long edge). Worked fine. So I started increasing the file size. To make a long story short, I ended up, removing the metadata, processing the full file size image, and then cropping the image at the end. I was able to successfully perform a PTM run with an image file cropped up to 29.19 megapixels. If I cropped to 29.21 megapixels or more it would fail, so it appears that there is a size limit on the PTM processor. Alessandro is working with a much smaller image size but only 8gb of memory , but I would think that that should be enough. I would recommend removing the metadata from the files, and then testing. Not sure what effect that will have but it seemed to make my files process more smoothly. Try different cropped sizes and see how far you can go before it fails. You can then size your images accordingly. I read a comment by Carla in another post that indicated that apple computers don't seem to have a problem. An associate of mine is going to try and see what happens. Hope this helps
  16. Windows Defender is the standard anti-virus program that comes with Windows 10. It will show up as a shield icon in the trayicon area. Double-click on it, select "Virus & threat protection => Virus & threat protection settings => Manage settings => Exclusions => Manage exclusions". Add the RTI_Builder folder (usually in the root directory on the C- drive). This should fix the problems. You may need to reinstall RTIBuilder.
  17. Hmm - I have it working on Windows 10 - just a regular install from our download in winter 2019. I haven't tried it recently. So sorry about all the problems. Carla
  18. I am experiencing the problem discussed in this thread. I read every post, but the www.rtigroup.org link posted by gwenrileyjones is broken. Is there a new up-to-date fix for this? I have Mojave.
  19. Hi We manufacture and sell professional lighting systems used for photometric measurements, 3D mesh and texture generation and cultural heritage preservation techniques such RTI. We also build custom domes and multi-camera trigger and power solutions. For more information please visit https://www.esperhq.com/lightcage Best Albert
  20. Thanks Hembo! Turns out that RTiViewer won't run on Catalina either. Gianpaolo Palma from the Visual Computing Lab in Pisa is looking into recompiling it for 64 bit. He thinks it will be straight forward if we lose the functionality for the network viewing. That was really just an experiment in the current version, and I think there are better options for folks now - so losing that feature to get 64 bit seems like something we can live with. 2 different people are looking into 64 bit PTMFitter and HSHFitter. PTMFitter isn't open source, and we don't have the code. We do have the code for HSHFitter. Are the fitters the problem - or can you not run the RTiBuilder application? Please post any specific error messages you receive. Thanks - and I've just pinged the folks that were working on all these things to try to get an update. I'll let you know if there is a way for you to get involved. I appreciate the offer. Carla
  21. As I was unsuccessful with OS X Catalina i've installed Win 10 via VirtualBox. After downloading and installing RTIBuilder widows deleted it automatically telling me it contains a virus. I have do not have any special virus software, whatever comes with Win 10. Any ideas, suggestions?
  22. ...and now it happened ... i bought new Mac an i can not use RTIBuilder anymore Trying to set up virtual machine older OS X or Win 10. Pain. As said earlier, I would be happy to help to put together the project to update RTI tools.
  23. Hi Alessandro, Thanks for that information. By 'source' for the images I meant what camera and what type of file are you capturing (ARW, RAW, DNG, TIF etc.) and resolution; and any processing you're doing before attempting to make the RTI PTM. If you are able to share, if you could upload two folders (i) the files directly from the camera, and (ii) whatever you're trying process, to DropBox or similar, then I'd be glad to have a look and try to build PTM on my own workstations (will be a few days before I would have time though). Regards Dave
  24. Thank you Dave! I've already tried using the Fish Fossil files provided by CHI and it works fine with that (also the visualization with the rti-reader). When I try with my images it doesn't work: with the "manually changed" .jpg to .jpeg the open folder button crash (glitch, meaning it doesn't work; it doesn't upload the images). With the initial .jpg files I use (I do not work with .raw, and that should be another question, but not now..) the folder charge, than ball detection, highlight detection, than also cropping but it stops during executing, showing me that unknown error (unknow file format: .JPG, in the right side of the window). When using .jpg files, it load my images, ball detection, highlight detection, executing, it stop with the error, but it creates the assembly folder (with inside two .lp files and three .jpg files), it also create a .xml file in my folder. So I can't understand why this happens. 1- I've never succesful created a ptm, (only the fish fossil with the files already provided) 2- I'm running Windows 10 Home (x64), with 8gb Ram and a i5 processor. 3- The size of my pictures is 4608x3072 (rti-builder final step) but I also tried resing it to 3000x2000. What do you mean for "source"? Thanks Alessandro
  25. (This thread would really be better in the 'RTI Processing' section, maybe one of the Admins could move it?) Hi Alessandro, A couple of questions, then a suggestion. 1) Have you ever built successfully using PTM? 2) Can you advise what operating system and version you're running? 3) Can you advise size and source of your images? To identify if it is a problem with your images or with the installation on your computer, could I suggest you try using one of the sample image sets which CHI provide, as they are known to work. Please forgive me if these duplicate what you know or have tried, but this is the simplest set of steps, could you try these as they definitely work (below are written for a Windows operating system). Dave === On your PC, if you don’t already have one, make a folder RTI at the top level on your C: drive, and within that, make a folder Fish_1000 so you end up with C:\RTI\Fish_1000 Download the Fish_1000 set of example files from http://culturalheritageimaging.org/What_We_Offer/Downloads/Process/ And then – somewhere else on your PC - expand the fish_fossil-data-set_1000.zip file. In the zip file, down one level, you will see a folder jpeg-exports Copy that folder and its contents into C:\RTI\Fish_1000 so you end up with C:\RTI\Fish_1000\jpeg-exports which will contain 36 photographs named fish_fossil_01.jpg through fish_fossil_36.jpg Start RTI Builder In the Project Name box, type Fish_1000_PTM In the Operation Sequence block, click on the first option – Highlight based (PTM Fitter) Then click the [Start new project] button On the Image selection screen which opens with an initial blank list, click the [Open folder] button at the right-hand edge of the screen In the Windows selection box which pops-up, it usually seems to default browsing to ‘My Documents’. Click on the ‘Computer’ icon (fourth one down) in the left-hand bar Double-click on C: Double-click on the RTI folder Double-click on the Fish_1000 folder Then click [Open] (N.B. please don’t click on the ‘jpeg-exports’ folder) You should then see a pop-up ‘Loading images’ with a progress bar When all the images have loaded, you should then see 36 images in the selection pane after which you should be able to proceed with RTI processing; and as you proceed with building your RTI model, you should see an xml and other folders appear in the project folder, so eventually, if you just proceed (using default options and not cropping) you will have: C:\RTI\Fish_1000\assembly-files C:\RTI\Fish_1000\finished-files C:\RTI\Fish_1000\jpeg-exports C:\RTI\Fish_1000\Fish_1000_PTM.xml and your finished model will be C:\RTI\Fish_1000\finished-files\ Fish_1000_PTM_1000.ptm
  26. Hey! I have problems during the execution of the builder with the PTM Fitter. It start cropping images but at the end appears the "unknow error" message, and in the upper right of the windows the message is "unlnow file format: .JPG". I've tried changing the extensions in .jpg (downsizing) and in .jpeg (maybe the program can only read .jpeg..), but nothing change. Every time I've made I change I started a new project, just to be sure I did not commit any error. With the HSH Fitter everything is okay! P.s. When I tried upload the folder with the "jpeg-exports" the builder do not start uploading images and he glitch the hourglass. I had to brutally close the program. I tried many times many combinations but nothing.
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