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10-31-2023
02:17 PM
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In version 2023.2 we've implemented support for multiple files with the same name.
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10-31-2023
02:15 PM
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Brent - sorry for the delay in responding to you. This is done by design - we are not able to create 3D products from thermal IR imagery, so you're limited to 2D processing. In the upcoming version 2023.2 (to be released soon), we'll add the ability to generate a True ortho if you have adequate overlap. In the current version your output will be a traditional frame-based orthomosaic.
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10-02-2023
09:18 AM
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Hello Lika Sorry for the delay - I'm not sure how I missed your post. Did you get this resolved? Can you tell me why you're adjusting the altitudes? Is it because the EXIF values are incorrect? (This is very common with many drones). Our recommended solution is to use ground control - is that not possible for your project areas? Cody B
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09-06-2023
09:41 AM
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Kathryn You're correct that your TotalStation control points will be more accurate than a drone's GPS points, but accuracy is only part of the question. without any relative positioning information, the software won't know if image 77 is north, south, east, or west of image 76. I haven't actually tested this but you should be able to proceed if you're willing to build a simple table with estimated camera positions - e.g. filename with path, longitude, latitude, altitude (above sea level) should be enough - but that might be a bit tedious. You can calculate intermediate photo positions if you can estimate start and end positions for the first and last image and the spacing between flightlines. As noted I haven't tested this so I'm not sure if you can make it work without creating that table. If you can get the project started, you should get good accuracy with your control points. The other question is camera - will your camera be in our drone camera database? https://doc.arcgis.com/en/drone2map/latest/help/edit-camera.htm Cody B.
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08-31-2023
09:13 PM
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Frank using D2M via remote desktop is fine. Are your source images local to the VM? Accessing imagery via network can be problematic depending on the speed of your network. This will be difficult to troubleshoot with text messages back and forth. I think you'll get a faster resolution if you open a tech support ticket at https://support.esri.com/en-us/overview Cody B
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08-11-2023
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There's no mention above regarding ground control. If you're seeking to compare datasets from different days, it will be critical that you have good 3D control points distributed across the project area. Since your area of interest is a linear feature, make sure you have control near the ends and multiple points along the canal. "How many?" depends on the length captured in a single flight but I'd suggest a minimum of 10, using 6-7 for control and withholding 3-4 as check points. Of course, more is better. You'll want the accuracy of your control to be ~3 times greater than what you're seeking to measure, so if you want to detect changes of ~10 cm, aim for control accurate to 4-5 cm. Last, I would recommend you survey permanent features (concrete corners) so you can use the same control points for multiple dates (and you can go back and measure control *after* the flight has been completed - e.g. if you decide you need more control points). Temporary control markers are certainly usable but it may be visually confusing if you have temporary control markers in different locations on different dates.
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08-10-2023
07:49 AM
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Alex OK got it, thanks. In this thread, Carlos was asking about a 360 camera (he didn't specify which one - something like https://www.insta360.com/ or https://www.flir.eu/products/ladybug6) that shoots images in all directions and generates a composite spherical image from every exposure station. Cody
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07-28-2023
06:51 AM
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Alexander This sounds like your test was done with a normal frame camera (SLR, iPhone, etc.). Can you confirm you were using a camera that captured full 360 degree images? What output products did you generate in Site Scan? Cody B
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07-27-2023
04:01 PM
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Carlos Can you clarify what output products you are seeking, and why you're using a 360 degree camera? Photogrammetric processing generally assumes you're working with a frame camera with a single sensor, and looking toward your project area. Terrestrial data capture is definitely a challenge, but adding the 360 views looking in all directions makes the processing much more complicated. If you're seeking an orthomosaic, you need to capture from above, and if you're seeking to generate a 3D mesh or point cloud, I would recommend a single frame camera, not a 360. If you need a solution for 360 degree imagery, you should consider oriented imagery in ArcGIS. See https://esriurl.com/OrientedImageryWorkflow Cody B.
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07-27-2023
03:59 PM
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Thanks to Jeff for offering the suggestion to do this analysis in ArcGIS Pro. For Melody, I've confirmed with the development team that there is a software licensing limitation that prevents us from exposing the export capability, so that menu will be removed in the next release. Moving to Pro is the recommended workflow. Thanks Cody B.
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07-27-2023
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BLOG
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This July in San Diego for this year’s User Conference (UC), there are hundreds of opportunities to learn, grow, and be inspired—with sessions, workshops, demos, and opportunities to network about all things imagery and remote sensing. This year, we want to highlight a unique opportunity with the American Society for Photogrammetry and Remote Sensing (ASPRS), the professional organization providing leadership and standards for our work. From their mission statement: “... to advance knowledge and improve understanding of mapping sciences to promote the responsible applications of photogrammetry, remote sensing, geographic information systems (GIS) and supporting technologies.” ASPRS will be at the Esri User Conference, hosting an informative technical workshop on Sunday July 9. This hands-on session will cover the newly revised standards and guidelines to be aware of and report against, regarding positional accuracy of imagery and elevation data. Note that registration for this workshop will include a free in-person pass to the Esri UC 2023! Bring a colleague! You will also receive a certificate for four Professional Development Hours (PDH) for completing an ASPRS workshop. You’ll find more information about the workshop below. To learn more and register, visit: https://my.asprs.org/2023esriucworkshops. ASPRS 2023 Workshop Applying the 2023 ASPRS Positional Accuracy Standards and Guidelines to Imagery and Elevation Data Sunday, July 9 8:00 AM–12:00 PM PDT In this 4-hour workshop instructed by Dr. Qassim Abdullah, the Vice President and Chief Scientist of Woolpert, Inc. and Chair of the ASPRS Positional Accuracy Standards Working Group, you will learn about the updates made in the 2nd Edition of the Positional Accuracy Standards. Such updates include changes pertaining to checkpoints and ground control points, three-dimensional positional accuracy, changes to lidar data requirements, and addendums on reporting, field survey, and mapping (for photogrammetry, lidar, and UAS). In addition, you will also learn about a free, web-based Accuracy Assessment Tool from Esri that leverages the 2023 ASPRS Positional Accuracy Standards to determine the accuracy of ortho images and generate reports.
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06-27-2023
09:00 PM
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Hi, sorry I did not see these messages long ago. It's right here in the Help https://doc.arcgis.com/en/drone2map/latest/help/radiometric-calibration.htm was also available in v2022.1 https://doc.arcgis.com/en/drone2map/2022.1/help/radiometric-calibration.htm
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05-24-2023
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Thanks to Mark for posting the workflow. If you're interested, we've published a blog discussing the different ways of compiling images into the orthoimage outputs - True orthos, the traditional orthomosaic, and also the dynamic mosaic (a.k.a. image collection). See https://esriurl.com/3orthoTypesArcGIS
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05-16-2023
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