From @AnthonyCoughlin on Sat Jun 10 2017 23:32:51 GMT+0000 (UTC)
Hey @pierotofy
Wanted to give you guys some prospective on ODM vs. DroneDeploy. First off, I updated WebODM this morning. I captured these images this afternoon (10Jun17). Its a small field house at a sports complex. I processed the images through WebODM using the default settings and also processed them through DroneDeploy. See the attached screenshots. Also below, I’ve uploaded the images to Google Drive and provided a link if you’d like to inspect.
I really really dislike the drone deploy result: They are completely omitting roof overhang!
ODM however will produce much better results with parameter tweaking I guess.
From @AnthonyCoughlin on Sun Jun 11 2017 20:46:09 GMT+0000 (UTC)
Man, the Photoscan results look great. What do you mean by “no manual tie-in points were set” (ground control points?) and how do I correct it!!?? I’m still learning the inner workings of ODM!
From @flyandi on Fri Jul 21 2017 16:25:29 GMT+0000 (UTC)
So what parameter tweaking do you have to do to achieve similar results? I am still trying to figure out the best angles to capture proper image data to generate high resolution 3d models from objects.
From @AnthonyCoughlin on Fri Jul 21 2017 16:39:29 GMT+0000 (UTC)
@Fi156, I would like to know more about “better parameter tweaking” as well. I use force focal length for sure. I am still having difficulty understanding and obtaining the correct CCD width for my on board camera. If somebody could please advise. For GPS I just utilize the EXIF data. I also adjust the octree level depending on the level of detail.
From @AnthonyCoughlin on Fri Jul 21 2017 17:41:55 GMT+0000 (UTC)
I fly Autel Robotics. The EXIF data has the camera listed as XB004. Some of my research has shown that the X-STAR uses the Sony Exmor-R sensor. Correct me if I am wrong, but this sensor uses CMOS technology and not CCD and I’m not 100% if this effects the results of ODM. However, on the Wikipedia page under the Exmor-R sensors section, there is a 12MP version so I use the dimension listed there (7.81mm)…
