"No calibration found" for spherical cameras

[cpkcpkcpk]

Hey,

Would it be possible to get this working with spherical / equirectangular camera positions exported from Metashape? Colmap doesn't support 360 images, so would be amazing if your script worked for this!

Here is a snippet from the xml, which is quite different to the regular "frame" type.

<?xml version="1.0" encoding="UTF-8"?> <document version="1.5.0"> <chunk label="Chunk 1" enabled="true"> <sensors next_id="1"> <sensor id="0" label="unknown" type="spherical"> <resolution width="5760" height="2880"/> <property name="layer_index" value="0"/> <bands> <band label="Red"/> <band label="Green"/> <band label="Blue"/> </bands> <data_type>uint8</data_type> <black_level>0 0 0</black_level> <sensitivity>1 1 1</sensitivity> </sensor> </sensors> <components next_id="1" active_id="0"> <component id="0" label="Component 1"> <region> <center>-8.9246900915267902e-01 2.0682838682109413e+01 2.5898418643679420e+01</center> <size>1.5354224936167401e+02 6.7941420046488446e+01 6.0285307184855142e+01</size> <R>-4.0138366329283741e-02 8.4499921858002310e-03 -9.9915840044533299e-01 -9.9821655039162638e-01 -4.4561741820354980e-02 3.9723666625547417e-02 -4.4188574005706568e-02 9.9897089487031399e-01 1.0223557568002074e-02</R> </region> <partition> <camera_ids>0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89</camera_ids> </partition> </component> </components> <cameras next_id="90" next_group_id="0"> <camera id="0" sensor_id="0" component_id="0" label="output_0001"> <transform>9.9959579221709571e-01 2.4701712245502279e-02 1.4074004192741969e-02 7.8205878137425722e-01 2.4443283329927897e-02 -9.9953467003790475e-01 1.8247446184902816e-02 -1.5206475018149446e-01 1.4518198301779174e-02 -1.7896055553066947e-02 -9.9973444129614353e-01 6.6758626639336242e+01 0 0 0 1</transform> </camera>

[EnricoAhlers]

Sadly 360 degree cameras are not supported. I have tried it already but didn't have any success. Outdoor scenes aren't working that well in general.

[cpkcpkcpk]

Ah, that's a shame. Metashape Pro does a great job with equirectangular images and it would be amazing to export the cameras for instant-ngp somehow (before my Pro trial runs out haha).

I have tried splitting the equirectangulars into cubemaps using a few different methods, but Metashape usually fails to align these as there isn't enough overlap.