Hi,
I am trying to process a set of images for which coordinates are visible in the exif data but for which Webodm returns the following message:
“GPS position not available for FP_07_DSC00953”
I am not sure what is happening here.
Thanks in advance for your help.
best regards
Thomas Drouin
Just to be more precise the set of photos contains 1069 images and the same message is returned for each one of them.
regards
Are you able to share the dataset so they can be debugged?
Hi,
Thanks for your help.
The total set of photos is more than 25 000 photos.
I can share part of the flight 7 which I was trying to process as a trial run for the bigger set.
That flight 7 is already 1069 photos amounting to 10.4 GB
I think the problem is the same in the entire set, so maybe I could send you 2GB worth of photos as a sample through something like Wetransfer?
Let me know what is the easiest way to share it with you
best regards
Thomas Drouin
A cluster of maybe 50 photos should be fine, especially if you can include that image above (FP_07_DSC00953) in that cluster.
Any means you can share with is fine, though we do have our DroneDB.app which is well-suited for this type of sUAS data sharing and visualization.
Hi
Thanks.
I put 50 photos on DroneDB.
https://hub.dronedb.app/r/thomasdrouin/no-gps-location-available
Do you have access to this link?
That FP_07_DSC00953 was just an example. The exact same message is returned for every photos of the set, while coordinates are showing in the exif data.
I am processing the set on a 64GB ram computer in my office and it has been running for the past 67 hours now.
BTW here are my settings and the processing starting point:
[INFO] Initializing ODM 2.8.4 - Mon May 23 14:39:17 2022
[INFO] ==============
[INFO] auto_boundary: True
[INFO] boundary: {}
[INFO] build_overviews: False
[INFO] camera_lens: auto
[INFO] cameras: {}
[INFO] cog: True
[INFO] copy_to: None
[INFO] crop: 3
[INFO] debug: False
[INFO] dem_decimation: 1
[INFO] dem_euclidean_map: False
[INFO] dem_gapfill_steps: 3
[INFO] dem_resolution: 5
[INFO] depthmap_resolution: 640
[INFO] dsm: True
[INFO] dtm: False
[INFO] end_with: odm_postprocess
[INFO] fast_orthophoto: False
[INFO] feature_quality: high
[INFO] feature_type: sift
[INFO] force_gps: True
[INFO] gcp: None
[INFO] geo: None
[INFO] gps_accuracy: 0.2
[INFO] ignore_gsd: True
[INFO] matcher_neighbors: 200
[INFO] matcher_type: flann
[INFO] max_concurrency: 4
[INFO] merge: all
[INFO] mesh_octree_depth: 11
[INFO] mesh_size: 200000
[INFO] min_num_features: 80000
[INFO] name: 37ef1a14-5e65-4d1e-943e-e54ddd184998
[INFO] optimize_disk_space: False
[INFO] orthophoto_compression: DEFLATE
[INFO] orthophoto_cutline: False
[INFO] orthophoto_kmz: False
[INFO] orthophoto_no_tiled: False
[INFO] orthophoto_png: False
[INFO] orthophoto_resolution: 5
[INFO] pc_classify: False
[INFO] pc_copc: False
[INFO] pc_csv: False
[INFO] pc_ept: True
[INFO] pc_filter: 2.5
[INFO] pc_geometric: False
[INFO] pc_las: False
[INFO] pc_quality: medium
[INFO] pc_rectify: False
[INFO] pc_sample: 0
[INFO] pc_tile: False
[INFO] primary_band: auto
[INFO] project_path: D:\WebODM\resources\app\apps\NodeODM\data
[INFO] radiometric_calibration: none
[INFO] rerun: None
[INFO] rerun_all: False
[INFO] rerun_from: [‘dataset’, ‘split’, ‘merge’, ‘opensfm’, ‘openmvs’, ‘odm_filterpoints’, ‘odm_meshing’, ‘mvs_texturing’, ‘odm_georeferencing’, ‘odm_dem’, ‘odm_orthophoto’, ‘odm_report’, ‘odm_postprocess’]
[INFO] resize_to: 2048
[INFO] sfm_algorithm: incremental
[INFO] skip_3dmodel: False
[INFO] skip_band_alignment: False
[INFO] skip_orthophoto: False
[INFO] skip_report: False
[INFO] sm_cluster: None
[INFO] smrf_scalar: 1.25
[INFO] smrf_slope: 0.15
[INFO] smrf_threshold: 0.5
[INFO] smrf_window: 18.0
[INFO] split: 999999
[INFO] split_image_groups: None
[INFO] split_overlap: 150
[INFO] texturing_data_term: gmi
[INFO] texturing_keep_unseen_faces: False
[INFO] texturing_outlier_removal_type: gauss_clamping
[INFO] texturing_skip_global_seam_leveling: False
[INFO] texturing_skip_local_seam_leveling: False
[INFO] texturing_tone_mapping: none
[INFO] tiles: False
[INFO] time: False
[INFO] use_3dmesh: False
[INFO] use_exif: True
[INFO] use_fixed_camera_params: False
[INFO] use_hybrid_bundle_adjustment: False
[INFO] verbose: False
[INFO] ==============
[INFO] Running dataset stage
[INFO] Loading dataset from: D:\WebODM\resources\app\apps\NodeODM\data\37ef1a14-5e65-4d1e-943e-e54ddd184998\images
[INFO] Loading 1069 images
[INFO] Wrote images database: D:\WebODM\resources\app\apps\NodeODM\data\37ef1a14-5e65-4d1e-943e-e54ddd184998\images.json
[INFO] Found 1069 usable images
[WARNING] GPS position not available for FP_07_DSC00003.JPG
[WARNING] GPS position not available for FP_07_DSC00004.JPG
(…)
And here is where Webodm is at for the past 3 days now
(…)
2022-05-26 09:35:09,243 DEBUG: Matching FP_07_DSC00782.JPG and FP_07_DSC00737.JPG. Matcher: WORDS (symmetric) T-desc: 6.138 T-robust: 2.134 T-total: 8.273 Matches: 32 Robust: 10 Success: False
2022-05-26 09:35:14,059 DEBUG: Matching FP_07_DSC00342.JPG and FP_07_DSC00942.JPG. Matcher: WORDS (symmetric) T-desc: 22.174 T-robust: 1.314 T-total: 23.489 Matches: 41 Robust: 9 Success: False
2022-05-26 09:35:15,334 DEBUG: Matching FP_07_DSC00561.JPG and FP_07_DSC00800.JPG. Matcher: WORDS (symmetric) T-desc: 20.612 T-robust: 0.020 T-total: 20.632 Matches: 33 Robust: 9 Success: False
2022-05-26 09:35:15,419 DEBUG: No segmentation for FP_07_DSC00313.JPG, no features masked.
2022-05-26 09:35:19,408 DEBUG: Matching FP_07_DSC00361.JPG and FP_07_DSC00844.JPG. Matcher: WORDS (symmetric) T-desc: 10.148 T-robust: 0.018 T-total: 10.166 Matches: 34 Robust: 9 Success: False
2022-05-26 09:35:22,998 DEBUG: Matching FP_07_DSC00026.JPG and FP_07_DSC00150.JPG. Matcher: WORDS (symmetric) T-desc: 7.642 T-robust: 0.019 T-total: 7.663 Matches: 37 Robust: 9 Success: False
2022-05-26 09:35:25,970 DEBUG: Matching FP_07_DSC00559.JPG and FP_07_DSC00059.JPG. Matcher: WORDS (symmetric) T-desc: 10.635 T-robust: 0.021 T-total: 10.656 Matches: 44 Robust: 10 Success: False
2022-05-26 09:35:30,473 DEBUG: Matching FP_07_DSC00313.JPG and FP_07_DSC00604.JPG. Matcher: WORDS (symmetric) T-desc: 21.213 T-robust: 0.017 T-total: 21.230 Matches: 30 Robust: 9 Success: False
2022-05-26 09:35:34,060 DEBUG: Matching FP_07_DSC00086.JPG and FP_07_DSC00670.JPG. Matcher: WORDS (symmetric) T-desc: 14.627 T-robust: 0.025 T-total: 14.652 Matches: 38 Robust: 9 Success: False
2022-05-26 09:35:37,335 DEBUG: Matching FP_07_DSC00806.JPG and FP_07_DSC00223.JPG. Matcher: WORDS (symmetric) T-desc: 14.307 T-robust: 0.028 T-total: 14.335 Matches: 37 Robust: 10 Success: False
(…)
Any feed back on the settings is most welcome.
Thanks in advance
Never a good idea!
I was hoping to gain some time in the processing 
It often causes crashes, and I’m not sure it does save any time.
Gordon is right. This will almost certainly lead to a crash and taking longer. You do not need to use this 
The dataset seems to be restricted, unfortunately.
Restricted?
You do not have access to the set I uploaded or the exif data are not accessible?
I do not have access to the set you uploaded, no.
Sorry
first time user 
I just made it public.
try again and let me know
Hmmm… Something is odd.
This isn’t the issue, but you should disable your camera from auto-rotating images when capturing. You have a mix of images with the wide axis parallel to the flight line and perpendicular to the flight line… This will severely mess up your flight planning as your overlap/sidelap assume a fixed camera orientation to the flight line.
The images lack GPSAltitudeRef and GPSLongitudeRef tags, making the GPS position ambiguous (is it north/south , west/east?).
As an improvement, future versions of ODM will guess it’s north and east, although this might not be correct.
Make sure the images have the proper tags.
The images position is North and East.
Where should these tags be ? In the exif data?
Sorry I am a real newbie but I can’t find those tags (GPSLatitudeRef, GPSLongitudeRef) neither in the exiftool display nor in the properties of the files.
They should be there with a blank instead of N, S, E, W? Or do I also have to add these tags with exiftool in the metadata of the files ?
Yes, you’ll need to add them using exiftool.