Largest sequence on Mapillary

1

I read some threads about how long a sequence can or should be. My question out of curiosity is: What is the largest sequence (+link) you encounter, or is even the largest sequence known. Happy to hear your experiences :slight_smile:

2

Sequences will always be cut into max 1000 images, you shouldn’t find any longer sequences.

3

Well, this is obviously not true (at least not anymore). This user (https://www.mapillary.com/app/user/osmplus_org) uploads much longer sequences here ;). I saw one above 15k…

4

I once had the option to set more than 1000, but those sequences have been on processing for months and only one image is visible.

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5

That’s strange. When I upload through the Mapillary desktop app the sequences are always cutoff at 1000 images, even when the map holds > 8000 images.

When using mapillary_tools the sequences are always cutoff at 1000, see the logfile below:
[19:22:25] [mapillary_tools.exe] 19:22:25.865 - INFO - ==> Processing sequences…
[19:22:25] [mapillary_tools.exe] 19:22:25.897 - INFO - Created 25 sequences by folders and cameras
[19:22:25] [mapillary_tools.exe] 19:22:25.922 - INFO - Split sequence at GS030507_Kroondomein_gpmf_final_0_001001.jpg: too many images (1001 > 1000)
[19:22:25] [mapillary_tools.exe] 19:22:25.924 - INFO - Split sequence at GS030507_Kroondomein_gpmf_final_0_002001.jpg: too many images (1001 > 1000)
[19:22:25] [mapillary_tools.exe] 19:22:25.926 - INFO - Split sequence at GS030507_Kroondomein_gpmf_final_0_003001.jpg: too many images (1001 > 1000)
[19:22:25] [mapillary_tools.exe] 19:22:25.928 - INFO - Split sequence at GS030507_Kroondomein_gpmf_final_0_004001.jpg: too many images (1001 > 1000)
[19:22:25] [mapillary_tools.exe] 19:22:25.950 - INFO - Split sequences: 25 → 29
[19:22:26] [mapillary_tools.exe] 19:22:26.113 - INFO - ==> Validating 15893 metadatas…
[19:22:31] [mapillary_tools.exe] 19:22:31.299 - INFO - Check the description file for details: D:\Mapillary\360_Final\Mapillary_Output\mapillary_image_description.json
[19:22:31] [mapillary_tools.exe] 19:22:31.299 - INFO - ==> Process summary
[19:22:31] [mapillary_tools.exe] 19:22:31.303 - INFO - 15893 image read in total

Edit: 1000 images is the standard setting, for mapillary tools you can adjust the sequence length:
set MAPILLARY_TOOLS_MAX_SEQUENCE_LENGTH=5000 (5000 as example)
or MAPILLARY_TOOLS_MAX_SEQUENCE_LENGTH=inf

I don’t have any issues with sequences of 1000, therefore I will not change this default setting.

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