# Map data and detections **URL:** https://forum.mapillary.com/c/imagery-data-integrations/map-data-detections/69.md [Latest](https://forum.mapillary.com/latest.md) · [Categories](https://forum.mapillary.com/categories.md) --- ## [About the map data and detections category](https://forum.mapillary.com/t/about-the-map-data-and-detections-category/1708)
**Author:** [@katrin](https://forum.mapillary.com/u/katrin)\ **Replies:** 1\ **Last updated:** [April 1, 2019, 12:47am UTC](https://forum.mapillary.com/t/about-the-map-data-and-detections-category/1708 "2019-04-01T00:47:40Z")
Discuss the object detections and map data extraction we do with computer vision. --- ## [Auto blurring blurs street names](https://forum.mapillary.com/t/auto-blurring-blurs-street-names/10731)
**Author:** [@Warrandyte](https://forum.mapillary.com/u/Warrandyte)\ **Replies:** 11\ **Last updated:** [October 20, 2026, 1:53pm UTC](https://forum.mapillary.com/t/auto-blurring-blurs-street-names/10731 "2026-10-20T13:53:51Z")
Hi, I have a issue with the auto blurring feature applying blurs to australian street signs, they have a blur applied from afar but it stops blurring when closer, however some signs will not be passed in a specific se… --- ## [Street sign recognition seems missing](https://forum.mapillary.com/t/street-sign-recognition-seems-missing/10627)
**Author:** [@GIStrophyclub](https://forum.mapillary.com/u/GIStrophyclub)\ **Replies:** 9\ **Last updated:** [August 24, 2026, 12:17pm UTC](https://forum.mapillary.com/t/street-sign-recognition-seems-missing/10627 "2026-08-24T12:17:52Z")
We just started the project here about a week ago. We are using a go pro max2 360 video at 4k probably driving around 20-30mph. When we upload the video and it converts them to images. The images look grainy and our stre… --- ## [Australian sign type not in database](https://forum.mapillary.com/t/australian-sign-type-not-in-database/10416)
**Author:** [@wa\_wheatbelt](https://forum.mapillary.com/u/wa_wheatbelt)\ **Replies:** 11\ **Last updated:** [June 4, 2026, 10:46am UTC](https://forum.mapillary.com/t/australian-sign-type-not-in-database/10416 "2026-06-04T10:46:52Z")
Hi. Just letting you know about a traffic sign that Mapillary doesn’t seem to detect. In Australia, we have speed derestriction signs. Their meaning differs between states. But basically they signify that the signposted… --- ## [Blurring of traffic signs](https://forum.mapillary.com/t/blurring-of-traffic-signs/10392)
**Author:** [@koninklijke](https://forum.mapillary.com/u/koninklijke)\ **Replies:** 4\ **Last updated:** [May 30, 2026, 7:10am UTC](https://forum.mapillary.com/t/blurring-of-traffic-signs/10392 "2026-05-30T07:10:29Z")
Dearest Mapillary, Let me repeat this, for the avoidance of doubt: traffic signs, while loitering at street corners, are not likely to suffer any consequences of their (in-)actions; they also do not qualify as human bei… --- ## [Are there any issues with Mapillary?](https://forum.mapillary.com/t/are-there-any-issues-with-mapillary/10414)
**Author:** [@Lowiekse](https://forum.mapillary.com/u/Lowiekse)\ **Replies:** 10\ **Last updated:** [May 29, 2026, 12:39pm UTC](https://forum.mapillary.com/t/are-there-any-issues-with-mapillary/10414 "2026-05-29T12:39:09Z")
No matter which sequence I try to watch, I get this error message every time. The photo appears when I hover over the dots. But as soon as I try to open it, an error message appears --- ## [Are some raindrops okay?](https://forum.mapillary.com/t/are-some-raindrops-okay/10383)
**Author:** [@wa\_wheatbelt](https://forum.mapillary.com/u/wa_wheatbelt)\ **Replies:** 4\ **Last updated:** [May 27, 2026, 9:10am UTC](https://forum.mapillary.com/t/are-some-raindrops-okay/10383 "2026-05-27T09:10:12Z")
I did a great capture today, but it started raining lightly for a few minutes. Everything is in focus and well lit, but there are some spots of rain on my windscreen. Is that little bit of rain going to matter during Map… --- ## [Mapillary Traffic Sign Dataset Keys](https://forum.mapillary.com/t/mapillary-traffic-sign-dataset-keys/10282)
**Author:** [@viajerus](https://forum.mapillary.com/u/viajerus)\ **Replies:** 9\ **Last updated:** [March 30, 2026, 10:39pm UTC](https://forum.mapillary.com/t/mapillary-traffic-sign-dataset-keys/10282 "2026-03-30T22:39:06Z")
Hi there, I downloaded the Mapillary Traffic Sign Dataset. The images as well as the annotations have the “old” image\_key, which was deprectaded in v4. I wanted to search more metadata for each image of the dataset usin… --- ## [Geo coordinate of features](https://forum.mapillary.com/t/geo-coordinate-of-features/7682)
**Author:** [@fuse](https://forum.mapillary.com/u/fuse)\ **Replies:** 5\ **Last updated:** [November 21, 2025, 9:04am UTC](https://forum.mapillary.com/t/geo-coordinate-of-features/7682 "2025-11-21T09:04:12Z")
Hi, I’m new to Mapillary. I’ve been learning for a month and am currently working on collecting data. I want the geo coordinates of features that Mapillary can detect. I’ve used the API, but it returns geometry in pixel … --- ## [API: Identify images whose geometry was optimized together](https://forum.mapillary.com/t/api-identify-images-whose-geometry-was-optimized-together/10070)
**Author:** [@javier](https://forum.mapillary.com/u/javier)\ **Replies:** 1\ **Last updated:** [November 10, 2025, 5:32pm UTC](https://forum.mapillary.com/t/api-identify-images-whose-geometry-was-optimized-together/10070 "2025-11-10T17:32:21Z")
Using the Mapillary API, is there is a way to obtain the set of images that were optimised together (their 6-DoF poses and 3D map points) within Mapillary’s Structure-from-Motion pipeline? From the documentation, the fi… --- ## [Natural language search like KartaVision and Lyft "instant map"](https://forum.mapillary.com/t/natural-language-search-like-kartavision-and-lyft-instant-map/9884)
**Author:** [@dsdfidksmyw](https://forum.mapillary.com/u/dsdfidksmyw)\ **Replies:** 1\ **Last updated:** [August 20, 2025, 8:19am UTC](https://forum.mapillary.com/t/natural-language-search-like-kartavision-and-lyft-instant-map/9884 "2025-08-20T08:19:21Z")
KartaView launched KartaVision Beta recently. https://kartavision.com/ Here’s the part of the talk where they announced it. https://youtu.be/N92rACDMRak?t=13m18s In addition to the individual object detections I’d like… --- ## [Traffic sign recognition request](https://forum.mapillary.com/t/traffic-sign-recognition-request/1013)
**Author:** [@peewee32](https://forum.mapillary.com/u/peewee32)\ **Replies:** 8\ **Last updated:** [August 14, 2025, 10:43am UTC](https://forum.mapillary.com/t/traffic-sign-recognition-request/1013 "2025-08-14T10:43:16Z")
In the Netherlands we have three types op traffic signs for cycleways. 2 of them are recognised but the one that is usually the most scenic is not. It is very often blurred . It is sign G13 with the word “FIETSPAD” on i… --- ## [No Altitude Reconstruction](https://forum.mapillary.com/t/no-altitude-reconstruction/9359)
**Author:** [@GITNE](https://forum.mapillary.com/u/GITNE)\ **Replies:** 0\ **Last updated:** [March 9, 2025, 2:49pm UTC](https://forum.mapillary.com/t/no-altitude-reconstruction/9359 "2025-03-09T14:49:38Z")
@boris @nikola Imagery that has no GPSAltitude GPSAltitudeRef tags receives only limited altitude reconstruction. --- ## [Object detection Go Pro Max vs Go Pro 11](https://forum.mapillary.com/t/object-detection-go-pro-max-vs-go-pro-11/9033)
**Author:** [@Magnet](https://forum.mapillary.com/u/Magnet)\ **Replies:** 8\ **Last updated:** [February 8, 2025, 3:26pm UTC](https://forum.mapillary.com/t/object-detection-go-pro-max-vs-go-pro-11/9033 "2025-02-08T15:26:43Z")
Hi guys, I have the feeling that the object detection on my GoPro Hero 11 is much better (I guess it has to do with the resolution). So I’m wondering if it would make sense to use my Hero 11 as a second camera at the sa… --- ## [Suggestion: Ability to merge detected signs together](https://forum.mapillary.com/t/suggestion-ability-to-merge-detected-signs-together/8385)
**Author:** [@IreuN](https://forum.mapillary.com/u/IreuN)\ **Replies:** 1\ **Last updated:** [September 18, 2024, 10:52am UTC](https://forum.mapillary.com/t/suggestion-ability-to-merge-detected-signs-together/8385 "2024-09-18T10:52:52Z")
Sometimes mapillary detects one sign, but thinks it’s two different signs. Example here: https://www.mapillary.com/app/?pKey=110991004387395&lat=54.360749116218&lng=22.802749481073&z=17&trafficSign=all&focus=photo Ma… --- ## [How to retrieve images containing potholes](https://forum.mapillary.com/t/how-to-retrieve-images-containing-potholes/7954)
**Author:** [@OasisArtisan](https://forum.mapillary.com/u/OasisArtisan)\ **Replies:** 3\ **Last updated:** [April 7, 2024, 5:00am UTC](https://forum.mapillary.com/t/how-to-retrieve-images-containing-potholes/7954 "2024-04-07T05:00:07Z")
I am trying to figure out how to search for images containing potholes using the API. This post suggests potholes are included in the segmentation IDs. However neither the class ID nor the “value” is mentioned. I am lo… --- ## [Extremely low detection rates of some important traffic signs](https://forum.mapillary.com/t/extremely-low-detection-rates-of-some-important-traffic-signs/7215)
**Author:** [@GITNE](https://forum.mapillary.com/u/GITNE)\ **Replies:** 7\ **Last updated:** [April 10, 2024, 11:17am UTC](https://forum.mapillary.com/t/extremely-low-detection-rates-of-some-important-traffic-signs/7215 "2024-04-10T11:17:03Z")
While overall traffic sign detection works quite well, unfortunately there are still some outlying traffic sings. Especially, the yellow give way or sign, like the in Sweden or in Poland are still detected as false ne… --- ## [Traffic signs not shown on map since 3 years](https://forum.mapillary.com/t/traffic-signs-not-shown-on-map-since-3-years/7941)
**Author:** [@whatismoss](https://forum.mapillary.com/u/whatismoss)\ **Replies:** 1\ **Last updated:** [April 2, 2024, 3:36pm UTC](https://forum.mapillary.com/t/traffic-signs-not-shown-on-map-since-3-years/7941 "2024-04-02T15:36:55Z")
I have sequences in my area that still haven’t got their traffic sign detections 3 years after capture… Here are some examples : Is there a way to run the detections for those sequences? Its kind of a shame the… --- ## [Detection api in v4](https://forum.mapillary.com/t/detection-api-in-v4/4999)
**Author:** [@klay6096tw](https://forum.mapillary.com/u/klay6096tw)\ **Replies:** 15\ **Last updated:** [February 16, 2024, 9:45am UTC](https://forum.mapillary.com/t/detection-api-in-v4/4999 "2024-02-16T09:45:21Z")
Hi, I want to get specific categories’s bounding boxes(eg. car, human …) in image, 1 does v4 api provide entry to get object’s bounding boxes in image? 2 if not, I try to use polygons to transform to bounding boxes as … --- ## [Get Images with only traffic signs in it](https://forum.mapillary.com/t/get-images-with-only-traffic-signs-in-it/7803)
**Author:** [@Gianluca](https://forum.mapillary.com/u/Gianluca)\ **Replies:** 0\ **Last updated:** [February 12, 2024, 9:45am UTC](https://forum.mapillary.com/t/get-images-with-only-traffic-signs-in-it/7803 "2024-02-12T09:45:40Z")
Hi, I need for my project the image cropped with only the traffic signs, like the ones below. Because I need to pass it to a model that can recognize it, there is a way to get it through the Api call? --- ## [Null Island location](https://forum.mapillary.com/t/null-island-location/7760)
**Author:** [@JLL1234](https://forum.mapillary.com/u/JLL1234)\ **Replies:** 1\ **Last updated:** [January 22, 2024, 11:52am UTC](https://forum.mapillary.com/t/null-island-location/7760 "2024-01-22T11:52:34Z")
Where is Null Island on the map?! How do you manipulate the URL to include its coordinates?\[Processing: Null Island 2017.jpg…\](The buoy) --- ## [Crop images using polygon coordinates retrieved by detection](https://forum.mapillary.com/t/crop-images-using-polygon-coordinates-retrieved-by-detection/7697)
**Author:** [@Gianluca](https://forum.mapillary.com/u/Gianluca)\ **Replies:** 0\ **Last updated:** [January 3, 2024, 3:09pm UTC](https://forum.mapillary.com/t/crop-images-using-polygon-coordinates-retrieved-by-detection/7697 "2024-01-03T15:09:06Z")
Hi, I want to crop some images downloaded previously, using the map feature’s polygon coordinates obtained previously, to have an image containing only the road sign cut out from the image, I tried to normalize the coord… --- ## [Call to API Detection not working](https://forum.mapillary.com/t/call-to-api-detection-not-working/7645)
**Author:** [@Gianluca](https://forum.mapillary.com/u/Gianluca)\ **Replies:** 2\ **Last updated:** [December 6, 2023, 5:27pm UTC](https://forum.mapillary.com/t/call-to-api-detection-not-working/7645 "2023-12-06T17:27:28Z")
Hi, until a few days ago this code worked without any problem, today I don’t know why but the call I make to the API with detection no longer returns the image field with its id and geometry, but returns geometry string … --- ## [How to remove incorrectly placed objects on OSM?](https://forum.mapillary.com/t/how-to-remove-incorrectly-placed-objects-on-osm/7559)
**Author:** [@GanderPL](https://forum.mapillary.com/u/GanderPL)\ **Replies:** 6\ **Last updated:** [November 10, 2023, 6:06pm UTC](https://forum.mapillary.com/t/how-to-remove-incorrectly-placed-objects-on-osm/7559 "2023-11-10T18:06:16Z")
I found a sign placed in the middle of the square when it is somewhere else. I wanted to edit it in OSM, but it’s impossible. Then it must be editable on the Mapillary side? If there is already a thread about this here… --- ## [Trying to fetch traffic signs directly instead of object](https://forum.mapillary.com/t/trying-to-fetch-traffic-signs-directly-instead-of-object/7400)
**Author:** [@Triggredmap123](https://forum.mapillary.com/u/Triggredmap123)\ **Replies:** 1\ **Last updated:** [September 26, 2023, 9:22am UTC](https://forum.mapillary.com/t/trying-to-fetch-traffic-signs-directly-instead-of-object/7400 "2023-09-26T09:22:21Z")
My objective is to fetch traffic signs. I’ve tried various different resources from Mapillary Blogs and Forums. But they seem to only have a API link for object detections. I’m trying to narrow my results to only traffic… --- ## [Data point (speed sign) detected in image not show up on map](https://forum.mapillary.com/t/data-point-speed-sign-detected-in-image-not-show-up-on-map/6859)
**Author:** [@sealjack](https://forum.mapillary.com/u/sealjack)\ **Replies:** 7\ **Last updated:** [April 6, 2023, 3:55am UTC](https://forum.mapillary.com/t/data-point-speed-sign-detected-in-image-not-show-up-on-map/6859 "2023-04-06T03:55:28Z")
Hi, I just uploaded a series of images (Gold Coast, Australia) using the command line tool. I’ve turned on Data Point settings, and I can see the speed signs have been detected in the images, however, I couldn’t see it … --- ## [Why do some clearly detected traffic signs not show up on the map?](https://forum.mapillary.com/t/why-do-some-clearly-detected-traffic-signs-not-show-up-on-the-map/6490)
**Author:** [@TSquared](https://forum.mapillary.com/u/TSquared)\ **Replies:** 4\ **Last updated:** [December 3, 2022, 3:35pm UTC](https://forum.mapillary.com/t/why-do-some-clearly-detected-traffic-signs-not-show-up-on-the-map/6490 "2022-12-03T15:35:39Z")
Here are a couple of examples… The signs are clearly detected. Why don’t the show up on the map? --- ## [Objects from a sequence](https://forum.mapillary.com/t/objects-from-a-sequence/6506)
**Author:** [@sgonzalezd](https://forum.mapillary.com/u/sgonzalezd)\ **Replies:** 0\ **Last updated:** [November 3, 2022, 9:56am UTC](https://forum.mapillary.com/t/objects-from-a-sequence/6506 "2022-11-03T09:56:56Z")
Is there any call to detect all objects from a sequence like https://graph.mapillary.com/:sequence/detections?access\_token=token&fields=image,value,geometry ? Thanks a lot --- ## [Object detection not working](https://forum.mapillary.com/t/object-detection-not-working/6445)
**Author:** [@epicspongee](https://forum.mapillary.com/u/epicspongee)\ **Replies:** 5\ **Last updated:** [October 19, 2022, 1:21am UTC](https://forum.mapillary.com/t/object-detection-not-working/6445 "2022-10-19T01:21:43Z")
I bought a GoPro Max to upload some imagery and record where bike racks are in my city. I uploaded a sequence or two from my phone two weeks ago, then uploaded some sequences from my rides. It’s been a week and I’m stil… --- ## [Limited/No detections available in older imagery](https://forum.mapillary.com/t/limited-no-detections-available-in-older-imagery/6163)
**Author:** [@gchoumos](https://forum.mapillary.com/u/gchoumos)\ **Replies:** 4\ **Last updated:** [July 23, 2022, 1:47pm UTC](https://forum.mapillary.com/t/limited-no-detections-available-in-older-imagery/6163 "2022-07-23T13:47:19Z")
Hello, Is there a limited amount of detections available for older imagery? In particular, I am trying to fetch “nature–vegetation” and “nature–terrain” detections in images from 2017, and there are none at all. I have… [Next page](https://forum.mapillary.com/c/imagery-data-integrations/map-data-detections/69.md?page=1)