GPS Visualizer – Interactive Time-Based GPS Signal Visualization

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Is your feature request related to a problem? Please describe.
There is currently no way in Label Studio to visualize GPS signals on a map. The best we can do is display latitude and longitude information in a table or as a time series chart, which is not an intuitive or effective way to understand spatial and temporal patterns in GPS data. This makes it difficult to analyze movement, identify stationary periods, or annotate events in a way that is meaningful for geospatial data.

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Describe the solution you'd like
I would like to add a GPS Visualizer component to Label Studio that enables interactive, map-based visualization of time-based GPS signals. This component should:

• Display GPS tracks on a map, with each point linked to its timestamp.
• Detect and visualize stationary clusters as circles, showing where and when stops occurred.
• Draw arrows on the outline of each stationary cluster, pointing toward the next cluster, with a distance label in front of the arrow.
• Synchronize a timeline or waveform with the map, allowing users to play, pause, and scrub through time.
• Support annotation of regions or events, linking them between the map and the timeline.
• Allow toggling of clusters, arrows, and labels for a customizable view.

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Describe alternatives you've considered

• Using the current table or time series display in Label Studio, but these do not provide spatial context or intuitive visualization for GPS data.
• Exporting GPS data to external GIS or mapping tools, which is cumbersome and breaks the annotation workflow.
• Building separate map and timeline components, but this does not provide the seamless, linked experience needed for effective analysis.

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Additional context
This feature would be especially useful for applications like sports analysis, delivery/logistics tracking, wildlife movement studies, and any scenario where understanding both the timing and location of stops and movements is important.
A visual, interactive GPS Visualizer would make it much easier to analyze, annotate, and review geospatial data directly within Label Studio.

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I’m creating a new GPSMap component and want to include an altitude waveform visualization alongside the map. I’ve noticed that the existing Timeline component is already used for playback controls (play, pause, etc.) and is architected to support different “views” (like frames and waves). However, it doesn’t currently support a generic time series view, which would be ideal for displaying altitude (and potentially other data series in the future).
I see two possible approaches:

1. Extend Timeline with a Time Series View:
2. Add a new “time series” view to the Timeline component, so it can render arbitrary time series data (like altitude, speed, etc.) in addition to the existing frames and wave views.
3. This would keep controls and navigation consistent and lay the groundwork for visualizing multiple series in the future.
4. Keep the Visualization Local to GPSMap:
5. Build the altitude waveform as a GPSMap-specific component for now, since altitude is only meaningful in this context.
6. This would avoid changes to the Timeline component and keep the initial implementation more focused and lower risk.

Given that Timeline is already set up for pluggable views, do you think it makes sense to add a generic time series view now, or should I keep the visualization local to GPSMap until we have more use cases for time series data?

[heidi-humansignal]

Hello,

I'll create a feature request for this. I think you can keep the visualization local to GPSMap and when you do the PR, eng team will provide feedback on that.

Thank you,
Abu

Comment by Abubakar Saad
Workflow Run

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Status Report

This report outlines the current implemented functionalities of our integrated data analysis platform, covering both GPS data synchronization and advanced audio annotation capabilities.

Demos:

• GPS Features Demo: https://www.loom.com/share/58a3b1a4e4d74c2696053f8140d3d65e

1. GPS Data Integration & Synchronization

(Based on GPS Features Demo)

• Visual Geographic Context: The system displays recorded GPS tracks on an interactive map interface, allowing users to visually follow the path taken during the audio recording.

• Bi-Directional Synchronization: A key strength is the seamless, two-way link between Sync sources (e.g. Audio) and GPS data.

  • Audio to GPS: As the user plays or scrubs through the audio timeline, the corresponding GPS location at that moment is dynamically highlighted on the map (e.g., with a moving blue dot).
  • GPS to Audio: Clicking on any point along the GPS track on the map instantly jumps the audio playback to the exact time that GPS point was recorded.

• Detailed GPS Point Information: When a GPS point is selected (either via audio sync or direct map click), a dedicated panel displays rich metadata for that specific point, including:

  • Latitude
  • Longitude
  • Altitude (in meters)
  • Speed (in kilometers per hour)
  • Bearing (direction of travel, in degrees)
  • Horizontal Accuracy (in meters)

• Intelligent Track Clustering: To improve map readability, especially during stationary periods or slow movement, the system automatically clusters GPS points very close in time and space.

  • This clustering behaviour is configurable via settings.
  • Crucially, even when points are clustered, the system retains the granularity of the underlying data. During synced audio playback through a clustered region, the highlight still follows the individual, precise GPS points within that cluster, ensuring no loss of detail in the synchronization.

2. Annotation & Segmentation

• Region Selection & Labeling: Users can:

  • Precisely select specific time regions within the map by clicking and dragging on the waveform.
  • Assign custom text labels or tags (e.g., "Test1," "Important Segment," "Background Noise") to these selected segments.

• Organized Label Management:

  • All created labels are displayed in an organized list within a dedicated panel.
  • These labels are also visually represented directly on the audio timeline, clearly marking the start and end of each annotated segment.

• Efficient Navigation & Focused Playback:

  • Clicking on a label in the list instantly navigates the gps player and selection to the corresponding labeled segment.

[heidi-humansignal]

Hello,

Apologizes for the delay. I've created a feature request for this. I'll follow up as soon as I hear from product team.

Thank you,
Abu

Comment by Abubakar Saad
Workflow Run