Build maps from your video
From your Dashboard page you can upload videos, as well as view, manage, and export your existing videos.
When uploading video files first make sure you are uploading from a location with a stable internet connection.
- From your Dashboard page click Upload.
- Drag your video files and any corresponding metadata files into the uploader.
- Give your upload a batch name if desired.
- Adjust the Map Resolution if desired. We recommend Normal for most footage. High takes longer to process but may result in slightly more detailed 3D data and Low is ideal if you need your videos processed as soon as possible.
- Click Upload to begin uploading your video(s).
- When your upload is complete you will receive an email notification. Click Done.
If your video does not include any metadata you will be asked to provide a location estimate.
Add location estimate
For videos that do not contain any flightpath metadata you will see an Action Required alert in the video list. In the video detail panel you will find a Set Location Estimate button. This will allow you to specify a location for the video. Using this location Hivemapper will attempt to georegister your resulting map. To complete this step:
- Click on the Set Location Estimate button.
- On the map set the marker within 1.5 miles of the area where the video was captured.
- Click on the Set Location Estimate button.
If you don’t provide a location estimate your video will still generate a 3D model; however it cannot be added to the global map without completing this step. A new button allowing you to Change Location Estimate will now appear in the Dashboard allowing you to adjust in the event that your previous location estimate is inaccurate.
If your video completes processing before you can set the location all resulting maps will appear as Failed to register against satellite imagery. Once a location is set these segments will automatically restart processing.
Video to map generation
Once your videos have been uploaded, Hivemapper begins transforming your video to a 3D map. From this point onwards the process is entirely automated. To produce the map Hivemapper will work these videos through a series of steps:
|Video Transcoding||Converts video into a web friendly format for online viewing.|
|Frame Selection||Intelligently extracts frames from your video.|
|Clustering||Groups extracted frames together based on similarity.|
|Structure From Motion (SFM)||Finds the location of all the frames relative to each other in 3D space and generates a sparse point cloud.|
|Dense Reconstruction (MVS)||Adds additional points to create a more dense point cloud.|
|Mesh Creation||Generates a textured map from point cloud data|
|Imagery||Registers map to satellite imagery when no GPS metadata is available for your video.|
|Georegistration||Registers map to the global map|
|Video Mapping||Links video frames to the 3D map.|
|Merger||Integrates the new map into the global map.|
|Change Detection||Generates Change Detection data against overlapping maps.|
Generating 3D maps from video is a resource intensive process. Longer videos, and even shorter videos covering a larger area, may need to get broken up into multiple segments during Clustering. This means that a single video can result in multiple maps.
Each video segment processes separately and is color coded by which state the segment is in.
Segement is uploaded and pending processing
Map successfully created. Added to global map with high accuracy.
Map successfully created. Added to global map with medium to low accuracy.
Segment has failed. A map may have been produced however it may be distorted and is not registered to the global map.
No usable frames detected. This occurs when : Camera not moving or Camera is looking at water
Segment removed from map.
View your map
Once Hivemapper transforms your video into a 3D map you can view your map.
- Go to your Dashboard.
- Select a video with some green in the progress bar.
- Click the View all maps from this video button.
You are now looking at all the maps generated from that particular video. The mapping engine splits most videos into multiple segments and you can view the individual segment map by selecting a segment and clicking View 3D Map.
Segments in blue are currently processing and segments in red have failed. Read more about video segments.
When viewing video segment maps you will see a notification that you are Viewing individual segment maps. By clicking View global 3D mapyou can switch to viewing all maps available for that specific location.
Not all videos are mapped accurately enough to register to the global map, yet these videos will still be available as single standalone maps.
Learn all about using our map to search, get coordinates, measure, and more.
Removing map segments
There are many reasons you might want to remove a successfully georegistered map from the global map including maps containing sensitive video content or in the rare case of a flawed map being incorrectly passed as accurate. To remove your video segment from the combined map click Remove segment from map button under the Actions drop down in the Dashboard.
It may take some time for the segment to be removed from the global map and when complete a new option to Add segment back to map will appear in the Actions drop down. The segment will still be available for viewing via the Actions drop down as a standalone segment map.
Video imagery will continue to be accessible from the combined map through other video segments remaining on the map from same video file.