Videospatial Services

Introduction to CSA’s Videospatial Services

Full-Motion Video

CSA now provides end-to-end support for the creation and utilization of Full Motion Video (FMV). Originating with defense industry applications, CSA has recently developed proprietary software that puts the application of FMV technology in the hands of our clients.

FMV has many forms and uses. For CSA’s applications in the marine environment, FMV is defined as digital video with geospatial information integrated into the digital file. This digital fusion allows the video to be associated with other geospatially defined attributes in space and time, such as bathymetry, living resources, and infrastructure. Unlike older technologies where static time and latitude and longitude were “burned” into the digital image, the spatial and temporal information associated with FMV can be accessed by geographic information systems (GIS). The result is a powerful tool for capturing geospatially articulated information from within the video image and rendering that information into a GIS for further analysis.

The video to the above shows an example of FMV-compliant imagery collected from an aerial platform and analyzed using ESRI’s ArcMap software and Full Motion Video add-in. It illustrates how the user can extract geospatial information from the video by digitizing points, lines, or polygons directly on the imagery. In this example, beachgoers on Jupiter Island, Florida, are digitized as points, which are then saved as a shapefile.

The same process of video and navigation synchronization can be conducted using aerial and underwater telemetry systems on any combination of vehicles, vessels, or divers (carrying a camera). With Esri’s Full Motion Video add-in, FMV processing can utilize both live and stored video streams. For more complicated geometries, FMV video analysis allows distances and angle from the line transect to be calculated. CSA’s post-processing capability includes embedding the projected field of view into the database for every frame in the video, allowing the user to understand the scale of the video image.

Full Motion Video also facilitates frame-grabbing, which makes it possible to create mosaics that can be used for various analyses. Playback of time-stamped video data can be synchronized with other time-enabled data for synchronous display in a map. Features can be digitized directly on the video player and will appear on the map in their georeferenced location. The “Intersect” function also enables point, line, and polygon features on the map that fall within the video footprint to be displayed on the video. These capabilities enable video imagery collected by at-sea observers to be processed, analyzed, and stored within the geospatial framework of the project and to be integrated into GIS maps and CSA’s online GeoPortals.

Summary of Full Motion Video Features

  • FMV produces integrated temporal and spatial information in the digital signal
    • Accessible and viewable in a GIS
    • Features observed in the video can be digitized and automatically embedded in the GIS
    • Video frames can be isolated and mosaicked
    • Field of view calculations can be computed on the fly and saved in the database
    • FMV data can be synchronized with other time-enabled data for synchronous display in a map
  • Data security – By unifying the digital video and navigation data, images cannot be geographically “orphaned”
  • Historical, real-time, and GeoPortal-based access options

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