JOSM/Plugins/VideoMapping/Concept

basing on the design and the experiences collected with a seperated video player and first videos we got the following user centered concept:

goals

The user should be able to extract the objects within the video to add them in the JOSM Editor. Cause videos are fast, long and have a high object density it is nescessary to:

• have max control of the video playback
• not to leave the editor
• have short mouse ways

conclusion

• mostly keyboard shortcuts for playback control, no conflicts with persisting shortcuts
• seamless integration of a min video player

workflow

The user will follow this procedure:

• start JOSM
• add a GPS track
• add video to this track
• add multiple sync points per video
  • control video position and GPS position completely independent
  • remove previous ones
• add more videos
• navigate thorough the video using shortcuts or UI elements
  • start/pause playback
  • slider for playback speed rate
  • jump x ms forward/backward
  • jump y s by clicking on the timeslider
  • loop z ms around current time
• add visible objects in JOSM

options

The user has to be able to set this options:

• speed rate (directly in playback window)
• jump length (main menu)
• loop length (main menu)
• Center GPS Position? (main menu)
• Manage sync points (main menu)
• remove video (main menu)
• set shortcuts
• set deinterlacer
• set coloring/representation

user interface

• video menu entry (activated on GPS layers) to add a video and with options in submenu
• Layer context menu
• video sync form
  • add, delete sync point
  • show all sync points
• video player form (JOSMDialog recommend)
  • speed slider(snaping 1x position)
  • time
• shortcuts (similar to VLC):
  • arrow keys: left/right jumps
  • +/- key speedcontrol
• Camera position shown on Layer

extensions

The plugin design has to be flexible enough to deal with the following extensions:

• intelligent autosync
• multiple videos
• no GPS track necessary: well mapped areas are good enough for georeference
• photo snapshots: georeferenced photos are good for official review
• zooming mode: for single screen devices
• mousewheel as joggdial: speed or per frame control
• autosnapshot (e.g. for housenumbers) to save diskspace for proof of authentication