Geocoding Images and Video
From Hurricane Info Wiki
Ideally, every camera and camcorder should have a built in GPS receiver, or the ability to connect to one via USB, bluetooth, or RS-232, and store time and position data in the image headers. This is something to look for when buying a camera.
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Post merging
If you set your camera's time accurately using the time displayed by your GPS receiver and check it for drift, and set your GPS receiver to record your track while you are using the camera, you can automatically merge this data later using Photo geocoding software. You may need to use GPSBabel to convert the files from your GPS unit into a form that the software will recognize. There are even small displayless GPS loggers sold with software for this purpose, though you are better off with a full function GPS recorder. You can also take pictures of your GPS screen and manually enter the data later.
GPS timecode generators
This author is not aware of any GPS based timecode generators, at this time, that encode the latitude and longitude into the user bits of GPS timecode, but they may exist. A PDA with GPS could be programmed to produce an audio output with GPS position in an SMTPE timecode or other format. If you use a separate NTSC camera and recorder, there are devices that can insert GPS information as closed captions.
Postprocessing can be used with a stored GPS track and accurate timecode.
Inserting latitude/longitude into image headers
Exiftool (cross platform) can insert headers into images and read the headers that are already there.
Preserving Image Headers
Image processing software often fails to preserve the image headers in the original image. To get around this, exiftool can be used to dump headers to a file and then that file can be merged back into the processed image.
Streaming video
Geocoding can be inserted as a closed captioning channel. GPSBabel could be modified to produce subtitle file formats used by common subtitling/captioning software.
