MODIS Image Processing Stream

A MODIS Image Processing Stream

Inputs:

• MODIS mosaics (eg Arctic, Antarctic)



Data Flow?

• Image granules from Rapidfire

Products:

• Time lapse movies
• Custom images/mosaics
• Cloud cover masks
• Motion vectors

Components

• Data retriever, per collection (may require metadata collector)
• MetaDatabase & Metadata producer
• Cloud mask tool
• Movie composer
• Optical flow detector/filter

Currently:

• Data retriever is a batch file/php for the arctic mosaic, and Watchdog/WatchFTP for granules. Good enough for now, but we need to have a tool to decide if new data should be downloaded and how.
• Metadata producer/Database - nothing
• Cloudmask tool - I have an R script that will process arctic mosaic tiles and create a fair result.  For granules, the MOD35-L2 product is available.
• Movie composer, can be done with batch scripts with varying levels of sophistication using Imagemagick, Mapserver, gdal, and ffmpeg (also sed).  It would be useful to have a web front end for specifying and managing requests and products.
• Optical flow detector/filter - combination of OpenCV and R at this point, could be batched but needs work.