Hey Drewp there is a program called TradeGuider that analyzes bar scenarios like this - - it is about $3500 US - - if you analyze the aggregate fx volume from a source like GTIS (esignal subscription has it) and then look for high volume on a narrow range bar, you should be able to classify by looking at the volume and the next candle successfully (according to the tradeguider guys). There are a few videos about the aggregate volume via GTIS on leveragefx dot com (the Top Gun guys)...
Hope that helps, turbothis