The TIO service combine correlation maps from the MicMac software and perform a time serie analysis using the methods described in Bontemps & al[1].
[1] Noélie Bontemps and Pascal Lacroix and Marie-Pierre Doin (2017) "Inversion of deformation fields time-series from optical images, and application to the long term kinematics of slow-moving landslides in Peru" Remote Sensing of Environment