Abstract
This paper introduces the Event Capture Annotation Tool (ECAT), a user-friendly, open-source interface tool for annotating events
and their participants in video, capable of extracting the 3D positions and orientations of objects in video captured by Microsoft’s
Kinectr hardware. The modeling language VoxML (Pustejovsky and Krishnaswamy, 2016) underlies ECAT’s object, program, and
attribute representations, although ECAT uses its own spec for explicit labeling of motion instances. The demonstration will show the
tool’s workflow and the options available for capturing event-participant relations and browsing visual data. Mapping ECAT’s output to
VoxML will also be addressed