Revision of LSCOM Event/Activity Annotations

To gather these video-based judgments, we designed a simple tool for providing binary positive/negative labels based on viewing a video clip of a subshot. The tool is web-based and can be used remotely with any modern web browser. It allows the user to work on only one subshot and concept at a time. The user can input the labels using a mouse or keyboard commands and is rapidly shown the next subshot to label as soon as a label is entered. A snapshot of the interface for the tool is shown in Figure 1.