Evaluating video visualizations of human behavior

Previously, we presented Viz-A-Vis, a VIsualiZation of Activity through computer VISion [17]. Viz-A-Vis visualizes behavior as aggregate motion over observation space. In this paper, we present two complementary user studies of Viz-A-Vis measuring its performance and discovery affordances. First, we present a controlled user study aimed at comparatively measuring behavioral analysis preference and performance for observation and search tasks. Second, we describe a study with architects measuring discovery affordances and potential impacts on their work practices. We conclude: 1) Viz-A-Vis significantly reduced search time; and 2) it increased the number and quality of insightful discoveries. Author Keywords Information Visualization, Video, Behavior, User Studies. ACM Classification Keywords H.5.2 [Information Interfaces and Presentation]: User Interfaces-Graphical user interfaces. Evaluation / Methods. General Terms: Human Factors.

• Type: Journal
• Year: 2011
• Where: CHI
• Authors: Mario Romero, Alice Vialard, John Peponis, John T. Stasko, Gregory D. Abowd
• Keywords: CHI 2011, Graphical User Interfaces, Human Computer Interaction, Information Interfaces, Information Visualization