Abstract: Examples are disclosed that relate to a conversation runtime for automating transitions of conversational user interfaces. One example provides a computing system comprising a logic subsystem and a data-holding subsystem. The data-holding subsystem comprises instructions executable by the logic subsystem to execute a conversation runtime configured to receive one or more agent definitions for a conversation robot program, each agent definition defining a state machine including a plurality of states, detect a conversation trigger condition, select an agent definition for a conversation based on the conversation trigger condition, and execute a conversation dialog with a client computing system using the agent definition selected for the conversation and automatically transition the state machine between different states of the plurality of states during execution of the conversation dialog.

Abstract: The rotation of a user's head may be determined as a function of depth values from a depth image. In accordance with some embodiments, an area of pixels from a depth image containing a user's head is identified as a head region. The depth values for pixels in the head region are used to calculate a center of depth-mass for the user's head. The rotation of the user's head may be determined based on the center of depth-mass for the user's head.

Abstract: The rotation of a user's head may be determined as a function of depth values from a depth image. In accordance with some embodiments, an area of pixels from a depth image containing a user's head is identified as a head region. The depth values for pixels in the head region are used to calculate a center of depth-mass for the user's head. The rotation of the user's head may be determined based on the center of depth-mass for the user's head.