Real-Time Wide-Angle Video Communication System

A method includes maintaining a phase-out list that includes tiles of a current viewport of a wide-angle image that are predicted to no longer be in the viewport after a time duration d from a current time t. Tiles predicted to be viewed at a time that is later than the current time t are obtained. Those of the predicted tiles that are not in a receiver list are added to the receiver list. Tiles that form a current viewing area are rendered using the receiver list. Tiles of the receiver list and a phase-out list are associated with respective display times. Rendering the tiles includes decoding and displaying tiles of the receiver list having display times that are not larger than the current time t and stopping decoding and displaying tiles of the phase-out list associated with the display times that are not larger than the current time t.