| CPC H04N 19/119 (2014.11) [H04N 19/184 (2014.11); H04N 19/44 (2014.11); H04N 19/593 (2014.11)] | 16 Claims |
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1. A method of decoding a compressed wide-angle video including a wide-angle image, comprising:
maintaining, at a receiving device of the compressed wide-angle video, a phase-out list that includes tiles of a current viewport of the wide-angle image that are currently being displayed in the viewport but predicted to no longer be in the viewport after a time duration d from a current time t, wherein the compressed wide-angle device is received from a sending device via a network;
obtaining, by the receiving device, predicted tiles of the wide-angle image, wherein the predicted tiles are predicted to be viewed at a time that is later than the current time t;
updating, by the receiving device, a receiver list by adding to a receiver list those of the predicted tiles that are not in the receiver list; and
rendering, by the receiving device, tiles that form a current viewing area of the wide-angle image using the receiver list, wherein each tile of the receiver list and the phase-out list is associated with a respective display time, and wherein rendering the tiles comprises:
decoding and displaying tiles of the receiver list associated with display times that are not larger than the current time t;
stopping decoding and displaying tiles of the phase-out list associated with the display times that are not larger than the current time t; and
removing from the receiver list the tiles of the phase-out list having display times that are not larger than the current time t,
wherein the method further comprises transmitting the receiver list to an edge node of a network.
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