Abstract: A computer-implemented method is disclosed for requesting tile streams for rendering a spatial part of an immersive video on a display of a client device. In this method, a server system stores a plurality of tile streams. Each tile stream represents a spatial part of the immersive video and each tile stream comprises a sequence of tile frames that are associated with respective times in the video. Further, the plurality of tile streams comprises a first set of high quality tile streams having a relatively high quality and comprises a second set of one or more low quality tile streams having a relatively low quality and/or a third set of one or more intermediate quality tile streams having a relatively intermediate quality. The method comprises based on a determined value for a parameter indicative of how many requested high quality tile frames are received not in time for properly rending them on the display, refraining, at least for some time period, from requesting high quality tile streams.

Abstract: A computer-implemented method is disclosed for requesting tile streams for rendering a spatial part of an immersive video on a display of a client device. In this method, a server system stores a plurality of tile streams. Each tile stream represents a spatial part of the immersive video and each tile stream comprises a sequence of tile frames that are associated with respective times in the video. Further, the plurality of tile streams comprises a first set of high quality tile streams having a relatively high quality and comprises a second set of one or more low quality tile streams having a relatively low quality and/or a third set of one or more intermediate quality tile streams having a relatively intermediate quality. The method comprises based on a determined value for a parameter indicative of how many requested high quality tile frames are received not in time for properly rending them on the display, refraining, at least for some time period, from requesting high quality tile streams.