Immersive teleconferencing and telepresence
Embodiments may relate to a user equipment (UE) that is configured to determine a real-time transport protocol (RTP) media flow that includes visual data related to a plurality of images concurrently taken of a location and a supplemental information enhancement (SEI) message that is to be used to display at least a portion of the visual data. The UE is further configured to visually display, based on the visual data and the SEI message, the portion of the visual data to a user of the user device. Other embodiments may be described or claimed.
1 . A method comprising:
receiving real-time transport protocol (RTP) stream that includes visual data and corresponding metadata comprising one or more omnidirectional video specific supplemental enhancement information (SEI) messages;
processing the RTP stream to generate an elementary stream;
decoding the elementary stream using a high-efficiency video coding (HEVC) decoder to obtain decoded visual data and decoder metadata comprising the one or more SEI messages;
generating, based at least in part on the decoded visual data and the decoder metadata, a 360 degree video; and
generating a viewport from the 360 degree video based at least on position information from one or more sensors.
2 . The method of claim 1 , wherein the RTP stream was generated using a plurality of two-dimensional images for a video conference.
3 . The method of claim 2 , comprising sending, by a device and to a system that generates the RTP stream, one or more two-dimensional images captured by a camera connected to the device, wherein the one or more two-dimensional images are included in the plurality of images for the video conference.
4 . The method of claim 2 , wherein at least some of the plurality of images were captured by an omnidirectional camera for the video conference.
5 . The method of claim 1 , wherein the 360 degree video is generated based on a texture-to-sphere mapping function in conjunction with the decoded visual data and wherein the 360 degree video is mapped to a visual field that comprises the viewport.
6 . The method of claim 1 , further comprising generating the viewport from the 360 degree video based on display characteristics of a display device that will output the 360 degree video.
7 . The method of claim 1 , wherein obtaining the decoded visual data and the decoder metadata comprises obtaining, by one or more baseband processors, the decoded visual data and the decoder metadata.
8 . The method of claim 1 , comprising transmitting, in a RTP control protocol (RTCP) feedback message, an indication of a desired field of view of the visual data, wherein obtaining the decoded visual data comprises obtaining the decoded visual data that is based at least on the desired field of view.
9 . The method of claim 1 , wherein:
the RTP stream is a first RTP stream that includes first visual data related to a first image of a plurality of images; and
obtaining the decoded visual data and the decoder metadata comprises obtaining the decoded visual data and the decoder metadata based on a) the first RTP stream and b) a second RTP stream that includes second visual data related to a second image of the plurality of images.
10 . The method of claim 1 , wherein generating the 360 degree video comprises:
obtaining texture data from the elementary stream using the HEVC decoder; and
generating the 360 degree video, using a texture-to-sphere mapping function, based on the texture data and the decoder metadata.
11 . An apparatus comprising one or more processors configured to perform operations comprising:
receiving real-time transport protocol (RTP) stream that includes visual data and corresponding metadata comprising one or more omnidirectional video specific supplemental enhancement information (SEI) messages;
processing the RTP stream to generate an elementary stream;
decoding the elementary stream using a high-efficiency video coding (HEVC) decoder to obtain decoded visual data and decoder metadata comprising the one or more SEI messages;
generating, based at least in part on the decoded visual data and the decoder metadata, a 360 degree video; and
generating a viewport corresponding to a 360 degree video based at least on position information from one or more sensors.
12 . The apparatus of claim 11 , wherein the one or more processors comprise one or more baseband processors.
13 . The apparatus of claim 11 , wherein the RTP stream was generated using a plurality of two-dimensional images for a video conference, the operations comprising sending, to a system that generates the RTP stream, one or more two-dimensional images captured by a camera connected to the apparatus, wherein the one or more two-dimensional images are included in the plurality of images for the video conference.
14 . The apparatus of claim 13 , wherein at least some of the plurality of images were captured by an omnidirectional camera for the video conference.
15 . The apparatus of claim 11 , the operations comprising generating, based at least on a texture-to-sphere mapping function and the decoded visual data, the 360 degree video, wherein at least some of the 360 degree video is mapped to a visual field that comprises the viewport.
16 . The apparatus of claim 11 , wherein the operations further comprise generating the viewport from the 360 degree video based on display characteristics of a display device that will output the 360 degree video.
17 . The apparatus of claim 11 , comprising transmitting, in a RTP control protocol (RTCP) feedback message, an indication of a desired field of view of the visual data, wherein obtaining the decoded visual data comprises obtaining the decoded visual data that is based at least on the desired field of view.
18 . The apparatus of claim 11 , wherein:
the RTP stream is a first RTP stream that includes first visual data related to a first image of a plurality of images; and
obtaining the decoded visual data and the decoder metadata comprises obtaining the decoded visual data and the decoder metadata based on a) the first RTP stream and b) a second RTP stream that includes second visual data related to a second image of the plurality of images.
19 . One or more non-transitory machine-readable media storing instructions that, when executed, are configured to cause one or more processors to perform operations comprising:
receiving real-time transport protocol (RTP) stream that includes visual data and corresponding metadata comprising one or more omnidirectional video specific supplemental enhancement information (SEI) messages;
processing the RTP stream to generate an elementary stream;
decoding the elementary stream using a high-efficiency video coding (HEVC) decoder to obtain decoded visual data and decoder metadata comprising the one or more SEI messages;
generating, based at least in part on the decoded visual data and the decoder metadata, a 360 degree video; and
generating a viewport from the 360 degree video based at least on position information from one or more sensors.