Methods and apparatus to reduce latency for 360-degree viewport adaptive streaming
US-2019230142-A1 · Jul 25, 2019 · US
Methods and devices for handling media data streams
US12284404B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12284404-B2 |
| Application number | US-201917633609-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 19, 2019 |
| Priority date | Aug 19, 2019 |
| Publication date | Apr 22, 2025 |
| Grant date | Apr 22, 2025 |
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Abstract
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The embodiments herein relate to a method performed by a server device for handling media data streams. The sever device obtains multiple streams of source media data of varying resolution each having multiple source frames. Each source frame is divided into a plurality of tiles. The server device selects a subset of tiles from least one of the streams of source media data. The selected subset of tiles is comprised in an output frame. The server device determines layout information for the selected subset of tiles in the output frame. The layout information comprises scale, source tile index and output tile index.
First claim
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The invention claimed is: 1. A method performed by a server device for handling media data streams, the method comprising: obtaining multiple streams of source media data of varying resolution each having multiple source frames, wherein each source frame is divided into a plurality of tiles; selecting a subset of tiles from at least two of the multiple streams of source media data, wherein the selected subset of tiles is comprised in an output frame, wherein the selected subset of tiles varies in scale and resolution, wherein selecting the subset of tiles is based on user gaze information and allocated bandwidth; and determining layout information for the selected subset of tiles in the output frame, wherein the layout information comprises scale, source tile index and output tile index. 2. The method according to claim 1 , comprising: generating dynamic mesh data based on the layout information and for the selected subset of tiles in the output frame; and providing the dynamic mesh data to a client device. 3. The method according to claim 1 , comprising: providing the layout information to a client device. 4. The method according to claim 2 , wherein the dynamic mesh data comprises a list of spatial coordinates, texture coordinates and quad indices mesh data for the selected subset of tiles in the output frame. 5. The method according to claim 2 , wherein the generation of the dynamic mesh data is based on quads and metaquads. 6. A server device for handling media data streams, the server device being adapted to perform operations comprising: obtaining multiple streams of source media data of varying resolution each having multiple source frames, wherein each source frame is divided into a plurality of tiles; selecting a subset of tiles from at least two of the multiple streams of source media data, wherein the selected subset of tiles is comprised in an output frame, wherein the selected subset of tiles varies in scale and resolution, wherein selecting the subset of tiles is based on user gaze information and allocated bandwidth; and determining layout information for the selected subset of tiles in the output frame, wherein the layout information comprises scale, source tile index and output tile index. 7. A computer program comprising a non-transitory computer readable medium storing instructions which, when executed on at least one processor, cause the at least one processor to carry out the method according to claim 1 .
Assignees
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Classifications
involving a specific file format, e.g. MP4 format · CPC title
specially adapted for multi-view video sequence encoding · CPC title
Position within a video image, e.g. region of interest [ROI] · CPC title
Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities · CPC title
by altering the spatial resolution, e.g. for clients with a lower screen resolution · CPC title
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- What does patent US12284404B2 cover?
- The embodiments herein relate to a method performed by a server device for handling media data streams. The sever device obtains multiple streams of source media data of varying resolution each having multiple source frames. Each source frame is divided into a plurality of tiles. The server device selects a subset of tiles from least one of the streams of source media data. The selected subset …
- Who is the assignee on this patent?
- Ericsson Telefon Ab L M
- What technology area does this patent fall under?
- Primary CPC classification H04N21/234327. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 22 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).