Reduced bit rate immersive video

Patent metadata

Field	Value
Publication number	US-2016277772-A1
Application number	US-201414413336-A
Country	US
Kind code	A1
Filing date	Sep 30, 2014
Priority date	Sep 30, 2014
Publication date	Sep 22, 2016
Grant date	—

Abstract

A user terminal arranged to: select a subset of video segments each relating to a different area of a field of view; retrieve the selected video segments; knit the selected segments together to form a knitted video image that is larger than a single video segment; and output the knitted video image.

First claim

1 . A user terminal arranged to:
Select, from a plurality of video segments, a subset of video segments each relating to a different area of a field of view; retrieve the selected video segments; knit the selected segments together to form a knitted video image that is larger than a single video segment; and output the knitted video image.

2 . The user terminal of claim 1 , wherein the plurality of video segments relating to the total available field of view are encoded at different quality levels, and the user terminal further selects a quality level of each selected video segment that is retrieved.

3 . The user terminal of claim 1 , wherein the selection of a subset of video segments is defined by a physical location and/or orientation of the user terminal.

4 . The user terminal of claim 1 , wherein the selection of a subset of video pixels is defined by user input to a controller connected to the user terminal.

5 . The user terminal of claim 1 , wherein the user terminal comprises at least one of a smart phone, tablet, television, set top box, or games console.

6 . The user terminal of claim 1 , wherein the user terminal is arranged to display a portion of a large video image.

7 . An apparatus arranged to display a portion of a large video image, the apparatus comprising:
a processor; and a memory, said memory containing instructions executable by said processor whereby said apparatus is operative to: select a subset of video segments each relating to a different area of a field of view; retrieve the selected video segments; knit the selected segments together to form a knitted video image that is larger than a single video segment; and output the knitted video image.

8 . A video processing apparatus arranged to:
receive a video stream; slice the video stream into a plurality of video segments, each video segment relating to a different area of a field of view of the received video stream; and encode each video segment.

9 . The video processing apparatus of claim 8 , wherein the video processing apparatus has a record of the popularity of each video segment.

10 . The video processing apparatus of claim 9 , wherein the video processing apparatus applies more compression effort to the video segments having the highest popularity.

11 . The video processing apparatus of claim 8 , wherein the video stream is sliced into a plurality of video segments dependent upon the content of the video stream.

12 . The video processing apparatus of claim 11 , wherein the video processing apparatus has a record of the popularity of each video segment, and whereby popular video segments relating to adjacent fields of view are combined into a single larger video segment.

13 . The video processing apparatus of claim 8 , wherein each video segment is assigned a commercial weighting, and effort higher compression level is applied to the video segments having the highest commercial weighting.

14 . A transmission apparatus arranged to:
receive a selection of video segments from a user terminal, the selected video segments suitable for being knitted together to create an image that is larger than a single video segment; transmit the selected video segments to the user device.

15 . The transmission apparatus of claim 14 further arranged to record which video segments are requested.

Assignees

• Ericsson Telefon Ab L M

Inventors

• Campbell Alistair
• Torruella Pedro

Classifications

• H04N21/47

  End-user applications · CPC title

• H04N21/21805 Primary

  enabling multiple viewpoints, e.g. using a plurality of cameras · CPC title

• H04N21/234381

  by altering the temporal resolution, e.g. decreasing the frame rate by frame skipping · CPC title

• G06T19/006

  Mixed reality (object pose determination, tracking or camera calibration for mixed reality G06T7/00) · CPC title

• H04N21/6587

  Control parameters, e.g. trick play commands, viewpoint selection · CPC title