Method and apparatus for signaling region of interests

Patent metadata

Field	Value
Publication number	US-2017345205-A1
Application number	US-201715600256-A
Country	US
Kind code	A1
Filing date	May 19, 2017
Priority date	May 26, 2016
Publication date	Nov 30, 2017
Grant date	—

Abstract

Aspects of the disclosure provide an apparatus that includes an interface circuit, an image generating circuit and a display device. The interface circuit is configured to receive media data with timed directorial information indicative of a region of interests at a time. The image generating circuit is configured to extract the timed directorial information, and generate one or more images of the region of interests based on the media data and the timed directorial information. The display device is configured to display the one or more images at the time.

First claim

What is claimed is:

1 . An apparatus, comprising:
an interface circuit configured to receive media data with timed directorial information indicative of a region of interests at a time; an image generating circuit configured to extract the timed directorial information, and generate one or more images of the region of interests based on the media data and the timed directorial information; and a display device configured to display the one or more images at the time.

2 . The apparatus of claim 1 , wherein the timed directorial information is indicative of at least one of:
a projection of the region of interests on a rectangular plane; a region on a surface of a sphere; a camera identification; a track identification; and a face identification.

3 . The apparatus of claim 1 , wherein the timed directorial information includes a viewpoint to indicate the region of interests.

4 . The apparatus of claim 3 , wherein the timed directorial information is indicative of a horizontal coverage range and a vertical coverage range about the viewpoint.

5 . The apparatus of claim 4 , wherein the timed directorial information is indicative of boundaries that are formed by great circles.

6 . The apparatus of claim 4 , wherein the timed directorial information is indicative of boundaries that are formed by yaw circles and pitch circles.

7 . A method for image rendering, comprising:
receiving media data with timed directorial information that is indicative of a region of interests at a time; extracting the timed directorial information from the media data; generating one or more images of the region of interests based on the media data and the timed directorial information; and displaying the one or more images at the time.

8 . The method of claim 7 , wherein receiving the media data with the timed directorial information that is indicative of the region of interests at the time comprises at least one of:
receiving the timed directorial information that is indicative of a projection of the region of interests on a rectangular plane; receiving the timed directorial information that is indicative of a region on a surface of a sphere; receiving the timed directorial information that is indicative of a camera identification; receiving the timed directorial information that is indicative of a track identification; and receiving the timed directorial information that is indicative of a face identification.

9 . The method of claim 7 , wherein receiving the media data with the timed directorial information that is indicative of the region of interests at the time further comprises:
receiving the timed directorial information that includes a viewpoint to indicate the region of interests.

10 . The method of claim 9 , further comprising:
receiving the timed directorial information that is indicative of a horizontal coverage range and a vertical coverage range about the viewpoint.

11 . The method of claim 10 , further comprising:
receiving the timed directorial information that is indicative of boundaries that are formed by great circles.

12 . The method of claim 10 , further comprising:
receiving the timed directorial information is indicative of boundaries that are formed by yaw circles and pitch circles.

13 . An apparatus, comprising:
a memory configured to buffer captured media data; and an image generating circuit configured to determine a region of interests at a time, and encapsulate timed directorial information that is indicative of the region of interests at the time with the media data.

14 . The apparatus of claim 13 , wherein the timed directorial information is indicative of at least one of:
a projection of the region of interests on a rectangular plane; a region on a surface of a sphere; a camera identification; a track identification; and a face identification.

15 . The apparatus of claim 13 , wherein the timed directorial information includes a viewpoint to indicate the region of interests.

16 . The apparatus of claim 15 , wherein the timed directorial information is indicative of a horizontal coverage range and a vertical coverage range about the viewpoint.

17 . The apparatus of claim 16 , wherein the timed directorial information is indicative of boundaries that are formed by great circles.

18 . The apparatus of claim 16 , wherein the timed directorial information is indicative of boundaries that are formed by yaw circles and pitch circles.

19 . A method for image rendering, comprising:
receiving captured media data; determining a region of interests at a time; and encapsulating timed directorial information that is indicative of the region of interests at the time with the media data.

Assignees

• Mediatek Inc

Inventors

• Lai Wang Lin
• Liu Shan

Classifications

• H04N21/4728

  for selecting a Region Of Interest [ROI], e.g. for requesting a higher resolution version of a selected region · CPC title

• H04N21/21805

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

• G06T15/205 Primary

  Image-based rendering · CPC title

• H04N21/816

  involving special video data, e.g 3D video · CPC title

• H04N13/383

  for tracking with gaze detection, i.e. detecting the lines of sight of the viewer's eyes · CPC title