Method and system for signaling of 360-degree video information

A signal notification, video technology, applied in the direction of digital video signal modification, 3D image processing, image communication, etc.

Pending Publication Date: 2019-04-16
VID SCALE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Encoder maps 360 video to 2D flat video using selected projection format

Method used

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  • Method and system for signaling of 360-degree video information
  • Method and system for signaling of 360-degree video information
  • Method and system for signaling of 360-degree video information

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Embodiment Construction

[0045] A detailed description of the illustrative embodiments will now be provided with reference to the accompanying drawings. Although this description provides specific examples of possible implementations, it should be noted that the details provided are intended as examples and not as limitations on the scope of application.

[0046] 360-degree video encoding and decoding

[0047] One technique for 360-degree video delivery is to use spherical geometry to represent 360-degree information. For example, synchronized multiple views captured by multiple cameras are stitched on the sphere as a whole structure. Then, project the sphere information onto a 2D planar surface using a given geometric transformation process, for example, the equirectangular projection (ERP) method. Figure 1A Spherical sampling over longitude (φ) and latitude (θ) is shown, Figure 1B The projection of a sphere to a 2D plane using equirectangular projection is shown. In aeronautics, longitude φ in ...

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Abstract

Coding techniques for 360-degree video are described. An encoder selects a projection format and maps the 360-degree video to a 2D planar video using the selected projection format. The encoder encodes the 2D planar video in a bitstream and further signals, in the bitstream, parameters identifying the projection format. The parameters identifying the projection format may be signaled in a video parameter set, sequence parameter set, and / or picture parameter set of the bitstream. Different projection formats that may be signaled include formats using geometries such as equirectangular, cubemap,equal-area, octahedron, icosahedron, cylinder, and user-specified polygon. Other parameters that may be signaled include different arrangements of geometric faces or different encoding quality for different faces. Corresponding decoders are also described. In some embodiments, projection parameters may further include relative geometry rotation parameters that define an orientation of the projection geometry.

Description

[0001] Cross References to Related Applications [0002] This application is based on U.S. Provisional Patent Application Serial No. 62 / 383,367, filed September 2, 2016, entitled "Method and System for Signaling 360-Degree Video Information," filed pursuant to 35 U.S.C. § 119(e) and The benefit of U.S. Provisional Patent Application Serial No. 62 / 407,337, entitled "Method and System for Signaling 360-Degree Video Information," filed October 12, 2016, the entire contents of which are incorporated herein by reference. Background technique [0003] Virtual reality (VR) is moving out of research labs and into our everyday lives. VR has many applications: healthcare, education, social networking, industry design / training, games, movies, shopping, entertainment, etc. It has received a lot of attention from the industry and consumers because of the immersive viewing experience that VR can bring. It creates a virtual environment that surrounds the viewer and may create a real feelin...

Claims

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Application Information

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IPC IPC(8): H04N19/597H04N19/46H04N19/167G06T15/04H04N19/117
CPCH04N19/597H04N19/85H04N19/167H04N19/503H04N19/70H04N19/184
Inventor 菲利普·汉哈特贺玉文叶艳
Owner VID SCALE INC
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