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A video processing method and device

A technology for video processing and video content, applied in image data processing, digital video signal modification, instrumentation, etc., to solve problems such as bottlenecks in VR content transmission

Active Publication Date: 2021-05-28
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As cameras and HMDs evolve, the delivery of VR content can quickly hit a bottleneck due to the high bitrates required to represent content such as 360-degree images / videos

Method used

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  • A video processing method and device
  • A video processing method and device
  • A video processing method and device

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Embodiment Construction

[0017] Certain terms referring to particular components are used throughout the ensuing description and claims. As those skilled in the art will recognize, electronic device manufacturers may refer to components by different names. This article does not intend to distinguish between components with different names but with the same function. In the ensuing description and claim claims, the terms "include" and "comprise" are used in an open-ended manner and should therefore be interpreted to mean "including but not limited to...". Also, the term "coupled" is used to mean an indirect or direct electrical connection. Thus, if a device couples to another device, that connection may be through a direct electrical connection or through an indirect electrical connection via other devices and connections.

[0018] figure 1 It is a schematic diagram showing a 360-degree virtual reality (360-degree Virtual Reality, 360VR) system according to an embodiment of the present invention. ...

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Abstract

The invention discloses a video processing method comprising: receiving an omnidirectional image / video content corresponding to a spherical field of view, generating a projection-based frame sequence according to the omnidirectional image / video content and a viewing angle-based cube projection layout, The projected sequence of frames is encoded to generate a bitstream. Each projection-based frame has 360-degree image / video content represented by rectangular projection surfaces packed in a view-based multiple cube projection layout. The plurality of rectangular projection surfaces include a first rectangular projection surface, a second rectangular projection surface, a third rectangular projection surface, a fourth rectangular projection surface, a fifth rectangular projection surface, and a sixth rectangular projection surface divided into a plurality of partial rectangular projection surfaces projection surface. The first rectangular projection surface corresponds to the viewing angle of the user, and is surrounded by a surrounding area formed by the second rectangular projection surface, the third rectangular projection surface, the fourth rectangular projection surface, the fifth rectangular projection surface and the plurality of partial rectangular projection surfaces surrounded.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to the following applications: U.S. Provisional Application No. 62 / 433,858 filed December 14, 2016, and U.S. Provisional Application No. 62 / 445,809 filed January 13, 2017. The subject matter of these applications are hereby incorporated by reference. technical field [0003] The present invention is concerned with processing omnidirectional image / video content. More specifically, the present invention relates to methods for generating and encoding projection-based frames having 360-degree content (e.g., 360-degree image content or 360-degree video content) represented by rectangular projection surfaces in a compact perspective-based cube projection layout methods and equipment. Background technique [0004] Virtual reality (VR) with a head-mounted display (HMD) is related to various applications. The ability to display content from a wide field of view to the user can be used to pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/218H04N21/234H04N21/414H04N21/81H04N19/597H04N13/161
CPCH04N21/21805H04N21/234H04N21/41407H04N21/816H04N13/161H04N19/597G06T19/00G06T3/08G02B27/017G06T9/00G06T15/205G06T19/006
Inventor 林鸿志李佳盈施乐李亚璇林建良张胜凯
Owner MEDIATEK INC