Multi-View Panoramic Media Encapsulation for Seamless View Switching

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Solution Overview

Problem

Existing video coded bitstream encapsulation methods for media files with panoramic pictures of multiple viewpoints result in poor switching effects when devices switch between these viewpoints.

Innovation Solution

A method and apparatus for encapsulating and de-encapsulating media files that involve adding switching information to panoramic pictures of multiple viewpoints, allowing seamless transitions between them.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing video coded bitstream encapsulation mode is used, then the media file can be stored and transmitted, but the switching effect between panoramic pictures of multiple viewpoints is poor

Engineering Contradiction:

Improveswitching effectVSAvoidencapsulation structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The panoramic pictures of multiple viewpoints are segmented into separate view entities, each with its own coded bitstream. This segmentation allows independent processing and switching between viewpoints while maintaining organized encapsulation through view entity groups, resolving the contradiction between reliable switching and structural complexity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Switching information is added in advance to each view entity during the encapsulation process, preparing the necessary data for future viewpoint switching operations. This preliminary action ensures smooth switching effects while maintaining a systematic encapsulation structure that doesn't overly complicate the file format

Inventive Principle:

Principle #10Preliminary action

2Reliability

If switching information is added to each panoramic picture, then the switching effect improves, but the data amount and processing complexity increase

Engineering Contradiction:

Improveswitching effectVSAvoiddata amount

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

Multiple view entities are grouped into view entity groups, and switching information is merged at the group level rather than duplicating it for each individual view. This combining approach maintains the improved switching effect while reducing the total data amount by eliminating redundancy

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The switching information structure is designed to serve multiple viewpoints simultaneously through the view entity group mechanism. A single switching information record can control transitions between multiple views, making the data structure multi-functional and reducing overall data requirements while maintaining reliable switching effects

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250379901A1Method, apparatus and device for encapsulating media file, and storage medium

Publication Date: 2025.12.11 TENCENT TECHNOLOGY (SHENZHEN) CO LTD

AI summary

A method for encapsulating a media file includes: acquiring coded bitstreams of panoramic pictures of N viewpoints, N being a positive integer greater than 1; and encapsulating the coded bitstreams in an entity group, and respectively adding, for at least one viewpoint in the N viewpoints, first information to a panoramic picture of the corresponding viewpoint, to obtain a media file of the panoramic pictures of the N viewpoints, the first information indicating switching information during switching from a panoramic picture of a current viewpoint to another panoramic picture of a next viewpoint.