Multi-view Display Format Adaptation via Metadata Extraction

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Solution Overview

Problem

Existing 3D display systems fail to properly render images that have not been encoded for 3D mode, resulting in distorted views when images intended for 2D or other formats are displayed, as they lack the necessary adaptation mechanisms to convert incompatible source video formats into compatible display formats.

Innovation Solution

A multi-view display system that automatically determines the display video format by extracting a video format code from a coded bitstream and using video format filters to modify images, ensuring they are rendered correctly on the display panel, regardless of their original format, by embedding the video format code in metadata channels and applying filters to re-order, remove, or combine pixels as needed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a 3D display system displays images not encoded for 3D mode, then the display can show any video content, but the image becomes distorted and improper rendering occurs

Engineering Contradiction:
Improvecompatibility with different video formatsVSAvoidrendering accuracy
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The system performs preliminary detection of the video format code from metadata channels before rendering, and pre-configures the appropriate rendering mode (2D or 3D) in advance. This allows the display system to properly adapt images regardless of their original encoding format, preventing distortion while maintaining versatility across different video formats.

Inventive Principle:
Principle #10Preliminary action

2Manufacturing precision

If the display system requires images encoded for a specific 3D technique, then proper 3D rendering is achieved, but the system cannot display images in other formats without distortion

Engineering Contradiction:
Improverendering accuracyVSAvoidcompatibility with different video formats
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The system changes rendering parameters dynamically based on the detected video format code. By extracting format information from metadata channels and adjusting rendering modes accordingly, the system maintains high rendering accuracy for 3D content while also achieving compatibility with 2D and other video formats through parameter adaptation.

Inventive Principle:
Principle #35Parameter changes

3Device complexity

If no format detection mechanism is implemented, then the display system remains simple, but it cannot properly adapt images to the correct display format

Engineering Contradiction:
Improvesystem simplicityVSAvoidformat adaptation capability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The system introduces metadata channels as an intermediary that carry video format code information. This mediator enables the display system to automatically detect and adapt to different video formats without requiring complex manual configuration, achieving format versatility through a relatively simple metadata extraction and interpretation mechanism.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS8743178B2Multi-view video format control
Publication Date: 2014.06.03 DOLBY LABORATORIES LICENSING CORP
  • US8743178B2 patent drawing
  • US8743178B2 patent drawing
  • US8743178B2 patent drawing

AI summary

Techniques for multi-view video format control are provided. In some embodiments, a display video format supported by a display panel is determined. A video format code is extracted from a coded bitstream in which a plurality of images is encoded in two or more source video formats. The video format code identifies a source video format in which a set of images in the plurality of images is encoded. A video format filter is selected to modify the set of images encoded in the source video format to generate another set of images encoded in the display video format. The other set of images encoded in the display video format is sent to the display panel.