Anaglyph Video Generation via Dynamic Transform Matrices

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Solution Overview

Problem

There is a need to enable users to view stereo 3D video on computing devices using conventional technology, as existing stereo 3D video methods are costly and not compatible with all displays, while maintaining high color quality and avoiding issues like 'ghosting' and 'crosstalk' associated with anaglyph glasses.

Innovation Solution

A method where a computing device processes stereo 3D video data to generate anaglyph or monoscopic video, selecting the output format based on display capabilities and user input, using modified transform matrix coefficients tailored to specific video pipeline configurations, allowing conversion of stereo 3D video to anaglyph video using YUV color schemes with chroma subsampling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If shutter glasses are used for stereo 3D video, then color quality is improved, but cost and device compatibility worsen

Engineering Contradiction:
Improvecolor qualityVSAvoiddisplay compatibility
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The patent creates a software-based anaglyph rendering solution that copies the 3D viewing experience using conventional display technology. Instead of requiring specialized shutter glasses hardware, the system generates anaglyph video frames that can be displayed on any standard display device, effectively copying the depth perception function through a different technical approach.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The system changes the rendering parameters by switching from time-multiplexed stereo 3D rendering (requiring shutter glasses) to simultaneous anaglyph rendering with color-filtered layers. This parameter change in the video processing approach allows compatibility with conventional displays while maintaining 3D viewing capability.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If anaglyph video is used, then cost and compatibility are improved, but color quality and ghosting performance worsen

Engineering Contradiction:
Improvedisplay compatibilityVSAvoidcolor quality
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent applies local quality by using different color filtering approaches for different regions of the video signal. The system processes left and right eye views with specific color layer assignments (red-cyan or red-green) and applies chroma subsampling selectively to optimize both color quality and compatibility for anaglyph display.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system dynamically adjusts the anaglyph rendering parameters including color layer assignment and chroma subsampling based on the source video characteristics and display capabilities. This dynamic adaptation allows the system to optimize color quality while maintaining compatibility across different display devices.

Inventive Principle:
Principle #15Dynamics

3Reliability

If stereo 3D video is displayed, then depth perception is improved, but hardware cost and complexity worsen

Engineering Contradiction:
Improvedepth perceptionVSAvoidhardware requirements
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical/optical system of shutter glasses with a software-based image processing system. Instead of using synchronized mechanical shutters and specialized display hardware, the system uses software rendering to generate anaglyph frames that can be displayed on conventional displays, eliminating the need for expensive specialized hardware.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system achieves universality by creating a video processing solution that works with conventional display hardware while delivering 3D depth perception. The anaglyph rendering approach allows a single display device to serve both 2D and 3D viewing purposes without requiring specialized hardware configurations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS8860785B2Stereo 3D video support in computing devices
Publication Date: 2014.10.14 ZHIGU HLDG
  • US8860785B2 patent drawing
  • US8860785B2 patent drawing
  • US8860785B2 patent drawing

AI summary

Methods are disclosed for supporting stereo 3D video in computing devices. A computing device can receive stereo 3D video data employing a YUV color space and chroma subsampling, and can generate anaglyph video data therefrom. The anaglyph video data can be generated by unpacking the stereo 3D video data to left and right views and combining the left and right views into a single view via matrix transformation. The combining uses transform matrices that correspond to a video pipeline configuration. The transform matrix coefficients can depend on characteristics of the video pipeline components. Modified transform matrix coefficients can be used in response to changes in the video pipeline configuration. Video encoded in stereo 3D video data can be selected to be displayed in stereo 3D, anaglyph or monoscopic form, depending on user input and/or characteristics of video pipeline components.