Stereoscopic Display Rotation With Dynamic Background Alignment

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Solution Overview

Problem

Conventional stereoscopic video display devices fail to maintain a consistent background image as the observer moves around the device, leading to a distorted viewing experience.

Innovation Solution

A stereoscopic video display device that includes an image display unit, observer position detection, a rendering unit to form a virtual object image, a rotation unit to face the observer, a background image obtainment unit, and an image composition processing unit to superimpose the virtual object on the background image, ensuring a consistent composite image display.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the screen rotates according to observer position and video is changed according to observer position, then the observer can see stereoscopic video over a range of 360 degrees, but the background image is not changed so the video does not look right to the observer

Engineering Contradiction:
Improveviewing angleVSAvoidimage consistency
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies dynamics by making the background image change dynamically according to the observer's position. The background image is rotated and reselected based on the detected observer position, just like the video content. This dynamic adjustment ensures that both the video and background image are consistent with each other from the observer's perspective, resolving the contradiction between wide viewing angle and image consistency.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements feedback by using the observer position detection unit to continuously monitor the observer's location and feed this information back to the video selection unit and background image selection unit. This feedback mechanism ensures that both the video and background image are adjusted according to the actual observer position, maintaining image consistency while preserving 360-degree viewing capability.

Inventive Principle:
Principle #23Feedback

2Manufacturing precision

If the video is changed according to observer position, then the stereoscopic video can be displayed accurately, but the background image remains static causing distortion

Engineering Contradiction:
Improvevideo accuracyVSAvoidbackground consistency
Core Design Contradiction:
Manufacturing precisionVSStability of the object's composition

Solution Approach 1:

The patent applies dynamics by transitioning from a static background image to a dynamic background image that changes according to observer position. The background image selection unit selects different background images based on the detected observer position, ensuring that the background remains consistent with the video content and the observer's viewpoint, thus resolving the contradiction between video accuracy and background consistency.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies parameter changes by adjusting the background image parameters (selection, rotation, positioning) based on the observer position parameters. The background image is rotated and reselected according to the same position detection that controls video selection, ensuring coordinated changes that maintain overall image consistency while preserving video accuracy.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12513279B2Stereoscopic video display device, stereoscopic video display method, and computer-readable storage medium
Publication Date: 2025.12.30 JVC KENWOOD CORP
  • US12513279B2 patent drawing
  • US12513279B2 patent drawing
  • US12513279B2 patent drawing

AI summary

A stereoscopic video display device includes: an image display unit configured to display an image; an observer position detection unit configured to detect a position of a nearby observer; a rendering unit configured to form an image of a virtual object corresponding to the position of the observer detected by the observer position detection unit; a rotation unit configured to rotate the image display unit to a position facing the observer detected by the observer position detection unit; a background image obtainment unit configured to obtain an image of a background behind the image display unit; and an image composition processing unit configured to generate a composite image in which the image of the virtual object formed by the rendering unit is superimposed on the image of the background obtained by the background image obtainment unit, and display the composite image on the image display unit.