Viewpoint Switching Display Range Decision for HMD Visual Consistency

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Solution Overview

Problem

In display devices like HMDs that control image display ranges based on user line-of-sight direction and have viewpoint switching functions, users may experience a sense of incongruity due to inappropriate control of image display ranges after viewpoint switching.

Innovation Solution

An information processing apparatus that includes a display range decision unit, which, during viewpoint switching, decides the display range of the switching destination viewpoint image based on viewpoint position information, specific target information, and line-of-sight direction information to minimize user discomfort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If viewpoint switching is implemented in a display device that controls image display range according to line-of-sight direction, then the user can view the display target from multiple viewpoints, but the user may feel a sense of incongruity due to inappropriate control of image display range after viewpoint switching

Engineering Contradiction:
Improveviewpoint switching capabilityVSAvoidvisual consistency
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system pre-calculates and determines the appropriate display range for the switching destination viewpoint image before actually performing the viewpoint switch. By using viewpoint position information, specific target information, and line-of-sight direction information to decide the display range in advance, the system ensures that the visual transition is smooth and consistent, preventing the sense of incongruity that would otherwise occur during viewpoint switching.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If the display range is controlled to follow user line-of-sight direction, then the user experience is improved by displaying relevant content, but the display range after viewpoint switching becomes inappropriate causing visual incongruity

Engineering Contradiction:
Improveline-of-sight following display controlVSAvoiddisplay range accuracy
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The system uses line-of-sight direction information as feedback to adjust the display range control. When viewpoint switching occurs, the display range decision unit references the user's line-of-sight direction from the switching source viewpoint to determine the appropriate display range for the switching destination viewpoint, ensuring that the feedback loop maintains visual consistency across viewpoint transitions.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system changes the display range parameters based on the viewpoint position information and line-of-sight direction information. By dynamically adjusting these parameters when switching between viewpoints, the system maintains accurate display range control that adapts to both the new viewpoint position and the user's viewing direction, preventing visual incongruity.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12289434B2Information processing apparatus, display range decision method, and program for deciding a display range of a switching destination viewpoint image
Publication Date: 2025.04.29 SONY GROUP CORP
  • US12289434B2 patent drawing
  • US12289434B2 patent drawing
  • US12289434B2 patent drawing

AI summary

An information processing apparatus according to the present technology includes a display range decision unit configured, in switching a display image as to multiple-viewpoint images capable of displaying a display target from multiple viewpoints, from a switching source viewpoint image corresponding to a switching source viewpoint to a switching destination viewpoint image corresponding to a switching destination viewpoint, to decide a display range of the switching destination viewpoint image on the basis of viewpoint position information of the switching destination viewpoint, specific target information which is information regarding a specific target in the display target, and line-of-sight direction information of an estimated orientation of a line-of-sight of a user to the display image.