Visual Field Synchronization in Shared HMD Content Viewing

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Solution Overview

Problem

In scenarios where multiple users wear head-mounted displays (HMDs) to view the same content, such as spherical images, there is a challenge in ensuring that the visual fields of all users coincide, leading to difficulties in communication and shared experience.

Innovation Solution

An information processing apparatus and method that acquires data of content, cuts out a visual field image corresponding to a user's field of view, and displays this along with visual field information of other users, allowing for synchronized viewing experiences.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If each user views content through their own HMD with independent visual fields, then each user can view arbitrary ranges in the content image, but the visual fields of different users do not coincide, leading to communication difficulties

Engineering Contradiction:
Improvevisual field independenceVSAvoidshared visual context
Core Design Contradiction:
Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent creates a copy of the first user's visual field image and displays it in the second user's HMD. The image cutting unit generates a visual field image based on the first user's visual field information, and this copied image is then displayed to the second user, allowing them to see what the first user is viewing despite having different head positions and orientations.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent introduces visual field information as an intermediary element that mediates between multiple users. The visual field information acquisition unit collects data about other users' visual fields, and this information serves as a bridge to synchronize what different users see, enabling them to share a common visual context for better communication.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of information

If the system displays visual field information of multiple users, then communication among users is improved, but the device complexity increases due to multiple image processing and display control operations

Engineering Contradiction:
Improveshared visual contextVSAvoidimage processing complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent segments the visual field management into distinct functional units: an image cutting unit that processes individual visual field images, a visual field information acquisition unit that collects data from multiple users, and a display control unit that manages what each user sees. This segmentation allows the system to handle multiple users' visual fields separately and efficiently without overwhelming complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent creates a universal image cutting unit that can generate visual field images for any user based on their visual field information, regardless of which user it is. This multi-functional unit handles all users' visual field processing in the same way, reducing the need for separate processing paths for each user and simplifying the overall system architecture.

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

Data Source

PatentUS12299790B2Information processing apparatus and information processing method
Publication Date: 2025.05.13 SONY GROUP CORP
  • US12299790B2 patent drawing
  • US12299790B2 patent drawing
  • US12299790B2 patent drawing

AI summary

Provided is an information processing apparatus, and an information processing method in which data of content is acquired, and a first visual field image corresponding to a visual field of a first user is cut out from a content image based on the data of the content. In addition, visual field information representing a visual field of a second user viewing the content image is acquired. Furthermore, in a display apparatus, the first visual field image is displayed, and the visual field of the second user is displayed based on the visual field information of the second user.