AR Operation Determination Unit for Virtual Object Precision

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Solution Overview

Problem

Users face difficulties in precisely operating virtual objects in augmented reality environments due to the lack of haptic feedback, leading to instability and potential misoperation.

Innovation Solution

An information processing device and method that determines user operation inputs based on spatial position information of an operating body in a real three-dimensional space, switching determination processes to improve precision by considering motion and position information of both the operating body and virtual objects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a virtual object is operated using a part of the user's body such as a hand or finger, or an operating body like a stylus, then the user can interact with the virtual object, but the user will not receive haptic feedback resulting from the operation, making it difficult to finely designate the operation position and reducing operational stability

Engineering Contradiction:
Improvevirtual object operabilityVSAvoidoperational stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies feedback by detecting the operating body's position and motion in real three-dimensional space using sensors (e.g., cameras, depth sensors) and providing visual feedback through the HMD display. The system monitors the operating body's spatial coordinates, movement velocity, and acceleration to determine when and where the user intends to operate the virtual object, compensating for the lack of haptic feedback by enhancing visual information and operational precision.

Inventive Principle:
Principle #23Feedback

2Measurement precision

If the determination process uses spatial position information of the operating body in real three-dimensional space and switches based on operating body information, then measurement precision and operational accuracy improve, but device complexity increases due to multiple sensors and processing requirements

Engineering Contradiction:
Improveoperating body position detection accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements multi-functionality by using a single integrated information processing device that combines HMD display capabilities with multiple sensing functions (image capture, depth detection, motion tracking). The operating body detection unit serves multiple purposes: tracking hand position, determining operation intent, calculating motion parameters, and triggering appropriate determination processes, thereby reducing the need for separate dedicated components for each function.

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

Solution Approach 2:

The system employs self-service by utilizing the HMD's existing display and sensing capabilities to perform operating body detection and determination processes. The HMD's display screen serves both as the virtual object display medium and as the interface for providing visual feedback about operating body position. The sensing units already present in the HMD are leveraged for dual purposes: navigation and operation detection, eliminating the need for additional specialized hardware.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS10928919B2Information processing device and information processing method for virtual objects operability
Publication Date: 2021.02.23 SONY GROUP CORP
  • US10928919B2 patent drawing
  • US10928919B2 patent drawing
  • US10928919B2 patent drawing

AI summary

Provided is an information processing device including: an operation determination unit configured to execute a determination process of determining an operation input of a user with an operating body with respect to a virtual object that is defined in a virtual three-dimensional space and is virtually perceivable by the user. The operation determination unit executes the determination process on a basis of spatial position information of the operating body in a real three-dimensional space and switches the determination process on a basis of information of the operating body.