HMD Virtual Object Rear View via Head Movement Control
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Solution Overview
Problem
Users wearing head-mounted displays (HMDs) face difficulties in visually recognizing the rear of virtual objects, especially when movement range is limited, hands and feet are not freely moved, or control requires changing the standing position.
Innovation Solution
An information processing device that selects a virtual object at the user's line-of-sight position as a control object and, upon a predetermined operation, moves and displays the object to allow visual recognition of its rear, with the direction and distance of movement determined by the user's head movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a user moves the virtual object using a hand gesture interface to visually recognize the rear of a virtual object, then the user can see the rear of the object, but the user's hands and feet must be freely movable and the movement range is limited
Solution Approach 1:
The patent replaces the mechanical hand gesture interface with a head movement-based control system. The HMD detects head movement direction and distance to automatically move the virtual object, eliminating the need for manual gestures and expanding operational versatility to users with limited body mobility.
Solution Approach 2:
The system uses the user's natural head movements (which occur anyway during normal viewing) to control virtual object positioning. The head-mounted display leverages the user's own physiological movements to perform the control function, making the interaction more intuitive and accessible.
2Ease of operation
If the user actually moves to a position where the rear of the virtual object is seen, then the user can visually recognize the rear of the object, but the control requires changing the standing position
Solution Approach 1:
The patent substitutes physical body movement with head movement detection. The HMD's sensors detect head movement direction and distance, automatically translating these subtle movements into virtual object repositioning, eliminating the need for users to change their standing position while maintaining full control capability.
3Ease of operation
If the virtual object is moved by hand gesture interface, then the user can control the object position, but the hands and feet are not freely moved
Solution Approach 1:
The system utilizes the user's natural head movements during normal viewing and interaction to control virtual object positioning. This self-service approach eliminates the need for separate manual control mechanisms, making the system accessible to users who cannot perform hand gestures or move their bodies freely.
Solution Approach 2:
The head movement control system serves multiple functions: it controls virtual object positioning, maintains natural viewing behavior, and provides accessibility for users with mobility limitations. This universal control method replaces the specialized hand gesture interface with a more broadly applicable mechanism.
Data Source
AI summary
An information processing device includes a processor; and a memory storing a program which causes the information processing device to: select a virtual object present at a line-of-sight position of a user as a control object; determine whether or not the user performed a predetermined operation for visually recognizing a rear of the control object; and execute control that the control object is moved and displayed such that the rear of the control object can be visually recognized, wherein a direction in which the control object is to be moved is determined based on at least either one of a moving direction and a rotating direction of a head part of the user, or a distance for which the control object is to be moved is determined based on at least either one of a movement amount and a rotation amount of the head part of the user.