Mixed Reality Display Mode Transition for Smooth Virtual Occlusion
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Solution Overview
Problem
Existing display technologies in mixed reality systems experience user discomfort due to rapid changes in display modes when transitioning between areas with and without acquired spatial structure data, leading to abrupt shifts in the presentation of virtual objects relative to real objects.
Innovation Solution
A display control device that includes a mode detecting unit to identify the level of understanding of the spatial structure and a control unit to gradually transition the display mode of virtual objects from one mode to another through intermediate modes, ensuring a smooth change in display characteristics when spatial data becomes available.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the display mode of virtual objects is immediately changed when transitioning between areas with and without acquired spatial structure data, then the system responds quickly to spatial data availability, but the display mode changes rapidly causing user discomfort
Solution Approach 1:
The patent applies beforehand cushioning by introducing intermediate display modes that cushion the transition between display modes. When transitioning from a region without spatial data to one with spatial data, the system goes through intermediate modes (e.g., mode 3) that gradually adjust the display characteristics, preventing abrupt changes that would cause user discomfort. This cushioning mechanism softens the impact of mode transitions while maintaining responsiveness.
Solution Approach 2:
The patent uses intermediate display modes as mediators between the initial display mode (without occlusion) and the final display mode (with occlusion). These intermediate modes serve as a bridge, allowing the system to transition gradually through multiple states rather than jumping directly from one extreme to another, thereby reducing the harmful effect of rapid changes while still responding to spatial data availability.
2Reliability
If space data is acquired in advance for all locations, then the occlusion process can be performed everywhere, but it is not realistic and impractical
Solution Approach 1:
The patent applies dynamics by making the display mode changeable and adaptive based on the availability of spatial data in different regions. Instead of using a fixed display mode throughout, the system dynamically adjusts the display mode (0, 1, or 2) according to whether the current region has pre-acquired space data. This allows the system to handle different regions with different data availability conditions flexibly and realistically.
Solution Approach 2:
The patent applies local quality by treating different regions of the display field differently based on their spatial data availability. Regions with pre-acquired space data use one display mode (with occlusion), while regions without space data use another display mode (without occlusion). This localized approach allows the system to optimize display quality where data is available while maintaining functionality where data is not, avoiding the complexity of acquiring data for all locations.
3Adaptability or versatility
If the display mode changes rapidly when transitioning between first area and second area, then the system adapts quickly to spatial data availability, but it gives discomfort to the user
Solution Approach 1:
The patent applies continuity of useful action by ensuring that the display mode transition is continuous and gradual rather than abrupt. When moving between regions with different spatial data availability, the system maintains continuous display output by passing through intermediate modes, ensuring that the visual experience remains smooth and uninterrupted. This continuity preserves user comfort while still adapting to changing spatial data conditions.
Data Source
AI summary
A display control device includes a mode detecting unit configured to detect a mode corresponding to a level of understanding of a spatial structure of a real space displayed on a display unit and a control unit configured to control a display mode of a virtual object on the display unit according to the mode detected by the mode detecting unit. The control unit changes the display mode of the virtual object on the display unit from a first display mode corresponding to a first mode to a second display mode corresponding to a second mode via one or more intermediate display modes between the first display mode and the second display mode when the mode detected by the mode detecting unit changes from the first mode corresponding to a first level of understanding to the second mode corresponding to a second level of understanding.