Virtual Space Visibility Transition for Natural Eye Focus Blur
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Solution Overview
Problem
Existing virtual space image generation methods fail to accurately replicate the temporal change in blurriness associated with focal point adjustment of the human eye, leading to discrepancies between virtual and real-space visibility changes when the user's viewpoint moves.
Innovation Solution
A virtual space image generation device that includes an image generation unit capable of generating a visibility change region with a transition completion time period based on a predetermined condition, allowing the visibility to transition between states as the user's viewpoint moves, thereby mimicking real-space blurriness changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the blurring process is executed at high speed according to hardware performance, then image processing efficiency is improved, but the temporal change in blurriness does not match real-space focal point adjustment characteristics
Solution Approach 1:
The patent applies dynamics by making the blurring process speed variable rather than constant. The image generation unit adjusts the transition completion time period dynamically based on the movement amount of the viewpoint. When the viewpoint moves significantly, the blurriness transition is extended over a longer time period, replicating the natural focal point adjustment characteristics of the human eye. This dynamic adjustment resolves the contradiction by allowing high processing speed for small movements while maintaining temporal accuracy for larger movements.
2Measurement precision
If the transition completion time period is extended to match eye focal point adjustment, then temporal accuracy of blurriness is improved, but image processing time increases
Solution Approach 1:
The system dynamically adjusts the transition completion time period based on the movement amount of the viewpoint. For small viewpoint movements, the transition is completed quickly, minimizing processing time. For larger viewpoint movements that require more significant focal point adjustment, the transition completion time is extended to match natural eye characteristics. This dynamic approach optimizes the balance between temporal accuracy and processing time loss.
3Device complexity
If the blurring process range and strength are fixed based on rotation speed, then device complexity is reduced, but visibility accuracy in virtual space differs from real space
Solution Approach 1:
The patent introduces dynamic control of the blurring process by adjusting the transition completion time period based on viewpoint movement amount. This adds a time dimension to the blurring control, transforming it from a static process (fixed range and strength) to a dynamic one that adapts to the magnitude of viewpoint changes. This dynamic approach improves visibility accuracy by replicating the temporal characteristics of real-space focal point adjustment without significantly increasing device complexity.
Data Source
AI summary
A virtual space image generation device generates a virtual space image including a visibility change region in which a visibility changes based on movement of a viewpoint of a user. The virtual space image generation device includes an image generation unit that generates the virtual space image in which a transition completion time period required for transition of a visibility of the visibility change region between a first state and a second state different from the first state changes based on a predetermined condition, when the viewpoint of the user moves.