Virtual Reality Image Segmentation Transit Control
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Solution Overview
Problem
In virtual reality image reproduction, screen freeze and scene skipping occur due to delayed transit time and unsynchronized frames between image segmentation before and after transition, especially when a 360° image is divided into segments and only the viewed portion is reproduced.
Innovation Solution
A method and device that control the transit time of image segmentation by determining the Play FOV by adding a Guard FOV to the Temporary FOV, generating a Virtual Device FOV wider than the Device FOV, and starting the transit procedure when a predetermined transit standard is met, while ensuring frame synchronization by transitioning only in key frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If image segmentation is reproduced to efficiently use hardware, then resource utilization is improved, but screen freeze occurs if transit time is delayed
Solution Approach 1:
The Guard FOV is added to the Temporary FOV in advance to create a buffer zone that anticipates user gaze movement. This preliminary action ensures that the next image segmentation is prepared and can be transitioned to without delay, preventing screen freeze while maintaining hardware efficiency by only loading necessary segments.
2Ease of operation
If image segmentation transit is performed, then user gaze tracking is improved, but frame synchronization fails causing replay or skipping
Solution Approach 1:
Frame synchronization is performed in advance by identifying key frames before transition. The system prepares synchronized frames ahead of time, ensuring that when the transit occurs, both the current and next image segmentations are properly aligned, preventing replay or skipping issues while maintaining responsive gaze tracking.
Data Source
AI summary
A method of virtual reality image segmentation and a virtual reality image reproducing device are disclosed. The method provides a step of determining the Play FOV of the image segmentation by adding a Guard FOV to the Temporary FOV covered by the temporary image segmentation, in the temporary image segmentation that divides the original image into Nth regions, a step of determining a Virtual Device FOV wider than a Device FOV of the head-mounted display by a predetermined Additional FOV and a step of starting a transit procedure of reproduced image segmentation among a plurality of image segmentation when a predetermined transit standard calculated using the Virtual Device FOV and Play FOV of reproduced image segmentation is satisfied.