VR Bullet Curtain Display Adaptation
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Solution Overview
Problem
Existing bullet curtain technologies in Virtual Reality (VR) videos are limited to fixed 2D plane displays, failing to provide an immersive experience as they do not adapt to the user's changing visual field, leading to a suboptimal viewing experience.
Innovation Solution
A method and apparatus that utilize a VR device's motion sensor to detect the user's visual field and determine the target bullet curtain to display based on location information from a library, ensuring different bullet curtains are shown depending on the user's orientation, thereby enhancing the experience by displaying relevant content at different locations within the user's field of view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If bullet curtains are displayed on a fixed 2D plane during VR video playback, then the implementation is simple and the screen is fully utilized, but the user experience is poor because the bullet curtains do not adapt to the user's changing visual field
Solution Approach 1:
The bullet curtain display system transitions from a static 2D plane to a dynamic spatial distribution system that adapts to the user's visual field. The system dynamically determines which bullet curtains to display based on the user's current viewing direction and visual field parameters, making the display content adaptive rather than fixed.
Solution Approach 2:
The patent extends the bullet curtain display from a two-dimensional plane to a three-dimensional spatial distribution within the VR environment. By incorporating depth information and spatial positioning, bullet curtains are distributed throughout the virtual space rather than confined to a flat screen, allowing the system to select and display relevant bullet curtains based on the user's orientation and visual field in 3D space.
2Loss of information
If all bullet curtains are displayed simultaneously in the VR video, then the user can see all user comments, but the screen becomes overcrowded and the user experience deteriorates
Solution Approach 1:
Instead of uniformly displaying all bullet curtains across the entire screen, the system applies local quality by selectively displaying specific bullet curtains in specific regions of the user's visual field. The display content and position are customized for different local areas based on the user's current viewing direction, ensuring that only relevant bullet curtains are visible in each region.
Solution Approach 2:
The system employs partial action by displaying only a subset of bullet curtains that are relevant to the user's current visual field rather than all available bullet curtains. This selective display approach prevents screen overcrowding while ensuring that the most important and relevant user comments are visible, sacrificing complete visibility for improved readability and user experience.
3Extent of automation
If bullet curtains are displayed in real-time during live VR videos, then the interactivity is enhanced, but the system complexity increases due to real-time visual field detection and processing
Solution Approach 1:
The system implements self-service by automatically detecting the user's visual field and autonomously determining which bullet curtains to display without requiring manual intervention. The system continuously monitors the user's viewing direction and automatically adjusts the bullet curtain display accordingly, enabling real-time adaptability through automated processes rather than user-controlled adjustments.
Solution Approach 2:
The system establishes a feedback loop where the user's visual field information is continuously detected and fed back to the display control system. Based on this feedback, the system dynamically adjusts which bullet curtains are displayed and where they appear in the user's field of view, creating a closed-loop control system that adapts in real-time to user behavior.
Data Source
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AI summary
The present disclosure relates to a method and an apparatus for displaying a bullet curtain in a VR video. During playback of the VR video, a VR device may detect (S101) a visual field of a user, determine (S102) a target bullet curtain to be displayed in the visual field of the user based on location information of a plurality of bullet curtains stored in a bullet curtain library, and then display (S103) the target bullet curtain in the display area corresponding to the visual field of the user. With the method, depending on different visual fields of the user, different bullet curtains can be displayed in the display area corresponding to the visual field of the user, so that the user can see different bullet curtains when facing different locations at a same time and thus have a better experience.