Image Correction for Adjustable VR Helmet
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Solution Overview
Problem
Adjustable virtual reality helmets experience degraded image correction effects due to unchanged image correction parameters after structural adjustments, leading to significant image deformation and color aberration effects.
Innovation Solution
Pre-storing a corresponding relation table between configuration and image correction parameters in the helmet, allowing for real-time image correction by searching and applying the appropriate correction parameters based on current configuration settings, including distortion and color aberration compensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the physical structure of the helmet is adjusted to accommodate different users, then the adaptability of the helmet is improved, but the image correction effect deteriorates because the original image correction parameters are no longer accurate
Solution Approach 1:
The patent applies dynamics by making the image correction parameters changeable and adjustable according to the actual configuration state of the helmet. When the helmet structure is adjusted (e.g., lens position, screen distance), the system dynamically updates the corresponding image correction parameters to maintain accurate correction across different user configurations.
Solution Approach 2:
The patent implements parameter changes by establishing a correspondence relationship between helmet configuration parameters (such as lens-screen distance, lens separation) and image correction parameters. When configuration parameters change due to structural adjustment, the system retrieves or calculates the corresponding updated correction parameters to maintain imaging accuracy.
2Device complexity
If fixed image correction parameters are used in an adjustable helmet, then the device complexity is reduced, but the image quality deteriorates due to degradation of correction effects
Solution Approach 1:
The patent applies preliminary action by pre-establishing a correspondence relationship table between helmet configuration parameters and image correction parameters. This allows the system to quickly retrieve appropriate correction parameters based on the current configuration state without requiring complex real-time calculations, thus maintaining both simplicity and reliability.
Solution Approach 2:
The patent implements feedback by monitoring the actual configuration parameters of the helmet and using this information to select or adjust the appropriate image correction parameters. This closed-loop approach ensures that the correction system adapts to configuration changes while maintaining a relatively simple structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach provides improved image correction effects by adapting to real-time changes in the helmet's configuration, enhancing optical performance and reducing distortion and color aberration, especially for users with varying interpupillary distances or presbyopic/myopic conditions.
Implementation Method 1
light emitted from small displays passes convex lenses so that a seemingly distant effect is produced by refraction
Implementation Method 2
the amplification rate of a lens changes along with changes of angles between light beams and a main axis of the lens and is not a constant value
Implementation Method 3
The color aberration effect is caused by different wavelengths and refractive indexes of light of different colors
Data Source
AI summary
The present invention discloses an image correction method for an adjustable virtual reality helmet. The method comprises the steps of: pre-storing in the helmet a corresponding relation table between a configuration parameter and an image correction parameter and an image correction formula of the helmet; acquiring a real-time configuration parameter of the helmet; searching in the corresponding relation table an image correction parameter corresponding to a configuration parameter closest to the real-time configuration parameter; and performing image correction by calling the image correction formula based on a searched image correction parameter. The present invention also provides an image correction system for an adjustable virtual reality helmet. The present invention can provide better image correction effects for an adjustable virtual reality helmet.