3D Image Depth Adjustment for Visual Fatigue Reduction
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Solution Overview
Problem
Current 3D display technologies cause visual fatigue due to the disparity between accommodation and convergence points, which increases with the depth of the image, leading to user discomfort.
Innovation Solution
A method and apparatus that adjust the depth of a 3D image by extracting and manipulating spatial and temporal depth information to reduce viewer eyestrain, using conversion lookup tables and functions to adjust depth values of image pixels based on calculated average depth values and differences between frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the depth of the 3D image is increased to enhance the stereoscopic effect, then the stereoscopic effect is improved, but the visual fatigue increases due to the disparity between accommodation and convergence points
Solution Approach 1:
The patent applies dynamics by making the depth of the 3D image adjustable rather than fixed. The depth adjusting unit dynamically modifies the depth value based on user input or automatic detection, allowing the system to adapt between strong stereoscopic effect and reduced visual fatigue depending on viewing conditions and user preference
Solution Approach 2:
The patent changes the depth parameter of the 3D image to resolve the contradiction. By adjusting the depth value within a range, the system can optimize the balance between stereoscopic effect and visual comfort, transforming a static parameter into a controllable variable that addresses both competing requirements
2Adaptability or versatility
If the depth of the 3D image is increased, then the stereoscopic effect is enhanced, but the disparity between accommodation and convergence points increases causing viewer discomfort
Solution Approach 1:
The system dynamically adjusts the depth parameter based on user feedback and viewing conditions. The depth adjusting unit allows real-time modification of depth values, enabling the stereoscopic effect to be optimized without causing excessive viewer discomfort
Solution Approach 2:
The patent incorporates feedback mechanisms where user responses to depth adjustment are detected and used to further optimize the depth value. This feedback loop allows the system to learn user preferences and automatically adjust depth to maintain both stereoscopic quality and viewer comfort
Data Source
AI summary
A depth adjusting method and apparatus is described. The depth adjusting method and apparatus may calculate an average depth value of objects based on a spatial feature of an image, may adjust a depth of the image based on the calculated average value, and may adjust a depth of the image according to a difference in depth between a current frame and a previous frame, based on a temporal feature of the image.