3D Display Disparity Conversion for Depth Scaling
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Solution Overview
Problem
Existing 3D display apparatuses face challenges in seamlessly converting and outputting 3D image signals between devices of different sizes and characteristics, leading to distortion of the original 3D effect and user fatigue due to excessive depth adjustments.
Innovation Solution
A 3D display apparatus that communicates with other devices, featuring a reception unit, conversion unit, and display unit, which receives 3D image signals, converts disparity based on transmitter and receiver information, and adjusts depth information to maintain a proportional 3D effect, using equations and look-up tables to ensure accurate scaling and reduce eye fatigue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If image size conversion is performed according to display size, then the 3D image signal can be displayed on different sized devices, but the original 3D effect becomes distorted
Solution Approach 1:
The patent changes the parameter being converted from image size to disparity. Instead of converting the overall image dimensions, the system specifically converts the disparity values (horizontal distance between corresponding pixels in left and right images) while maintaining the original image size. This selective parameter conversion preserves the 3D effect accuracy while enabling display compatibility across different device sizes.
Solution Approach 2:
The patent introduces transmitter information (metadata containing display size and viewing distance) as an intermediary element. This metadata acts as a mediator that carries the original device's characteristics through the transmission process, enabling the receiving device to calculate appropriate disparity conversions without directly altering the original image data, thus preserving 3D effect fidelity.
2Adaptability or versatility
If disparity is adjusted by considering only display size, then the 3D image can be displayed on different devices, but the depth becomes excessive and causes user fatigue
Solution Approach 1:
The patent expands the conversion parameters from only display size to include both display size and viewing distance. By incorporating viewing distance into the disparity conversion calculation, the system can adjust the depth perception to match the physical viewing conditions, preventing excessive depth effects that cause user fatigue while maintaining display adaptability.
Solution Approach 2:
The system uses transmitter information as feedback about the original display conditions. This metadata provides information about the source device's display size and viewing distance, allowing the receiving device to calculate disparity adjustments that compensate for differences in viewing geometry, thereby maintaining comfortable depth perception across different display scenarios.
Data Source
AI summary
A three-dimensional (3D) display apparatus and method controlling thereof are provided. The 3D display apparatus includes: a reception unit which receives a 3D image signal from another 3D display apparatus; a conversion unit which converts a disparity of the 3D image signal based on transmitter information of the other 3D display apparatus and receiver information of the 3D display apparatus, and generates an output 3D image signal having depth information which is proportional to depth information of the 3D image signal; and a display unit which outputs the output 3D image signal.