Autostereoscopic Display View Number Assignment
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Solution Overview
Problem
Existing autostereoscopic display systems face challenges in accurately and efficiently assigning view numbers to display elements, leading to inaccuracies and increased computational complexity, especially in high-resolution displays due to manufacturing inaccuracies and rounding errors.
Innovation Solution
A computer-implemented method and processor system that determine view numbers for display elements using a [h,v,t] notation, approximating pitch and slant values to minimize approximation errors, allowing for efficient and accurate phase calculation and view number assignment, even in high-resolution displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If exact pitch and slant values are used for phase calculation, then measurement precision is improved, but device complexity increases due to accumulation of rounding errors in high-resolution displays
Solution Approach 1:
The patent changes the parameters from exact floating-point pitch and slant values to integer-based [h,v,t] notation. This transformation converts continuous parameters into discrete integer values, eliminating rounding errors while maintaining sufficient precision for view number assignment in high-resolution displays.
Solution Approach 2:
The patent creates a simplified integer representation [h,v,t] that copies the essential geometric relationships of the original pitch and slant parameters. This integer copy preserves the phase calculation functionality without the computational burden of floating-point arithmetic, allowing efficient implementation in hardware or software.
2Device complexity
If integer values are used to approximate pitch and slant, then device complexity is reduced, but measurement precision deteriorates due to approximation errors
Solution Approach 1:
The patent transforms the parameter representation from floating-point to integer domain, where [h,v,t] are integers that approximate pitch and slant. The approximation is designed to accumulate less than one pixel of error across the entire display, which is acceptable for view number assignment while enabling simple integer-based phase calculations.
Solution Approach 2:
The patent applies partial precision - using integer approximation rather than full floating-point precision. The approximation error is controlled to be less than one pixel accumulation across the display, which is sufficient for the application's requirements while dramatically reducing computational complexity.
3Ease of manufacture
If conventional phase calculation methods are used, then ease of manufacture is maintained, but manufacturing precision deteriorates due to rounding errors in high-resolution displays
Solution Approach 1:
The patent creates an integer-based copy [h,v,t] of the pitch and slant parameters that eliminates rounding errors in phase calculation. This integer representation can be manufactured or implemented directly in hardware logic or software without the accumulation errors inherent in floating-point arithmetic, ensuring consistent precision across all display elements.
Solution Approach 2:
The integer-based phase calculation method is self-correcting in that it naturally prevents rounding error accumulation without requiring additional correction mechanisms. The modulo operation with integer t ensures that phase values wrap correctly without floating-point precision issues, making the system inherently more precise while remaining easy to implement.
Data Source
AI summary
A processor system and computer-implemented method are provided for assigning view numbers to display elements of an autostereoscopic display for use in interleaving image data of different viewpoints of a scene on the basis of said assigned view numbers. The assignment is performed in an efficient yet accurate manner and may be easily adapted to different optical designs of such autostereoscopic displays, for example, in terms of pitch and/or slant of the optical elements used in such autostereoscopic displays, or to different sub-pixel layouts of the display panel.