Hologram Generation via Recurrent Interpolation and Pattern Duplication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for generating three-dimensional (3D) holograms are inefficient due to increased computational complexity with sophisticated objects, requiring extensive calculations and often relying on separate look-up tables that slow down the process and increase memory access, especially when using multiple processors.
Innovation Solution
The proposed method generates a hologram pattern by calculating pattern values for a one-eighth area using the Rayleigh-Sommerfeld solution and recurrent interpolation, eliminating the need for a look-up table and optimizing processor usage by duplicating patterns across the entire area, thereby reducing operational delays and enhancing parallel processing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional digital hologram generation methods are used with sophisticated 3D spatial objects, then the hologram quality and detail are improved, but the calculation complexity and generation time increase significantly
Solution Approach 1:
The patent divides the hologram generation process into distinct modules: a calculation unit that computes hologram data based on 3D object information, and a storage unit that stores this data. This segmentation allows parallel processing and optimization of each module independently, reducing overall generation time while maintaining hologram quality.
Solution Approach 2:
The patent pre-calculates and stores hologram data in the storage unit before actual hologram generation is needed. This preliminary action enables faster real-time hologram creation by retrieving pre-computed data, significantly reducing generation time while preserving detailed hologram quality.
2Measurement precision
If separate look-up tables are used for hologram generation, then calculation accuracy is improved, but memory access time and operational delays increase
Solution Approach 1:
The patent merges the calculation unit and storage unit into an integrated system where hologram data is calculated and stored together in close proximity. This eliminates the need for separate look-up tables and reduces memory access time by having the storage unit immediately available to the calculation unit, thereby reducing operational delays while maintaining calculation accuracy.
3Productivity
If multiple processors are used for parallel processing, then generation speed is improved, but operational delays from external memory access increase
Solution Approach 1:
The storage unit is designed to serve multiple processors simultaneously, providing a universal storage solution that all calculation units can access. This multi-functional storage unit reduces operational delays by eliminating the need for each processor to access external memory separately, allowing parallel processing to proceed efficiently without bottleneck delays.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An apparatus for generating a hologram pattern reconstructing a three-dimensional (3D) object at a high speed, the apparatus including a pattern setting unit (1430) to set points for which hologram patterns are to be generated with respect to a one-eighth area (1001) of an entire area (1000) for which a hologram pattern is to be generated, a calculation unit to calculate hologram pattern values (1440) for a plurality of reference points selected within the one-eighth area (1001) of the entire area, and to generate a hologram pattern for the one-eighth area using recurrent interpolation (1450), and a hologram pattern duplicating unit (1460) to complete a whole hologram pattern for the entire area (1000) by duplicating (1002, 1020, 1030, 1040) the generated hologram pattern for the one-eighth area (1001).