Hologram Generation Segmenting Fringe Patterns
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Solution Overview
Problem
Current high-resolution hologram generation techniques face challenges in speed due to increased calculation complexity and data loss, leading to prolonged processing times and image quality deterioration when using segment-based division methods.
Innovation Solution
The proposed method involves calculating the size of elemental fringe patterns for each depth, dividing the hologram resolution into segments based on these patterns, and expanding segment resolutions to reduce calculation complexity and data loss, while accumulating overlapping regions to generate holograms efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If segment-based hologram generation is used to reduce memory requirements, then memory size is reduced, but calculation complexity increases and generation speed deteriorates
Solution Approach 1:
The patent divides the hologram into multiple segments (e.g., 4 segments) to reduce memory requirements and enable high-resolution hologram generation. Each segment is processed independently, reducing the memory footprint while maintaining the ability to generate high-resolution holograms that would otherwise require excessive memory capacity.
2Quantity of substance
If independent calculation of each segment is performed, then memory requirements are reduced, but image quality deteriorates due to data loss and blocking artifacts
Solution Approach 1:
The patent performs preliminary calculations to determine wave field propagation paths and predicts which polygons will propagate to which segments. This preliminary analysis enables proper data distribution and prevents data loss by ensuring that wave field data is correctly allocated to appropriate segments before independent calculation begins.
Solution Approach 2:
The patent implements feedback mechanisms where wave field data is reflected back to predicted segments based on propagation analysis. This feedback process ensures that data loss is minimized by correctly routing wave field information to the appropriate segments, thereby maintaining image quality while still using independent segment calculation.
3Loss of information
If additional processing for reading and writing data is added to segments, then data loss is reduced, but processing time increases significantly
Solution Approach 1:
The patent performs preliminary analysis to predict wave field propagation paths and determines data routing in advance. This preliminary action eliminates the need for additional reading and writing operations during the main calculation process, as data is pre-allocated to appropriate segments based on predicted propagation paths.
Solution Approach 2:
The patent extracts and removes unnecessary reading and writing operations from the processing pipeline by using predicted propagation paths to directly allocate data to segments. This extraction of redundant I/O operations significantly reduces processing time while maintaining data integrity and minimizing data loss.
Data Source
AI summary
In the present invention, by receiving three-dimensional spatial data for a three-dimensional object, calculating a size of an elemental fringe pattern for each depth and a maximum size of the elemental fringe pattern for the three-dimensional spatial data, dividing the entire resolution of an entire predetermined hologram into a plurality of segments based on the number of divisions of the horizontal direction and the vertical direction, expanding resolution for each segment based on a maximum size for the elemental fringe pattern size, calculating a plurality of segment unit holograms for each of the segments, and accumulating overlapping regions between the plurality of segment unit holograms to produce the entire hologram for the entire resolution, it is possible to provide a hologram generating apparatus and method which may generate a hologram having a higher resolution at a faster speed than the conventional one.