Digital Holography Control Device for Super-Resolution Imaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In digital holography, existing technologies waste labor by capturing interference fringe images that have almost no contribution to super-resolution, even though they are part of the multiple images required for generating a super-resolution interference fringe image with a resolution exceeding that of the imaging element.
Innovation Solution
A control device for an imaging apparatus that includes a light source and an imaging element, where the light source irradiates an observation target with illumination light from multiple irradiation positions with different angles, and the imaging element outputs interference fringe images. The control device acquires positional information of the observation target, sets required irradiation positions, controls the light source to emit illumination light from these positions, and outputs interference fringe images only from positions necessary for achieving super-resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If illumination light is emitted from all plurality of irradiation positions, then super-resolution interference fringe image can be obtained, but processing time and labor are wasted on capturing images with almost no contribution to super-resolution
Solution Approach 1:
The system performs preliminary action by acquiring positional information of the observation target and pre-calculating which irradiation positions are necessary for super-resolution before actually capturing images. This allows the system to skip unnecessary irradiation positions and only capture images from positions that will contribute to the final super-resolution result, thereby reducing processing time while maintaining image quality
Solution Approach 2:
Instead of performing action at all plurality of irradiation positions (excessive action), the system performs action only at the subset of irradiation positions that are actually necessary for super-resolution (partial action). The control device determines the minimum required set of irradiation positions based on the observation target's position, thus avoiding wasted time on redundant image captures while still achieving the desired super-resolution effect
2Reliability
If illumination light is emitted from all plurality of irradiation positions, then complete interference fringe image data is obtained, but processing complexity increases due to handling unnecessary images
Solution Approach 1:
The system extracts only the necessary interference fringe images from the complete set of plurality of irradiation positions. By identifying and removing redundant images that have almost no contribution to super-resolution, the system maintains reliability of the essential data while significantly reducing processing complexity for super-resolution generation
Solution Approach 2:
The system applies local quality by treating different irradiation positions differently based on their contribution to super-resolution. Instead of uniformly processing all images, the control device selectively processes only those images from irradiation positions that are locally determined to be necessary, thereby reducing overall processing complexity while maintaining data reliability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution allows for the generation of super-resolution interference fringe images without wasteful labor, as only the necessary interference fringe images are captured, thereby improving efficiency in digital holography systems.
Implementation Method 1
diffracted light which is illumination light diffracted by the observation target
Implementation Method 2
an interference fringe image is output from an imaging element by imaging, but the imaging element, an interference fringe between diffracted light which is illumination light diffracted by the observation target and reference light
Data Source
AI summary
A control device includes a processor. The processor acquires positional information indicating a position of an observation target. The processor sets, from among a plurality of irradiation positions, a required irradiation position, which is an irradiation position corresponding to the position of the observation target indicated by the positional information and is an irradiation position required for obtaining a plurality of the interference fringe images that are sources of a super-resolution interference fringe image having a resolution exceeding a resolution of an imaging element. The processor causes a light source to emit an illumination light from the required irradiation position by controlling an operation of the light source, and causes the imaging element to outputs the interference fringe image at each required irradiation position.