Imaging Control Device Optical Axis Adjustment High Resolution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Imaging devices using pupil division methods cannot obtain high spatial resolution captured images due to the addition of pixel signals from light receiving elements, which limits their ability to calculate parallax effectively.
Innovation Solution
An imaging control device that adjusts the optical axis position of an imaging optical system to generate pixel signals for each region of the exit pupil, using a color filter with a predetermined pattern, and performs binning of these signals to enhance image resolution, while correcting for blurring caused by movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pixel signals from light receiving elements corresponding to different pupils are added to generate one pixel signal, then parallax can be calculated, but spatial resolution of the captured image deteriorates
Solution Approach 1:
The imaging element divides the exit pupil into multiple regions, with each region having its own light receiving element that generates a separate pixel signal. This segmentation allows independent processing of signals from different pupils while maintaining spatial resolution information.
Solution Approach 2:
The patent introduces a temporal dimension by moving the optical axis position to generate multiple pixel signals indicating the same subject region at different positions. These signals are then processed in the time direction through binning, adding a temporal processing dimension to the traditional spatial processing.
2Manufacturing precision
If the optical axis position is adjusted to generate pixel signals indicating the same subject region, then high-resolution captured images can be acquired, but device complexity increases
Solution Approach 1:
The optical axis position adjustment unit serves multiple functions: it enables the generation of pixel signals from different pupil regions for parallax calculation, and also allows the optical axis to be positioned at multiple locations to generate signals indicating the same subject region for high-resolution imaging. This multi-functionality reduces the need for separate dedicated components.
Solution Approach 2:
The system dynamically adjusts the optical axis position between different imaging operations. The adjustment unit can move the optical axis to different positions based on the required imaging mode (parallax measurement or high-resolution capture), enabling flexible adaptation to different functional requirements without requiring multiple fixed optical paths.
Data Source
AI summary
An imaging element of an imaging unit 24 divides the exit pupil of an imaging optical system 21 into a plurality of regions and generates a pixel signal for each region. An optical axis position adjustment unit 23 adjusts the optical axis position of the imaging optical system with respect to the imaging element. A control unit 26 calculates a parallax on the basis of the pixel signal for each region after the pupil division and performs focus control of the imaging optical system 21. The control unit 26 also moves the optical axis position using the optical axis position adjustment unit 23, and generates, using the imaging element, pixel signals indicating the same subject region in the plurality of regions after the pupil division. An image processing unit 25 performs binning of a plurality of pixel signals indicating the same subject region generated by moving the optical axis position to generate a high-resolution captured image. Calculation of the parallax and acquisition of a high-resolution captured image can be performed.