Imaging Control Apparatus Merging Phase Difference Sensors
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Solution Overview
Problem
There is a need to enhance the accuracy of auto focus in imaging systems, as existing techniques are not sufficient in achieving precise focal point detection.
Innovation Solution
An imaging control apparatus and method that utilize both a dedicated phase difference detection sensor and an image plane phase difference detection sensor to receive and process information for focal point detection, allowing for improved accuracy by combining data from both sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a dedicated phase difference detection sensor is used for focal point detection, then the detection speed is improved, but the measurement precision deteriorates
Solution Approach 1:
The patent combines information from both a dedicated phase difference detection sensor and an image plane phase difference detection sensor to detect the focal point. This merging of data sources allows the system to leverage the fast detection speed of the dedicated sensor while achieving the high precision of the image plane sensor, thereby resolving the contradiction between speed and precision.
2Measurement precision
If an image plane phase difference detection sensor is used for focal point detection, then the measurement precision is improved, but the detection speed deteriorates
Solution Approach 1:
The patent merges data from the image plane phase difference detection sensor with information from the dedicated phase difference detection sensor. This combination allows the system to achieve high precision focal point detection while maintaining fast detection speed, resolving the contradiction between precision and speed.
Solution Approach 2:
The dedicated phase difference detection sensor acts as an intermediary that provides initial fast detection results, which are then refined using data from the image plane phase difference detection sensor. This intermediary approach enables the system to achieve both fast detection speed and high precision.
3Device complexity
If only a single sensor is used for focal point detection, then the device complexity is reduced, but the reliability deteriorates
Solution Approach 1:
The patent merges information from multiple sensors (dedicated phase difference detection sensor and image plane phase difference detection sensor) to detect the focal point. This multi-sensor approach enhances the reliability of focal point detection by providing redundant and complementary data sources, while the integrated control circuitry manages the complexity of coordinating these sensors.
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
The solution enhances the accuracy of auto focus by effectively utilizing data from both sensors, addressing limitations in existing techniques and providing more precise focal point detection.
Implementation Method 1
a dedicated phase difference detection sensor and an image plane phase difference detection sensor to receive and process information for focal point detection
Data Source
AI summary
The present disclosure includes an imaging control apparatus, an imaging control method, and an imaging apparatus. The imaging control apparatus includes a focal point detection control circuitry configured to receive first information from a range-finding area of a dedicated phase difference detection sensor and second information from a range-finding area of an image plane phase difference detection sensor, and detect a focal point based on at least one of the first information or the second information.