Multi-Optical System Camera Shake Detection
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Solution Overview
Problem
Digital photographing apparatuses face challenges in determining a base optical system effectively to achieve high picture quality, as existing methods do not adequately account for shake information and user input, leading to inconsistent image quality due to hand-shake and exposure variations.
Innovation Solution
A method and apparatus that derive shake information from multiple optical systems, determining a base optical system by calculating point spread functions (PSFs) or detecting grip position, allowing for pre- or post-image capture determination based on user input, to select the least shaken or closest optical system for image capture, thereby optimizing image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple optical systems are used to capture images, then image quality can be improved through selection, but the complexity of determining the base optical system increases
Solution Approach 1:
The patent replaces complex mechanical or manual determination of the base optical system with automated computational methods. Specifically, it uses shake information derivation from gyro sensors and PSF-based calculations to automatically identify the optimal base optical system, eliminating the need for manual intervention while improving image quality through objective, data-driven selection.
Solution Approach 2:
The system performs self-determination of the base optical system by automatically deriving shake information from its own gyro sensor and calculating PSFs from captured images. This self-service mechanism allows the camera to autonomously identify the least shaken optical system without external intervention, simplifying the overall system operation while maintaining high image quality.
2Measurement precision
If shake information derivation and base optical system determination are performed before image capture, then image quality is optimized, but the processing time increases
Solution Approach 1:
The patent performs shake information derivation and base optical system determination before image capture to ensure optimal image quality. By pre-identifying the least shaken optical system and setting it as the base, the system prepares the best possible configuration for upcoming shots, particularly important in continuous shooting modes where consistent quality across multiple frames is critical.
Solution Approach 2:
The system dynamically adjusts the base optical system determination timing based on shooting conditions. In continuous shooting mode, it performs determination before capture to maintain consistency, while in single-shot mode or when conditions change, it can re-evaluate and update the base optical system selection, making the system adaptable to different operational requirements.
3Ease of operation
If grip position detection is used to determine the base optical system, then the determination process is simplified, but accuracy may be reduced compared to PSF-based methods
Solution Approach 1:
The patent implements a dynamic determination mechanism that adapts the base optical system selection method based on shooting conditions. When using grip position detection, it provides quick and simple determination suitable for general use. When PSF-based methods are applied, it offers higher accuracy for critical shots. The system can switch between these approaches or combine them, making the determination process both easy to operate and accurately precise when needed.
Data Source
AI summary
An apparatus, computer readable medium, and a method of controlling a digital photographing apparatus comprising a plurality of optical systems, the method including deriving shake information from the plurality of optical systems; and determining a base optical system from among the plurality of optical systems according to the shake information.