Image Blur Correction Apparatus Object Movement Detection
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Solution Overview
Problem
Panning techniques in photography are challenging due to difficulties in maintaining camera alignment with moving objects and determining optimal shutter speeds, especially for inexperienced photographers, as existing assist functions do not accurately detect object movement and lens position changes.
Innovation Solution
An image blur correction apparatus that includes a processor, memory, and detection units to accurately detect object movement and correct image blur by synchronizing position information with detection signals, allowing for precise control of the correction unit to adjust the shutter speed and lens position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a correction optical system is driven to correct image blur, then image quality is improved, but object shaking detection accuracy deteriorates because the movement vector cannot be accurately detected
Solution Approach 1:
The patent introduces position information of the correction optical system as an intermediary element. The calculation unit uses this position information to compensate for the displacement caused by the correction optical system, thereby recovering the accurate movement vector of the object even when the correction system is active. This intermediary approach allows the system to distinguish between the correction action and the actual object movement.
Solution Approach 2:
The patent implements a feedback mechanism where the position information of the correction optical system is continuously fed back to the calculation unit. This feedback loop allows the system to adjust the movement vector calculation dynamically, accounting for the displacement introduced by the correction optical system and maintaining accurate object shaking detection throughout the correction process.
2Adaptability or versatility
If panning is performed with different focal lengths and object speeds, then photography versatility is improved, but shutter speed setting difficulty increases for inexperienced photographers
Solution Approach 1:
The patent implements a self-service function where the camera system automatically calculates and sets the optimal shutter speed based on detected object movement and panning parameters. The control unit autonomously determines the shutter speed without requiring manual input from the photographer, making the complex panning process accessible to beginners while maintaining versatility for different shooting conditions.
Solution Approach 2:
The patent dynamically adjusts the shutter speed parameter based on real-time detection of object movement speed and the current panning state. The control unit modifies the shutter speed setting according to the detected parameters, allowing the system to adapt to different focal lengths and object speeds automatically, thereby providing versatile panning capability with simplified operation.
Data Source
AI summary
An imaging apparatus includes an angular velocity sensor configured to detect shaking and a motion vector detection unit configured to detect movement in a captured image. A shift lens group constitutes a correction optical system configured to correct an image blur due to shaking exerted on the imaging apparatus. A position sensor detects a position of the shift lens group. A distance acquiring unit acquires distance information associated with the captured image. When an angular velocity of an object is calculated on the basis of a shaking detection signal, a movement vector, position information of the shift lens group, and the distance information, an object angular velocity calculating unit calculates an amount of movement of the object by adding position information of the shift lens group synchronized with a detection period of the movement vector to movement vector information and calculates an amount of shaking correction.