Telephoto Imaging Support for Subject Position Registration
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Solution Overview
Problem
Imaging systems face challenges in maintaining the subject image position at a specific location within the captured image frame when the magnification is changed to the telephoto side, leading to image shake and reduced registration accuracy.
Innovation Solution
An imaging support device with a detection mechanism that uses a revolution mechanism and shake correction mechanism to adjust the subject image position to a specific location within the captured image, employing a combination of revolution and shake correction controls based on the detected offset amount to ensure accurate positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If magnification is changed to the telephoto side by the variable magnification mechanism, then the imaging range is narrowed and the subject is magnified, but the subject image position shifts within the captured image
Solution Approach 1:
The patent segments the position correction function into two independent parts: revolution mechanism for coarse position adjustment and shake correction mechanism for fine position adjustment. This segmentation allows each mechanism to operate independently to correct subject image position shifts, resolving the contradiction by maintaining position accuracy without requiring a single complex correction system
Solution Approach 2:
The control unit acts as an intermediary that coordinates between the variable magnification mechanism, revolution mechanism, and shake correction mechanism. It detects subject image position shifts and determines the appropriate correction strategy by controlling one or both correction mechanisms, thereby maintaining position accuracy while managing system complexity through intelligent coordination
2Adaptability or versatility
If a revolution mechanism is used to adjust the subject image position, then the positioning range is expanded, but the registration accuracy may be insufficient for fine position adjustments
Solution Approach 1:
The patent divides the position correction task into two segments: the revolution mechanism handles coarse position adjustment to bring the subject within the imaging range, while the shake correction mechanism handles fine position adjustment to achieve precise registration. This segmentation resolves the contradiction by assigning different precision requirements to different mechanisms
Solution Approach 2:
The control unit dynamically selects and switches between correction strategies based on the subject image position offset amount. When the offset is large, the revolution mechanism is activated for coarse correction; when the offset is small, the shake correction mechanism is used for fine correction. This dynamic adaptation resolves the contradiction between adjustment range and precision
3Stability of the object's composition
If a shake correction mechanism is used to correct image shake, then the image stability is improved, but the correction range is limited for large position offsets
Solution Approach 1:
The patent segments the correction range into two zones: the revolution mechanism handles large position offsets to bring the subject within the imaging range, while the shake correction mechanism handles small position offsets to stabilize the image. This segmentation resolves the contradiction by matching each mechanism's capabilities to appropriate correction ranges
Solution Approach 2:
The control unit dynamically determines which correction mechanism to activate based on the subject image position offset amount. For large offsets, the revolution mechanism is controlled to expand the correction range; for small offsets, the shake correction mechanism is controlled to maximize image stability. This dynamic switching resolves the contradiction between correction range and stability
4Ease of operation
If the subject image position is not corrected when magnification changes, then the system operation is simple, but the subject image moves away from the desired position in the captured image
Solution Approach 1:
The system implements self-service by automatically detecting subject image position shifts and activating the appropriate correction mechanism without requiring manual intervention. The control unit monitors the offset amount and autonomously controls the revolution and/or shake correction mechanisms to maintain position accuracy, resolving the contradiction by making the complex correction process transparent to the user
Data Source
AI summary
An imaging support device includes a detection portion that, by operating a revolution mechanism that causes an imaging apparatus including a variable magnification mechanism to revolve, detects a subject image position of a target subject image showing a target subject in a captured image obtained by capturing an imaging region including the target subject by the imaging apparatus, and a control portion that perform a registration control of setting the subject image position detected by the detection portion to a specific position in the captured image for a captured image obtained by imaging performed by the imaging apparatus in accordance with changing of magnification to a telephoto side by the variable magnification mechanism.