Imaging Support Control for Subject Tracking and Shake Correction
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Solution Overview
Problem
Existing imaging systems face challenges in accurately tracking and stabilizing target subjects within captured images, particularly due to vibrations and movements, which affect image quality and stability.
Innovation Solution
An imaging support device that calculates and adjusts the position of a target subject image within a captured image using a combination of a revolution mechanism and a shake correction portion, based on in-image shift amounts, focal length, and pixel interval, to maintain image stability and tracking accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a shake correction unit is used to correct image shake, then image stability is improved, but the ability to track a moving subject is reduced
Solution Approach 1:
The patent divides the correction function into two separate units: a shake correction unit that stabilizes the image by correcting vibrations, and a tracking unit that follows the subject's movement. This segmentation allows each unit to specialize in one function, resolving the contradiction between stability and tracking accuracy.
Solution Approach 2:
The patent dynamically switches between shake correction and tracking modes based on the subject's movement state. When the subject is stationary, shake correction is applied; when the subject moves, tracking takes over. This dynamic adjustment resolves the contradiction by adapting the correction strategy to the actual situation.
2Measurement precision
If tracking of a moving subject is prioritized, then subject tracking accuracy is improved, but image stability deteriorates
Solution Approach 1:
The patent uses feedback from the subject detection unit to determine whether the subject is moving or stationary. Based on this feedback, the control unit switches between shake correction and tracking modes. This feedback mechanism ensures that the appropriate correction method is applied, resolving the contradiction between tracking accuracy and image stability.
3Reliability
If both shake correction and subject tracking are executed simultaneously, then comprehensive correction is achieved, but device complexity increases
Solution Approach 1:
The patent implements periodic evaluation of the subject's movement state through the subject detection unit. Based on this periodic detection, the system alternates between shake correction and tracking modes. This periodic action allows the system to achieve comprehensive correction reliability while maintaining manageable complexity by not running both corrections simultaneously.
4Measurement precision
If the subject detection unit is added to determine subject movement, then tracking precision is improved, but device complexity increases
Solution Approach 1:
The subject detection unit serves multiple functions: it detects the subject's position, determines whether the subject is moving or stationary, and provides this information to the control unit for mode switching. This multi-functionality improves tracking precision while minimizing the increase in device complexity by making one component perform multiple tasks.
Data Source
AI summary
An imaging support device that supports imaging performed by an imaging apparatus includes an acquisition portion that acquires an in-image shift amount between a predetermined position in a captured image obtained by capturing an imaging region by an imaging element and a position of a target subject image showing a target subject, and a focal length of the imaging apparatus, a derivation portion that derives a movement amount required for moving the position of the target subject image to a specific position by a position adjustment portion which adjusts the position of the target subject image in the captured image, based on the in-image shift amount acquired by the acquisition portion, the focal length acquired by the acquisition portion, and information related to a pixel interval of pixels in the imaging element, and an output portion that outputs the movement amount derived by the derivation portion.