Imaging Device Blur Corrector Motion Compensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing imaging techniques, such as HDR and high-resolution imaging, face challenges in maintaining image quality due to subject motion, leading to reduced resolution and altered angles of view in combined images, as they require longer exposure times and struggle to accurately adjust for subject movement.
Innovation Solution
An imaging device equipped with a blur corrector and movement detection unit that adjusts imaging conditions and moves the imaging element to maintain the subject's position within the frame, reducing motion and preserving the angle of view during multiple exposures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple imaging is performed to expand dynamic range or improve resolution, then image quality is improved, but the imaging time is extended causing subject motion and resolution degradation
Solution Approach 1:
The system performs preliminary detection of subject motion between images before combining them. Based on this detection, it pre-determines the combination ratio for each pixel, allowing rapid combination without extensive post-processing, thus reducing total imaging time while maintaining image quality
Solution Approach 2:
The system changes the combination ratio parameter dynamically based on detected subject motion. By adjusting this parameter according to motion magnitude, the system optimizes the balance between using shorter exposure images (to reduce motion) and maintaining proper exposure, resolving the time-quality contradiction
2Reliability
If combination ratio is changed according to detected motion amount, then motion compensation is achieved, but larger motion areas use shorter exposure images causing improper exposure
Solution Approach 1:
The system applies different combination ratios to different regions (pixels) based on local motion characteristics. By evaluating motion magnitude for each pixel individually, it preserves proper exposure in regions with minimal motion while compensating for motion in regions where it occurs, achieving both motion compensation and exposure accuracy simultaneously
3Manufacturing precision
If alignment and combination are performed according to subject motion detection, then motion artifacts are reduced, but the angle of view becomes narrower
Solution Approach 1:
The system uses image data from multiple shots to create a composite that copies and combines information from different frames. By strategically selecting and weighting pixels from different images based on motion detection, it reconstructs a full-angle-of-view image with reduced motion artifacts, preserving the original angle of view while achieving precise alignment
Data Source
AI summary
An imaging device includes: an imaging element configured to capture an image using a luminous flux passing through an imaging optical system; a blur corrector configured to move a part of the imaging optical system or the imaging element; a movement detection unit configured to detect the motion of a main subject; and an imaging control unit configured to perform control so that multiple imaging is performed on the main subject under different imaging conditions to obtain a plurality of images to be combined. The imaging control unit causes the blur corrector to be driven so that the motion of the main subject detected by the movement detection unit is reduced in the multiple imaging.