Camera Image Stabilization Ratio Control for Peripheral Blur
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing camera systems face challenges in achieving uniform image stabilization across the central and peripheral portions of an image, particularly when tilt correction is involved, due to differences in image blur amounts caused by central and peripheral projection methods and eccentric distortions, leading to residual blur in the peripheral portion.
Innovation Solution
A control apparatus and method that dynamically adjusts the image stabilization ratio between optical image stabilization (OIS) and image sensor stabilization (IIS) based on the specific blur amounts in the central and peripheral portions, and electronically corrects trapezoidal distortions, optimizing the stabilization process to minimize residual blur.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single image stabilizing ratio is set for both central and peripheral portions, then the stabilization is simple to control, but the peripheral portion remains blurred more than the central portion
Solution Approach 1:
The patent applies local quality by dividing the image into central and peripheral portions with different stabilization requirements. The control unit calculates separate stabilization ratios for each region based on their respective blur amounts, allowing each part of the image to receive optimized stabilization treatment rather than a uniform approach
2Manufacturing precision
If tilt correction is performed with a fixed stabilization ratio, then the trapezoidal distortion can be corrected, but proper tilt correction cannot be performed when different stabilization ratios are needed for central and peripheral portions
Solution Approach 1:
The patent implements dynamics by making the stabilization ratio adjustable and adaptive rather than fixed. The control unit dynamically determines different stabilization ratios for central and peripheral portions based on detected blur amounts, allowing the system to adapt to varying stabilization needs across different image regions while maintaining tilt correction capability
Data Source
AI summary
A control apparatus for use in a camera system that includes a first correction member provided on one of an image pickup apparatus and a lens apparatus detachable from the image pickup apparatus, and a second correction member provided on the other of the image pickup apparatus and the lens apparatus includes a memory storing instructions, and a processor configured to execute the instructions to control image stabilization using first control configured to provide image stabilization based on a first correction ratio between image stabilization using the first correction member and image stabilization using the second correction member and to electronically correct a trapezoidal distortion in an image blur, or second control configured to provide image stabilization based on a second correction ratio between image stabilization using the first correction member and image stabilization using the second correction member without electronically correcting the trapezoidal distortion in an image blur.