Dual-Camera Image Stabilization for In-Camera VFX Blur Control
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Solution Overview
Problem
Existing technologies fail to appropriately address image stabilization when a camera operator holds the VFX camera, leading to image blur issues in video captured for in-camera VFX, particularly in the viewpoint detection camera.
Innovation Solution
An image blur control apparatus and method that detect the position and orientation of a first image capture apparatus using a second image capture apparatus, generating a video for display on a background, and controlling image stabilization in the second apparatus based on stabilization in the first apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a camera operator holds the VFX camera to increase flexibility, then ease of operation is improved, but image stabilization deteriorates due to body motion
Solution Approach 1:
The system uses detection cameras to continuously monitor the position and orientation of the VFX camera, providing real-time feedback information. This feedback is then used to generate correction data that compensates for body motion, allowing the main camera to maintain stable imaging even when held by an operator.
Solution Approach 2:
Detection cameras serve as intermediary devices that indirectly measure the motion of the VFX camera. Instead of directly controlling the VFX camera's stabilization, the system uses these auxiliary cameras to detect motion and generate correction data, which then acts as a mediator to achieve stabilization.
2Reliability
If image stabilization is applied independently to both the VFX camera and viewpoint detection camera, then image stabilization is improved for each camera, but coordination between cameras deteriorates causing unnatural motion mismatches
Solution Approach 1:
The system merges the stabilization control of multiple cameras by using the VFX camera's stabilization data as the primary reference. The detection cameras' stabilization is coordinated with this primary data, combining their functions to achieve unified motion correction across all cameras rather than independent stabilization.
Solution Approach 2:
The stabilization data from the VFX camera serves multiple functions: it stabilizes the main video feed and simultaneously serves as the reference for stabilizing the viewpoint detection camera. This multi-functional use of the primary stabilization data ensures coordinated motion correction across all imaging devices.
Data Source
AI summary
An image blur control apparatus detects a position and orientation of a first image capture apparatus that captures an image of a subject with a video displayed on a display apparatus as a background, by using a video obtained from a second image capture apparatus different from the first image capture apparatus. The image blur control apparatus generates a video to be displayed on the display apparatus in accordance with the detected position and orientation and controls image stabilization in the second image capture apparatus based on image stabilization in the first image capture apparatus in a case where the image stabilization is effective in both of the first image capture apparatus and the second image capture apparatus.