Dual-View Camera Zoom Alignment for Consistent Face Proportions
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Solution Overview
Problem
In dual-view recording mode, the human face proportions in images captured by front-facing and rear-facing cameras on terminals are often inconsistent, requiring complex user adjustments to align them, which is time-consuming and inefficient.
Innovation Solution
An electronic device adjusts the zoom ratios of front-facing and rear-facing cameras based on detected human face proportions to align them automatically, allowing for quick and simple alignment without manual user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual adjustment of zoom ratios is used to align human face proportions in dual-view recording, then face proportion consistency can be achieved, but operation complexity increases and preparation time is extended
Solution Approach 1:
The system automatically detects face proportions in both front-facing and rear-facing camera views and autonomously adjusts the zoom ratios to align them, eliminating the need for manual user intervention. The device serves itself by computing the proportion difference and applying the necessary zoom adjustment automatically.
Solution Approach 2:
The system continuously monitors the face proportions in both camera views, compares them to identify discrepancies, and uses this feedback to dynamically adjust the zoom ratios. This closed-loop control ensures that the face proportions remain consistent across both views during dual-view recording.
2Manufacturing precision
If manual adjustment of zoom ratios is used to align human face proportions in dual-view recording, then face proportion consistency can be achieved, but preparation time increases
Solution Approach 1:
The system performs face proportion detection and zoom ratio adjustment automatically before the actual recording begins, or even during the transition into dual-view mode. This preliminary automatic alignment ensures that when recording starts, the face proportions are already consistent, eliminating the need for time-consuming manual adjustments during preparation.
Solution Approach 2:
The device autonomously detects and corrects face proportion mismatches without requiring user intervention, significantly reducing the time needed to prepare for dual-view recording. The automatic system computes optimal zoom ratios and applies them instantly, whereas manual adjustment would require the user to iteratively test and refine settings.
3Adaptability or versatility
If different zoom ratios are used for front-facing and rear-facing cameras, then device flexibility is maintained, but face proportion inconsistency occurs
Solution Approach 1:
The system dynamically adjusts the zoom ratios of the front-facing and rear-facing cameras based on real-time detection of face proportions. Rather than using fixed zoom ratios, the system adaptively changes the zoom levels to ensure face proportion consistency while maintaining the ability to use different cameras and lenses as needed.
Solution Approach 2:
The system changes the zoom ratio parameters of the cameras automatically to align face proportions. By adjusting these optical parameters dynamically based on detection results, the system maintains face proportion consistency across different camera configurations while preserving device flexibility.
Data Source
AI summary
A shooting method and a related device. An electronic device may adjust a human face proportion in a rear-facing viewfinder frame using a human face proportion in a front-facing viewfinder frame as a reference, or adjust a human face proportion in a front-facing viewfinder frame using a human face proportion in a rear-facing viewfinder frame as a reference. The electronic device may further implement collaborative zoom of front-facing and rear-facing cameras, to collaboratively zoom in or zoom out pictures in the front-facing and rear-facing viewfinder frames. In this manner, a shooting preparation time can be reduced, and human face proportions in front-facing and rear-facing viewfinder frames in a dual-view recording mode can be adjusted more quickly and simply, to make the human face proportions in the front-facing and rear-facing viewfinder frames consistent, so that a video meeting expectations of a user is obtained.