Multi-Camera Image Preview Composition via Face Detection
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Solution Overview
Problem
Electronic devices with multiple integrated camera modules often underutilize capabilities when capturing two-dimensional images, as only one camera module is activated, leaving others unused.
Innovation Solution
A method and apparatus that acquire and process images from multiple camera sensors, including a first image sensor and a second image sensor, to detect and display a body part image, such as a user's face, in conjunction with a background image, using processing circuitry and face detection algorithms, allowing for simultaneous preview and composition adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If only one camera module is activated for capturing two-dimensional images, then the device complexity is reduced, but the utilization of camera modules is insufficient
Solution Approach 1:
The patent combines images from multiple camera modules (front and rear cameras) to create a composite preview image. The processing circuitry acquires a first picture from the first image sensor and a second picture from the second image sensor, then merges them by detecting a body part (e.g., face) in the second picture and creating a third picture that integrates both camera inputs, thereby fully utilizing multiple camera modules for enhanced functionality.
2Productivity
If multiple camera modules are activated simultaneously, then the utilization of camera modules is improved, but the processing complexity increases
Solution Approach 1:
The processing circuitry extracts the body part (e.g., face) from the second picture acquired by the second image sensor. This extraction step isolates the important element that needs to be positioned, allowing the system to efficiently composite this extracted body part onto the first picture from the first image sensor without processing the entire second picture, thus improving processing efficiency.
Solution Approach 2:
The system performs preliminary detection of the body part in the second picture before final composite image creation. By detecting and extracting the body part in advance, the processing circuitry prepares the necessary elements for efficient composition, reducing the computational burden during the final image generation and display stages.
3Manufacturing precision
If the body part detection and composition is performed, then the image composition accuracy is improved, but the processing time increases
Solution Approach 1:
The patent employs automated processing circuitry to perform body part detection and composition operations that would otherwise require manual user adjustment. The processing circuitry automatically detects the body part in the second picture, determines its position, and composites it onto the first picture, replacing manual mechanical adjustment with automated electronic processing to achieve both accuracy and efficiency.
Data Source
AI summary
A method for use in an electronic device is provided, including: acquiring a first picture through a first image sensor; acquiring a second picture through a second image sensor; detecting, by a processing circuitry, an image of a body part in the second picture; creating a third picture based on the image of the body part; and displaying the first picture together with the third picture as a preview image.