Dual Camera Subject Detection and Zoom Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Users face difficulties in accurately capturing subjects of interest, such as faces or moving objects, with existing electronic devices, which may inadvertently zoom in on unintended subjects due to automatic subject detection.
Innovation Solution
An electronic device equipped with a processor that uses multiple cameras to detect and zoom in on subjects of interest, such as faces or moving objects, by analyzing image data and satisfying specified size conditions, allowing for high-quality image capture while avoiding unintended subjects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If automatic subject detection and zooming is implemented, then image quality of detected subjects is improved, but unintended subjects may be captured instead of the user's intended target
Solution Approach 1:
The system displays a preview image showing both the wide-angle view and the detected subject area, providing visual feedback to the user. The user can see what the system has detected and confirm or correct the selection before the final image is captured, ensuring the captured subject matches user intent
Solution Approach 2:
The processor acts as an intermediary between automatic detection and final capture. It analyzes the detected subject, determines its size relative to the image, and only triggers zooming when the subject meets size criteria, mediating between automatic detection and user intent
2Measurement precision
If a second camera is used for zooming, then image quality of zoomed subjects is improved, but device complexity increases
Solution Approach 1:
The second camera serves multiple functions: it captures zoomed images when needed and can also function as a regular camera for other shooting scenarios. This multi-functionality justifies the added complexity by maximizing the utility of each component
Solution Approach 2:
Instead of using optical zoom with a single camera (one dimension of adjustment), the system adds a second camera dimension to achieve zoom效果. This dimensional approach allows zooming without mechanical lens adjustments, simplifying the optical path while adding a camera component
3Device complexity
If the first camera is used for both wide-angle and zoomed shots, then device complexity is reduced, but image quality for zoomed subjects deteriorates
Solution Approach 1:
The imaging function is segmented into two specialized cameras: the first camera optimized for wide-angle shots and the second camera optimized for zoomed shots. Each camera can be dedicated to its optimal function, with the processor intelligently selecting which camera to use based on shooting requirements
Data Source
AI summary
An electronic device is provided. The electronic device includes a housing, a display exposed through a first surface of the housing, a first camera exposed through a second surface of the housing that is opposite to the first surface, a second camera exposed through the second surface, a memory storing an image obtained by the first or second camera, and a processor electrically connected with the display, the first camera, the second camera, and the memory. The processor is configured to output a first image obtained by using the first camera on the display and, when an area recognized as a face in the first image has a size satisfying a specified condition, output a second image obtained by using the second camera on the display.