Automatic Camera Selection via Eye Gaze Tracking
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Solution Overview
Problem
Users of electronic devices with multiple cameras must manually switch between front and rear cameras, often selecting the wrong default camera, which can lead to inconvenient and suboptimal camera usage during video calls or image capture.
Innovation Solution
An electronic device with a camera selection and control module that automatically selects and adjusts cameras based on the user's eye gaze direction and context, using a combination of eye gaze tracking and natural language processing to determine the appropriate camera for capturing images or video.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual camera switching is implemented, then users can select different cameras, but the operation becomes inconvenient and time-consuming
Solution Approach 1:
The system automatically selects and switches between cameras based on eye gaze tracking and context analysis, eliminating the need for manual user intervention. The device serves itself by autonomously determining which camera (front or rear) should be active based on where the user is looking and the current communication context.
Solution Approach 2:
The system performs preliminary camera selection based on predicted user intent through eye gaze tracking before the user actually needs to capture an image or video. By anticipating the user's desired camera based on gaze direction, the system prepares the correct camera in advance, reducing switching time.
2Ease of operation
If default camera is automatically selected, then switching is simplified, but the wrong camera may be selected reducing reliability
Solution Approach 1:
The system continuously monitors eye gaze direction and communication context as feedback signals to dynamically adjust camera selection. By incorporating real-time feedback from multiple sensors (eye tracking, microphone, processor), the system verifies its camera selection decisions and can correct mistakes, improving reliability while maintaining automatic operation.
Solution Approach 2:
The system uses a multi-functional approach by combining eye gaze tracking, context analysis, and communication state monitoring to make camera selection decisions. This universal method works across different scenarios (video calls, photo capture, different communication apps) to reliably determine the correct camera regardless of the specific situation.
3Adaptability or versatility
If multiple rear cameras with different lenses are provided, then imaging versatility is improved, but device complexity increases
Solution Approach 1:
The camera system is segmented into multiple specialized rear cameras with different lens types (wide-angle, telephoto, macro) to handle specific imaging scenarios. Each camera module is optimized for particular functions, allowing the device to achieve high versatility while managing complexity through modular segmentation rather than a single complex camera system.
Solution Approach 2:
The system dynamically switches between different camera modules based on real-time eye gaze tracking and context analysis. Rather than requiring all cameras to be simultaneously controllable through complex interfaces, the system dynamically activates only the appropriate camera for the current situation, reducing operational complexity while maintaining versatility.
Data Source
AI summary
An electronic device, a method and a computer program product for selecting an active camera from among a front facing camera and at least one rear facing camera. The method includes capturing, via a front facing camera, an image stream containing a face of a user and determining, via a processor, an eye gaze direction of the user based on an image retrieved from the image stream. The eye gaze direction corresponds to a location where the user is looking. The method further includes in response to determining that the user is looking away from a front surface of an electronic device and towards a direction within a field of view of the at least one rear facing camera, selecting, as an active camera, a corresponding one of the at least one rear facing cameras with a field of view containing the location to which the user is looking.