Gaze-Based Autofocus for Electronic Device Video Recording
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Solution Overview
Problem
Conventional electronic devices with multiple rear-facing cameras require manual user intervention to adjust camera settings, such as focus and zoom, which can be cumbersome and inconvenient during video recording, especially when the user's gaze direction changes.
Innovation Solution
An electronic device with front and rear cameras that uses eye gaze tracking to automatically adjust camera settings by determining the region of interest on the display and generating optimal camera settings based on the user's eye gaze direction, allowing the rear-facing cameras to focus on the desired area without manual input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual focus control is used, then the user can select the focus area, but the user must use both hands to touch the screen which is cumbersome during video recording
Solution Approach 1:
The system automatically adjusts camera focus and zoom based on the user's eye gaze direction, eliminating the need for manual touch screen interaction. The electronic device serves itself by detecting gaze through the front camera and autonomously controlling the rear camera settings.
Solution Approach 2:
The patent replaces the mechanical touch screen interaction system with an optical-based eye gaze tracking system. Instead of requiring physical contact with the device, the system uses the front camera to capture eye position and translates it into camera control commands.
2Adaptability or versatility
If the user needs to adjust camera settings during video recording, then the focus area can be changed, but manual intervention requires both hands which is inconvenient
Solution Approach 1:
The system automatically adapts camera settings by detecting the user's gaze direction and autonomously adjusting focus and zoom parameters, enabling hands-free operation while maintaining adaptability to user intent.
Solution Approach 2:
The system establishes a feedback loop where the front camera continuously monitors eye gaze direction, and this information feeds back to automatically adjust rear camera settings, creating an adaptive hands-free control mechanism.
3Adaptability or versatility
If multiple rear facing cameras are used, then various focal angles and distances can be captured, but manual selection of focus area is required
Solution Approach 1:
The system automatically manages the complexity of multiple camera options by using eye gaze detection to autonomously select and switch between different rear cameras and their respective focal settings, simplifying the user experience despite the underlying system complexity.
Data Source
AI summary
An electronic device, a method and a computer program product for automatic camera adjustments based on eye gaze tracking. 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 on a display where the user is looking. The method further includes mapping the location on the display to a region of interest (ROI) for focusing a rear facing camera and generating camera settings of the rear facing camera based on the ROI. The method further includes adjusting the rear facing camera using the generated camera settings such that the rear facing camera focuses on the ROI.