Gaze-Based Camera Control for Stable Focus and Brightness Adjustment
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Solution Overview
Problem
Existing electronic devices that perform focusing and brightness control via line-of-sight input face issues with improper operation and loss of user intent due to unintended switching of focusing targets when the user looks away from the intended object in the live view image.
Innovation Solution
An electronic device equipped with a line-of-sight input unit, acquisition unit, display control unit, first and second operation units, and a control unit that processes multiple operations based on the line-of-sight position, allowing for proper execution of focusing and brightness control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If brightness control by line-of-sight input is added to an electronic device that constantly performs focusing control by line-of-sight input, then the brightness control function is improved, but the focusing control may not be performed properly and the focusing target may be switched contrary to the user's intention
Solution Approach 1:
The patent segments the line-of-sight input function into two distinct modes: focusing control mode and brightness control mode. The control unit determines which mode to activate based on the type of operation input received. When a first operation input (e.g., shutter button press) is detected, the system performs focusing control based on line-of-sight position. When a second operation input (e.g., brightness adjustment button) is detected, the system performs brightness control based on line-of-sight position. This segmentation prevents the focusing target from switching unintentionally during brightness adjustment while maintaining both functions' reliability.
2Ease of operation
If the user looks at an object different from the focusing target to control brightness, then the brightness control is achieved, but the focusing target is switched contrary to the user's intention
Solution Approach 1:
The system employs feedback through operation input detection to determine the user's intended action. The control unit monitors the type of operation input (first operation input for focusing, second operation input for brightness control) and uses this feedback to select the appropriate control mode. This feedback mechanism ensures that when the user looks at a different object to adjust brightness, the system understands this is a brightness control intent rather than a focusing target change intent, thus preserving the original focusing target while achieving the desired brightness control.
3Ease of operation
If the user checks a region other than the focusing target to confirm framing, then the framing verification is achieved, but the focusing target is switched contrary to the user's intention
Solution Approach 1:
The patent implements dynamic mode switching based on operation input type. The system transitions between focusing control mode and brightness control mode dynamically. When the user performs a first operation input (shutter button press), the line-of-sight position determines the focusing target. When the user performs a second operation input (brightness adjustment) while checking framing, the system switches to brightness control mode where line-of-sight position controls brightness adjustment rather than focusing target selection. This dynamic behavior allows the user to check framing regions without unintentionally changing the focusing target, maintaining focusing target stability while enabling easy framing verification.
Data Source
AI summary
An electronic device includes: a line-of-sight input unit configured to receive a line-of-sight input by a line of sight of a user who looks at a display; an acquisition unit configured to acquire an image that is captured by predetermined imaging control; a display control unit configured to display the acquired image on the display; a first operation unit configured to receive a first operation input by the user; a second operation unit configured to receive a second operation input by the user; and a control unit configured to, in a state where the image is displayed, perform setting of the predetermined imaging control on a basis of a line-of-sight position when the first operation input is performed, and perform image processing on the displayed image on a basis of the line-of-sight position when the second operation input is performed.