Multi-Touch Release Trigger for Stable Image Capture
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Solution Overview
Problem
Users face difficulties in capturing sharp images due to the inconvenience of pressing a fixed photographing function button, especially when using electronic devices with cameras, as hand sizes and grasping methods vary, leading to device shaking and poor image quality.
Innovation Solution
An electronic device equipped with a sensor module and processor that senses multi-touch inputs and activates the camera upon release of at least one touch input, allowing for image capturing without the need to press a physical button, and switches between cameras based on device movement and angle variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed photographing function button is used, then the device structure is simple, but it is inconvenient for users with different hand sizes and grasping methods, leading to device shaking and poor image quality
Solution Approach 1:
The patent inverts the traditional button-press triggering mechanism by using touch release (lifting fingers) instead of touch press to trigger image capturing. This allows users to capture images naturally without needing to locate and press a specific button, especially when arms are outstretched for selfies. The release of multi-touch input serves as the capture trigger, eliminating the need for a fixed photographing button and reducing device shaking.
Solution Approach 2:
The system uses the user's natural grasping and holding actions themselves as the triggering mechanism. By detecting when the user releases their grip (releases touch input) after holding the device for positioning, the system automatically triggers image capturing. This self-service approach converts the user's natural interaction patterns into the capture trigger, eliminating the need for separate button presses and improving ease of operation.
2Adaptability or versatility
If the user presses the photographing function button while stretching their arm, then selfies can be captured, but the device shakes and image quality deteriorates
Solution Approach 1:
The patent inverts the triggering mechanism from active button pressing to passive release detection. When users stretch their arms for selfies, they naturally hold the device with multiple fingers. The system detects this multi-touch state and waits for release. When the user releases their grip (lifts fingers) after positioning the device, the capture is triggered automatically. This eliminates the need to press a button during the outstretched arm position, preventing device shaking and improving image sharpness while maintaining selfie versatility.
3Ease of operation
If a one-touch input is used for zooming, then the operation is simple, but it is difficult to distinguish between zooming intent and capture intent
Solution Approach 1:
The patent segments the touch interaction into distinct phases: a first touch input for positioning/zooming operations, followed by a second touch input (or release) for capture triggering. By requiring a sequence of touch events rather than a single ambiguous gesture, the system can clearly distinguish between zooming intent (first touch moved) and capture intent (second touch or release). This segmentation resolves the ambiguity while maintaining operational simplicity through natural touch sequences.
Solution Approach 2:
The system uses periodic or sequential touch actions to differentiate intents. A single continuous touch is interpreted as positioning/zooming, while a release or a subsequent touch action triggers capture. This temporal sequencing of touch events creates clear intent recognition: the pattern and timing of touch interactions reveal whether the user wants to zoom or capture, eliminating the ambiguity of one-touch operations.
Data Source
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AI summary
An electronic device and a method of capturing an image by an electronic device are provided. The electronic device includes a housing, a camera; a display configured to display an image captured through the camera; a memory configured to store the image; a sensor module configured to sense a multi-touch input; and a processor configured to execute an image capturing function using the camera, in response to at least one touch input of the sensed multi-touch input being released.