Image Rotation via Touch Gesture on Portable Displays
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Solution Overview
Problem
Current image processing on portable devices, such as cell-phones and personal digital processors, requires complex and time-consuming key presses to perform operations like image rotation, which cannot be simplified without increasing device size.
Innovation Solution
An image processing method that allows a single input gesture, such as a stream of drawing, to rotate an image displayed on a device, identifying the input as a non-closed region and using the drawing direction to perform a 90-degree clockwise rotation around the image's geometric center.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional key press methods are used for image rotation, then the device structure can remain simple, but the operation becomes complex and time-consuming
Solution Approach 1:
The patent replaces the mechanical key press system with a touch-based gesture system. Users can rotate images by drawing gestures directly on the display screen, eliminating the need for physical key presses and reducing operational steps while maintaining device structural simplicity.
Solution Approach 2:
The patent introduces a gesture recognition intermediary layer between user input and image rotation execution. The system recognizes drawing gestures (such as circular motions or specific patterns) and automatically translates them into image rotation commands, simplifying the user interaction flow.
2Ease of operation
If more keys are added to simplify operations, then ease of operation improves, but device size increases
Solution Approach 1:
The patent makes the display screen serve multiple functions: it acts as both the image display area and the input interface for gesture-based operations. This eliminates the need for separate physical keys, allowing the device to maintain a compact form factor while providing simplified image processing operations.
Solution Approach 2:
The patent transitions from one-dimensional key press input to two-dimensional gesture input on the display surface. Users can perform operations by drawing gestures across the screen area, effectively utilizing the spatial dimension of the display to encode multiple input commands without adding physical components.
3Ease of operation
If traditional multi-step input is used, then input precision can be maintained, but operation complexity increases
Solution Approach 1:
The patent extracts the essential input action from complex multi-step sequences and condenses it into a single gesture. Instead of requiring multiple key presses or menu navigations, the system recognizes a single drawing gesture and executes the corresponding image operation directly, reducing input process complexity while maintaining operational precision.
Data Source
AI summary
An image processing method is provided. The image processing method is used for using a stream of drawing as an input on an image displayed on a display. The image processing method includes steps of identifying the input as a non-closed region input and performing an image rotation operation.