Touchscreen Projected Image Correction Through Direct Coordinate Dragging
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Solution Overview
Problem
Existing projector image correction methods require cumbersome manual key adjustments and cursor operations, making the process inefficient and unintuitive.
Innovation Solution
A projected image correction system using a portable electronic device with a touch-sensitive display to intuitively adjust projector images by generating and transmitting touch-input data to the projector for precise image correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional four-corner correction method with remote control directional keys is used, then image correction function is achieved, but operation complexity increases and correction efficiency decreases
Solution Approach 1:
The patent replaces the mechanical remote control directional key system with a touch screen interface. Users directly touch and drag corner positions on the projected image displayed on the touch screen, substituting repeated directional key presses with intuitive touch gestures. This reduces operational steps and time required for image correction.
Solution Approach 2:
The patent creates a digital copy of the projected image on the touch screen display, allowing users to interact with a replicated version of the image rather than the physical projector controls. The touch screen displays the projected image and allows direct manipulation of corner points, eliminating the need for OSD menus and directional navigation.
2Measurement precision
If manual key adjustment is used for each corner, then precise coordinate adjustment is achieved, but operation complexity increases
Solution Approach 1:
The patent merges the selection of corner points and the adjustment of coordinates into a single touch-drag operation. Instead of separately selecting a corner and then adjusting its coordinates through multiple key presses, users directly touch and drag the corner to its target position, combining multiple operations into one intuitive gesture.
Solution Approach 2:
The touch screen serves as an intermediary between the user and the projector's image correction system. It displays the projected image and receives touch inputs, then translates these into coordinate adjustments for the projector. This intermediary interface simplifies the interaction by providing direct visual feedback and intuitive controls.
Data Source
AI summary
A projected image correction system and method and a non-transitory computer-readable recording medium are provided. A processor of a portable electronic device is configured to perform the following steps: activating a display to display a function interface including multiple function icons; obtaining multiple original coordinates of multiple adjustable points corresponding to a projected image of a projector; arranging positions of the function icons on the function interface so that positional relationships of the function icons respectively correspond to positional relationships of the adjustable points in the projected image; in response to first touch-drag operation on the first function icon, generating first touch-input data for each unit of time; calculating first updated coordinate of first adjustable point corresponding to the first function icon based on the first touch-input data; and transmitting the first updated coordinate to the projector, so that the projector correspondingly adjusts the first adjustable point of the projected image to the first updated coordinate.