Projected Image Correction With Portable Motion Sensing
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Solution Overview
Problem
Existing projector image correction methods, such as keystone and four-corner corrections, require manual button clicks and cursor operations, which are time-consuming and lack user intuitiveness, making it difficult for users to achieve accurate adjustments.
Innovation Solution
A projected image correction system using a portable electronic device with an acceleration sensor and processor to intuitively correct projected images by sensing user motions, calculating parameter correction amounts, and transmitting these to the projector for real-time adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual button clicking and cursor operations are used for image correction, then the projector can achieve image correction functionality, but the operation becomes time-consuming and lacks user intuitiveness
Solution Approach 1:
The patent replaces the mechanical remote control button clicking system with a motion sensing system using an acceleration sensor. Users physically move the portable electronic device to indicate correction direction and magnitude, and the acceleration sensor detects this motion to automatically generate correction parameters, eliminating the need for manual button operations and significantly reducing correction time
Solution Approach 2:
The system enables self-service operation where the portable electronic device automatically senses user motion, calculates the correction parameters, and transmits them to the projector without requiring manual input. The acceleration sensor captures the user's natural hand movements, and the processor automatically converts these movements into precise correction commands, making the entire correction process intuitive and efficient
2Measurement precision
If multiple correction parameters (H, V, R) are adjusted manually, then comprehensive image correction can be achieved, but the user lacks intuitive sense of parameter changes and requires multiple attempts
Solution Approach 1:
The system provides immediate visual feedback by displaying real-time preview images showing the effect of detected motion on the projected image correction. This allows users to intuitively understand how their physical movements translate to image parameter changes, eliminating the need for multiple attempts and enabling precise correction in a single operation
Solution Approach 2:
The patent introduces a preview image display as an intermediary between user motion and final correction parameters. The preview image visually mediates the relationship between physical device movement and image parameter changes, helping users intuitively grasp the effect of each parameter (H, V, R) without requiring technical knowledge of correction mechanics
3Productivity
If repeated button clicks are performed for large extent adjustments, then significant image correction can be achieved, but the operation becomes more time-consuming
Solution Approach 1:
The system dynamically adjusts the correction amount based on the magnitude and speed of detected motion. Larger or faster movements result in proportionally larger correction parameter changes, allowing users to achieve significant corrections in a single swift motion rather than through multiple incremental clicks, thereby dramatically improving correction efficiency
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables quick and intuitive image correction by allowing users to adjust projected images using motion sensing, reducing the need for repetitive button clicks and improving the accuracy and efficiency of image alignment.
Implementation Method 1
the portable electronic device includes an acceleration sensor and a processor. The processor is adapted to receive at least one motion sensing data for the portable electronic device from the acceleration sensor
Data Source
AI summary
Disclosed are a projected image correction system, a projected image correction method and a non-transitory computer-readable recording medium. The projected image correction system includes a projector and a portable electronic device. In the portable electronic device, a user interface with multiple icons is displayed; a function interface corresponding to a selected icon is displayed; in response to operation of the function interface and sensing of an acceleration sensor, the first and the second motion sensing data are respectively received from the acceleration sensor at the first and the second time points sequentially; parameter correction amount corresponding to a function type of the operation is calculated based on the first and the second motion sensing data; and at the second time point, the function type and parameter correction amount are transmitted to the projector, so that the projector adjusts the projected image based on the function type and parameter correction amount.