Projected Image Correction Through Acceleration Sensing
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Solution Overview
Problem
Existing projector image correction methods, such as keystone and four-corner corrections, require manual button operations on remote controls, which are time-consuming and lack intuitive adjustments, making it difficult for users to achieve accurate rectangular projections.
Innovation Solution
A projected image correction system using a portable electronic device with an acceleration sensor and processor to intuitively correct projected images by transmitting motion sensing data and correction parameters to the projector, simplifying the adjustment process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual button operations on remote control are used for image correction, then the projector can be controlled with simple hardware, but the correction process becomes time-consuming and lacks intuitive adjustment
Solution Approach 1:
The patent replaces the mechanical button-pressing system with a motion sensing system using an acceleration sensor. Users physically move the portable electronic device (smartphone, tablet, or laptop) in the desired correction direction, and the acceleration sensor detects this motion to automatically generate correction commands, eliminating the need for repeated button clicks and providing intuitive control.
Solution Approach 2:
The patent introduces a portable electronic device as an intermediary between the user and the projector. This device captures motion data through its acceleration sensor, processes the data to determine correction parameters, and transmits the corrected commands to the projector, thereby bridging the gap between intuitive physical movement and precise image correction.
2Manufacturing precision
If multiple correction parameters (H, V, R) are adjusted through button operations, then comprehensive correction is achieved, but the operation complexity increases and requires multiple attempts
Solution Approach 1:
The system performs self-service by automatically calculating the appropriate correction parameters based on the detected motion of the portable electronic device. The acceleration sensor data is processed to determine the required horizontal (H), vertical (V), and rotation (R) correction amounts, eliminating the need for users to understand or manually adjust multiple parameters through trial and error.
Solution Approach 2:
The patent changes the input parameter from discrete button presses to continuous motion data. The acceleration sensor captures multi-dimensional motion information, which is then converted into appropriate correction parameters (H, V, R), allowing the system to achieve comprehensive correction through a single intuitive gesture rather than multiple separate adjustments.
3Measurement precision
If four-corner correction method is used with corner selection and displacement adjustment, then precise corner control is achieved, but the number of required operations increases significantly
Solution Approach 1:
The patent makes the portable electronic device serve multiple functions: it acts as the remote control, the motion sensor, the parameter calculator, and the communication interface all in one device. By utilizing the acceleration sensor of a common portable electronic device, the system eliminates the need for separate corner selection and displacement adjustment operations, achieving corner correction through the device's natural motion.
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
The system allows for rapid and intuitive correction of projected images, reducing the need for repetitive button clicks and enhancing user experience by providing real-time adjustments based on motion sensing data.
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
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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 in sequence; 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.