Projector Geometric Correction via Deformation Amount and Deviation Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing projector technologies require time and effort to perform geometric correction of projected images, especially when projecting onto curved surfaces, as users need to manually adjust correction points, making intuitive and simple correction methods cumbersome.
Innovation Solution
A projector system that allows users to perform geometric correction by designating one-dimensional deformation amounts and deviations through intuitive user interfaces, such as slide bars, enabling simple and clear operations for correcting distortions on curved surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If geometric correction is performed by moving multiple correction points manually, then correction precision can be achieved, but operation time and effort increase significantly
Solution Approach 1:
The correction process is segmented into two independent components: deformation amount (magnitude) and deviation (direction). This segmentation allows users to control each aspect separately through simplified UI elements, reducing the complexity of manual point-by-point adjustment while maintaining correction precision.
Solution Approach 2:
The correction method transitions from two-dimensional point coordinate adjustment to one-dimensional parameter control (deformation amount and deviation). By changing the dimensionality of control from spatial coordinates to abstract parameters, the system reduces operational complexity while preserving correction accuracy.
2Manufacturing precision
If multiple correction points are adjusted individually, then accurate geometric correction is achieved, but operation complexity increases
Solution Approach 1:
The invention extracts the essential correction parameters from complex point coordinate adjustments. By separating deformation amount and deviation as independent controllable parameters, the system removes the complexity of manual point manipulation while retaining the ability to achieve accurate geometric correction.
Solution Approach 2:
The system changes the parameters of control from spatial coordinates of multiple points to two fundamental parameters (deformation amount and deviation). This parameter transformation simplifies the user interface to slide bars and buttons while maintaining correction accuracy through mathematical relationships between parameters and image geometry.
3Adaptability or versatility
If representative point movement is used for correction instruction, then correction can be performed, but intuitive operation becomes difficult for complex distortion
Solution Approach 1:
The control interface transitions from spatial point movement to abstract parameter adjustment (deformation amount and deviation). This dimensional change creates a more intuitive operation mode where users can understand and control correction effects through magnitude and direction parameters rather than complex coordinate transformations.
Solution Approach 2:
The system transforms correction control from positional parameters (point coordinates) to geometric parameters (deformation amount and deviation). This parameter transformation makes the operation more intuitive by directly representing the visual effect users want to achieve, especially for complex distortions on curved surfaces.
Data Source
AI summary
A method of geometric correction can be designated by an intuitive and simple operation, with respect to a projected image projected by a projector. The projector includes a projection unit that projects an image on a projection target, and a correction unit that performs the geometric correction of a projected image projected by the projection unit, based on a deformation amount in a predetermined direction and deviation of the deformation amount in the predetermined direction with respect to the projection target.