Projection Processor Distortion Correction for Aerial Images
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional spatial projection techniques face challenges in accurately projecting images in aerial spaces due to distortions caused by the shape and position of the image forming medium, leading to unintended image formations and reduced visual quality.
Innovation Solution
A processing unit in the projector system obtains information about the first projected image and corrects the second projected image using image correction information, based on deviations detected by an imaging device, to refocus the image correctly on an aerial space image forming section via a light guide optical system, ensuring intended image formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional spatial projection techniques are used to project images in aerial space, then image projection is achieved, but image distortion occurs due to the shape and position of the image forming medium
Solution Approach 1:
The system performs preliminary capture of the first projected image formed on the image forming medium before the actual spatial projection. This captured image information is used to calculate distortion correction data in advance, which is then applied to the second projected image to prevent distortion rather than correct it afterward.
Solution Approach 2:
The system uses an imaging device to capture the first projected image and feeds this information back to the processing unit. The processing unit analyzes the captured image to determine actual distortion patterns and uses this feedback to generate correction data that compensates for the specific geometric distortions caused by the image forming medium's shape and position.
2Adaptability or versatility
If the image forming medium has an arbitrary three-dimensional surface or is positioned at an oblique angle, then projection flexibility is improved, but image distortion and reduced visual quality occur
Solution Approach 1:
The system dynamically adjusts projection parameters based on the captured first projected image. By analyzing the actual image formation on the image forming medium, the system calculates correction data that modifies the second projected image's geometric parameters, allowing the system to adapt to arbitrary three-dimensional surfaces and oblique positioning while maintaining image quality.
3Manufacturing precision
If image correction is applied to compensate for distortion, then image formation accuracy is improved, but processing complexity increases
Solution Approach 1:
The system captures a copy of the first projected image formed on the image forming medium and uses this copied image information to generate correction data. Instead of directly measuring and correcting the physical distortion, the system creates a digital representation of the distorted image and processes this copy to derive the necessary correction parameters for the second projected image.
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
This approach enables high-quality, distortion-corrected spatial projection with enhanced luminance and the ability to project larger images without altering the overall configuration, providing a high visual sense effect even when the projected light is obliquely shined or the image forming medium has an arbitrary three-dimensional surface.
Implementation Method 1
projected light, which is to be refocused on an aerial space image forming section by a light guide optical system
Data Source
AI summary
A projection processor includes a processing unit, and the processing unit obtains information concerning a first projected image which is projected by a projector to be formed on an image forming medium and corrects information concerning a second projected image which is formed on the image forming medium as projected light, which is to be refocused on an aerial space image forming section by a light guide optical system, based on the information concerning the first projected image obtained.