Image Processing Apparatus Spatial Frequency Adjustment Printed Matter
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Solution Overview
Problem
When projecting an image onto printed matter, the resulting image can be blurry due to low spatial frequency, leading to suboptimal display quality.
Innovation Solution
An image processing apparatus that adjusts the spatial frequency of input images to generate projection and print data, reducing the difference between the original image and the observed image by superimposing projection light onto printed matter, thereby enhancing display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an image is projected onto printed matter with low spatial frequency, then the projection process is simple and fast, but the resultant image becomes blurry and display quality deteriorates
Solution Approach 1:
The patent applies preliminary action by performing spatial frequency adjustment on the projection image data before the projection process. The image processing apparatus adjusts the spatial frequency of the input image to generate optimized projection image data, ensuring that when the image is later projected onto printed matter, it achieves the desired spatial frequency for clear display without requiring high-resolution projectors. This pre-processing step prevents blurriness while maintaining simple projection hardware.
2Manufacturing precision
If a high resolution projector is used to achieve high spatial frequency projection, then image clarity improves, but the cost and device complexity increase
Solution Approach 1:
The patent applies parameter changes by transforming the spatial frequency parameter of the projection image data through image processing. Instead of relying on hardware with high spatial frequency capabilities (high-resolution projectors), the system uses software-based spatial frequency adjustment to modify the projection image data. This allows standard, lower-cost projectors to achieve the desired image clarity by projecting images with appropriately adjusted spatial frequency characteristics that match the printed matter's resolution capabilities.
3Manufacturing precision
If the spatial frequency of the projected image is increased to improve perceived resolution, then image sharpness improves, but the projection data processing becomes more complex
Solution Approach 1:
The patent applies preliminary action by pre-adjusting the spatial frequency of projection images based on the characteristics of the printed matter and viewing conditions. The image processing apparatus analyzes the input image and applies appropriate spatial frequency adjustment algorithms before projection, creating optimized projection data that achieves high perceived resolution. This pre-processing approach simplifies the overall system by eliminating the need for complex real-time processing during projection, as the spatial frequency optimization is performed in advance.
Data Source
AI summary
An image processing apparatus comprises: a first generation unit that generates approximate light pattern by adjusting spatial frequency of an input image, and generates a projection image data based on the approximate light pattern; and a second generation unit that generates a print image data based on the input image, wherein the second generation unit generates the print image data so that a difference between the input image and an image for observation obtained by superimposing projection light projected based on the projection image data onto a printed matter printed based on the print image data is reduced.