Lenticular Print Simulation for Cross-Talk Assessment
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Solution Overview
Problem
The existing techniques for creating lenticular images fail to accurately predict the visual effect when printed, leading to potential degradation in image quality due to cross-talk between image strips, which is not evident on screen displays but becomes an issue during printing, resulting in user dissatisfaction and wasteful consumption of costly lenticular sheets.
Innovation Solution
A print apparatus and method that includes an image creating means for forming multi-viewpoint images, a printing means for printing on a lenticular sheet, and an image displaying means that simulates the visual effect, including cross-talk, allowing users to assess the image quality before printing by displaying simulation images reflective of the cross-talk caused by overlapping print dots and adjusting parameters like lens pitch and print dot diameter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If print dots are formed side by side to create multi-viewpoint images, then the image can be printed on lenticular sheet, but overlapping print dots at boundaries cause cross-talk and degrade image quality
Solution Approach 1:
The patent applies preliminary action by displaying a simulation image before actual printing to predict and assess cross-talk effects. The simulation shows how print dots will overlap at boundaries, allowing users to evaluate image quality issues beforehand and adjust parameters to minimize cross-talk before committing to the printing process.
2Measurement precision
If simulation displays screen images without printing, then screen display quality is maintained, but optical properties of lenticular sheets are not considered leading to inaccurate visual effect prediction
Solution Approach 1:
The patent uses an intermediary simulation image that bridges the gap between screen display and actual printed output. This simulation incorporates the optical properties of lenticular sheets and print dot characteristics to predict the final visual effect, serving as a mediator that allows accurate assessment without actual printing while accounting for optical factors.
3Productivity
If lenticular sheets are printed without prior quality assessment, then printing process is simple, but costly lenticular sheets are wasted when proper visual effect cannot be obtained
Solution Approach 1:
The patent applies preliminary action by performing a simulation display before actual printing to assess whether the multi-viewpoint image will achieve the desired visual effect. This preliminary assessment allows users to identify potential cross-talk issues and adjust image strip allocation or other parameters beforehand, preventing waste of costly lenticular sheets by avoiding printing of images that would not produce satisfactory results.
4Adaptability or versatility
If image strips are arranged side by side to create multi-viewpoint images, then parallax effect is achieved, but boundaries between adjacent image strips become indistinct due to print dot overlapping
Solution Approach 1:
The patent applies local quality by analyzing and treating different regions of the multi-viewpoint image differently. Specifically, it focuses on boundary regions between adjacent image strips where cross-talk occurs, allowing optimization of image strip allocation and parameters locally at these critical boundaries while maintaining the overall multi-viewpoint parallax effect across the entire 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
Enables users to preemptively assess and minimize image quality degradation due to cross-talk, reducing wasteful consumption of lenticular sheets by simulating the visual effect from various viewing directions and optimizing image strip allocation within the lens pitch, thereby ensuring a more accurate representation of the printed image quality.
Implementation Method 1
by presenting this composite image via a lenticular lens, a parallax is created between the respective images that reach the left and right eyes
Data Source
AI summary
To provide a display technique for presenting to a user a visual effect of an image obtained when printed onto a lenticular sheet in a state that more closely conforms to the actual circumstances, a print apparatus is provided with: an image creating means for creating a multi-viewpoint image formed by arranging side by side in sequential order image strips each created from a plurality of mutually different original images; a printing means for printing the multi-viewpoint image by forming side by side print dots made of a recording material on a lenticular sheet having a lenticular lens; and an image displaying means for displaying a simulation image simulating the multi-viewpoint image seen via the lenticular lens; the image displaying means displaying a simulation image visually reflective of cross-talk arising due to overlapping of the print dots at a boundary between the mutually adjacent image strips.