Synthetic Image Depth Animation for Clear Viewing-Angle Shifts
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Solution Overview
Problem
Existing synthetic-image devices struggle to provide animations that are easy to comprehend and compare to expected animation behaviors, particularly in security documents, due to complex reference behaviors and physical limitations in depth.
Innovation Solution
The method and device provide a focusing element array and an image layer that utilizes at least three different depths. The method and device provide a method for manufacturing a synthetic image device that utilizes at a respective focusing element array and an image layer that utilizes at a respective focusing element array and an image layer that utilizes at least three different depths. The method and device provide a synthetic image device which enables a viewing-angle dependent animation of perceived stereoscopic depth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If multiple abruptly changing synthetic images are provided to create animation, then animation effect is achieved, but the animation becomes difficult to comprehend and compare to reference behavior
Solution Approach 1:
The patent applies dynamics by making the synthetic image change gradually rather than abruptly. The image objects are designed to transform continuously as the viewing direction changes, creating a smooth animation effect that is easier to comprehend. This resolves the contradiction by maintaining the animation effect while improving comprehensibility through continuous transformation rather than discrete jumps.
Solution Approach 2:
The patent utilizes parameter changes by varying the perceived depth of image objects as a function of viewing direction. By continuously changing the depth parameter rather than switching between fixed depth states, the animation becomes smoother and more natural, resolving the contradiction between achieving animation effect and maintaining comprehensibility.
2Ease of manufacture
If the synthetic image device is made thin and flat, then manufacturing is simplified, but depth perception becomes unnatural and difficult to comprehend
Solution Approach 1:
The patent resolves this contradiction by adding a perceived depth dimension through optical manipulation. While the physical device remains thin and flat for easy manufacturing, the image objects are designed to appear at different depths along the viewing direction, creating a three-dimensional visual effect that enhances naturalness and comprehensibility without compromising device simplicity.
3Ease of operation
If the number of successively changing images is increased to improve smoothness, then animation smoothness improves, but geometrical resolution requirements become unachievable
Solution Approach 1:
The patent resolves this contradiction by implementing continuous dynamic transformation of image objects rather than using discrete sequential images. This approach achieves smooth animation without requiring a large number of distinct image elements, thereby avoiding the need for unachievable geometrical resolution while maintaining animation smoothness.
Solution Approach 2:
The patent uses a single set of image objects that transform continuously rather than requiring multiple copies of images at different states. This reduces the complexity and resolution requirements compared to providing numerous discrete image slices, resolving the contradiction between smoothness and manufacturable resolution.
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 solution allows for a clear and unambiguous viewing-angle dependent animation of perceived stereoscopic depth, making it suitable for security documents by ensuring the animation is easy to comprehend and compare to a reference behavior.
Implementation Method 1
A typical synthetic-image device presents an array of small focusing elements and image objects created in different planes of a thin foil. The focusing element may be different kinds of lenses, apertures or reflectors.
Implementation Method 2
The focusing element may be different kinds of lenses, apertures or reflectors. An image layer is provided with image objects. The image layer is provided relative to the array of focusing elements such that when the device is viewed from different angles, different parts of the image objects are enlarged by the focusing elements
Implementation Method 3
The synthetic image appears to float above the surface or appears to be present below the surface. Such an effect is supported by providing a synthetic image that changes according to parallax properties of an image being present above or below the surface.
Data Source
Figure 1A~1C
Figure 2
Figure 3A
AI summary
A method for manufacturing a synthetic image device comprises providing (S10) of a focusing element array. An image layer is arranged (S20) in a vicinity of a focal distance of focusing elements, whereby a synthetic image composed of enlarged portions of the image layer becomes perceivable for a viewer. Theimage layer comprises an array of image cells, each associated with a respective focusing element. The step of arranging (S20) the image layer comprises creation (S22) of a respective image object within each respective one of said image cells. The image objects are such that an animation becomes perceivable, comprising a series of synthetic images perceivable in-series as the viewing direction changes. The image objects are such that each one of the synthetic images of the series is perceivable at a respective perceivable depth,changing between the synthetic images of the series of synthetic images.