Pepper's Ghost Illusion Depth via Background Imagery

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Solution Overview

Problem

Holographic projection systems, particularly those using Pepper's Ghost Illusion, face challenges in creating realistic depth perception without requiring extensive physical space behind the transparent screen, and existing technologies struggle with brightness, visibility through atmosphere, and large, heavy projector systems.

Innovation Solution

Implementing a visual depth illusion background using video panel displays or projection techniques that create an optical illusion of depth behind the holographic projection, allowing for reduced physical space requirements and improved image clarity, with options including LED or LCD panels, and optical illusion backdrops that enhance the perception of distance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional Pepper's Ghost Illusion systems use extensive physical space behind the transparent screen to create depth, then the depth perception and realism of the holographic projection is improved, but the system size and space requirements increase

Engineering Contradiction:
Improvedepth perceptionVSAvoidsystem size
Core Design Contradiction:
Measurement precisionVSVolume of moving object

Solution Approach 1:

The patent applies dimensionality change by transitioning from physical depth in the third dimension to optical depth creation through background imagery and projection techniques. Instead of requiring actual physical space behind the screen, the system uses 2D background images and projection methods to simulate 3D depth perception, effectively solving the contradiction between depth perception quality and system size.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent uses copying by creating visual representations of depth through background imagery rather than physical structures. Background images depicting distant landscapes, skies, or environmental elements are projected or displayed behind the holographic projection, copying the appearance of depth without requiring the actual physical space that would naturally provide it.

Inventive Principle:
Principle #26Copying

2Illumination intensity

If large, heavy projector systems are used to create bright holographic projections visible through atmosphere, then the illumination intensity and visibility are improved, but the device complexity and setup requirements increase

Engineering Contradiction:
ImprovebrightnessVSAvoidprojector system complexity
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The patent merges multiple functions into integrated display systems. Instead of using separate large projectors, the system combines LED walls, LCD screens, or projection surfaces with background imagery integration, creating a unified display architecture that achieves brightness and visibility while reducing the complexity of individual components and their setup requirements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent applies parameter changes by transitioning from traditional projector-based illumination to alternative light sources and display technologies with different operational parameters. LED walls and LCD screens operate at different brightness levels and have different atmospheric penetration characteristics compared to traditional projectors, allowing optimization of visibility without requiring large, complex projector systems.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If transparent screens are used to allow viewers to see through to the background, then the visibility and integration with live performers are improved, but the ability to create realistic depth behind the projection is worsened when physical space is limited

Engineering Contradiction:
Improvevisibility through screenVSAvoiddepth perception
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The patent resolves this contradiction by using background imagery and projection techniques that create optical depth in the visual dimension rather than relying on physical depth in space. The transparent screen maintains its visibility function while the simulated depth environment behind it provides the necessary depth perception through carefully designed visual content and projection geometry.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent employs color and luminance variations in background imagery to create depth perception. By using color gradients, brightness variations, and atmospheric perspective techniques in the background display, the system creates the illusion of depth without requiring physical distance behind the transparent screen, thus maintaining both screen transparency and depth perception.

Inventive Principle:
Principle #32Color changes

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 reduces the system size, enhances versatility, and provides a clearer, more effective holographic projection by eliminating the need for extensive depth behind the screen, maintaining image quality even in bright conditions, and hiding projector apparatus.

Implementation Method 1

uses projectors as the light source to send a picture of an object or person with an all-black background onto a flat, high-gain reflection surface (also referred to as a 'bounce'), such as white or grey projection screen

Methodology Applied
Scientific EffectReflection: Reflection

Implementation Method 2

Implementing a visual depth illusion background using video panel displays or projection techniques that create an optical illusion of depth behind the holographic projection

Methodology Applied
Scientific EffectOptical illusion:

Data Source

PatentUS9849399B2Background imagery for enhanced pepper's ghost illusion
Publication Date: 2017.12.26 VNTANA INC
  • US9849399B2 patent drawing
  • US9849399B2 patent drawing
  • US9849399B2 patent drawing

AI summary

Systems and methods herein are directed to providing a visual effect background that may be added behind a transparent holographic projection screen (e.g., of a Pepper's Ghost Illusion system) that provides for greater scenic depth behind the holographic projection, regardless of the amount of actual physical space behind the transparent screen. The background, which may be used for projection-based holographic projections or video panel display projections, generally establishes an optical illusion of depth behind the holographic images (producing a depth perception or “perspective” that gives a greater appearance of depth or distance behind a holographic projection).