3D Display Viewpoint Region Control for Processing Load Reduction

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Solution Overview

Problem

Conventional display devices that achieve motion parallax in all three-dimensional directions using the ray-of-light regeneration method are complex and prone to producing unnatural images due to high processing loads, making it difficult to reduce the emission load while maintaining stereoscopic image recognition.

Innovation Solution

An information processing apparatus that specifies the observer's viewpoint position, sets a region for stereoscopic viewing, and controls the display device to emit a ray-of-light group only within this region, preventing stereoscopic viewing from outside the set area, thereby reducing processing load and maintaining image quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a device regenerates rays of light in all three-dimensional directions using the ray-of-light regeneration method, then motion parallax is achieved in all directions, but the device configuration becomes complex and processing load increases

Engineering Contradiction:

Improvemotion parallax coverageVSAvoiddevice configuration

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent divides the three-dimensional space into multiple discrete viewpoint positions. Instead of regenerating rays in all directions continuously, the system segments the viewing space into specific observation points where ray regeneration is performed. This segmentation reduces the complexity of the device configuration while maintaining motion parallax effects for observers at these segmented positions.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies partial action by regenerating rays of light only for specific viewpoint positions rather than for all possible directions. This partial regeneration approach reduces the processing load and simplifies device configuration while still providing sufficient motion parallax for typical viewing scenarios, accepting that not all possible viewpoints are covered.

Inventive Principle:

Principle #16Partial or excessive action

2Adaptability or versatility

If a device regenerates rays of light in all three-dimensional directions, then complete stereoscopic coverage is achieved, but processing load increases and may cause unnatural images

Engineering Contradiction:

Improvestereoscopic viewing coverageVSAvoidprocessing load

Core Design Contradiction:

Adaptability or versatilityVSPower

Solution Approach 1:

The patent applies local quality by concentrating ray regeneration resources on specific viewpoint positions rather than distributing them uniformly across all directions. Each localized viewpoint receives appropriate stereoscopic processing, while other areas are not processed. This approach reduces overall processing load while maintaining natural image quality for observers at the targeted local positions.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system performs partial ray regeneration only for selected viewpoint positions within the three-dimensional space. This partial action approach reduces processing load significantly compared to omnidirectional regeneration, while still providing adequate stereoscopic coverage for typical viewing positions, accepting that some areas may not receive full processing.

Inventive Principle:

Principle #16Partial or excessive action

3Adaptability or versatility

If ray regeneration is performed in all directions, then omnidirectional stereoscopic viewing is achieved, but device complexity and processing requirements become unmanageable

Engineering Contradiction:

Improveviewing direction coverageVSAvoidray regeneration system

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the continuous viewing space into discrete viewpoint positions. Instead of implementing a complex omnidirectional ray regeneration system, the device is configured to handle specific segmented positions. This segmentation simplifies the device complexity while providing adequate coverage for multiple viewing directions through the segmented approach.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11785203B2Information processing apparatus, information processing method, and program

Publication Date: 2023.10.10 SONY GROUP CORP

AI summary

An information processing apparatus (30) includes: a specification unit (331) that specifies a viewpoint position of an observer of a display device (10) that reproduces rays of light that have been sent out by a three-dimensional object; a setting unit (332) that sets a region that makes it possible for the observer to stereoscopically view the three-dimensional object, by using, as a reference, the viewpoint position that has been specified by the specification unit (331); and a display control unit (333) that performs control to cause the display device (10) to emit a ray-of-light group that makes it possible to stereoscopically view the three-dimensional object from an inside of the region that has been set by the setting unit (332), and makes it impossible to stereoscopically view the three-dimensional object from an outside of the region.