Automultiscopic Display Viewpoint Tracking Sub-Multipixel Rendering

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Solution Overview

Problem

Conventional automultiscopic displays face high computational, bandwidth, and power requirements due to the need to simultaneously render multiple 3-D views, making them unsuitable for battery-powered devices and lacking user-specific content delivery.

Innovation Solution

An automultiscopic display system that uses viewpoint tracking to detect and render viewpoint-specific images by selectively coloring sub-multipixels within a multipixel display zone, reducing unnecessary computational and power usage, and allowing user-specific content delivery through identification of individual users.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional automultiscopic displays simultaneously render multiple 3-D views in each direction, then multiple viewing angles are provided, but computational costs and power requirements become prohibitively high

Engineering Contradiction:

Improvemultiple viewing anglesVSAvoidpower requirements

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The system performs preliminary viewpoint detection using eye tracking technology before rendering images. By detecting where users are looking in advance, the system can pre-determine which viewpoints need to be rendered and prioritize those views, avoiding the need to simultaneously render all possible viewpoints and significantly reducing computational and power requirements

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Instead of rendering all 256 possible viewpoints simultaneously, the system renders only the specific viewpoints that are currently being viewed by users. This partial action approach renders fewer views than the maximum capability, but exactly matches user needs, thereby reducing power consumption while maintaining the adaptability to provide multiple viewing angles

Inventive Principle:

Principle #16Partial or excessive action

2Reliability

If conventional automultiscopic displays render all viewpoints simultaneously, then parallax-lag is eliminated, but computational complexity increases significantly

Engineering Contradiction:

Improveparallax-lag eliminationVSAvoidcomputational complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system detects user eye positions and intended viewpoints in advance before image rendering. This preliminary detection allows the system to prepare and render only the necessary viewpoints that users will actually view, maintaining smooth parallax transitions while avoiding the computational complexity of rendering all possible viewpoints simultaneously

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts which viewpoints are rendered based on real-time eye tracking data. As users move their eyes and heads, the system continuously updates the set of active viewpoints to match current user positions, creating a dynamic rendering approach that maintains parallax reliability without static pre-rendering of all viewpoints

Inventive Principle:

Principle #15Dynamics

3Use of energy by stationary object

If viewpoint tracking is implemented to reduce rendering workload, then power consumption decreases, but device complexity increases due to tracking components

Engineering Contradiction:

Improvepower consumptionVSAvoidtracking components

Core Design Contradiction:

Use of energy by stationary objectVSDevice complexity

Solution Approach 1:

The eye tracking components serve multiple functions: they detect user viewpoints for selective rendering, identify individual users for personalized content delivery, and track user attention for adaptive image generation. This multi-functionality justifies the added device complexity by providing multiple benefits beyond just reducing rendering workload

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Adaptability or versatility

If user identification is added for personalized content, then user-specific content delivery is achieved, but processing requirements increase

Engineering Contradiction:

Improveuser-specific content deliveryVSAvoidprocessing power

Core Design Contradiction:

Adaptability or versatilityVSPower

Solution Approach 1:

The system performs user identification and viewpoint detection in advance before rendering personalized content. By preliminarily identifying which user is viewing and from what angle, the system can efficiently retrieve and render the specific personalized content needed for that user-viewpoint combination, avoiding unnecessary processing of content for other users or angles

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS10127716B2Automultiscopic display with viewpoint tracking and scalability for multiple views

Publication Date: 2018.11.13 GOOGLE LLC

AI summary

In one aspect, a computer-implemented method for efficiently rendering and displaying multiple images on an electronic device having an automultiscopic display may generally include detecting, with the electronic device, a position of at least one eye relative to the automultiscopic display. The automultiscopic display may include an array of multipixels, with each multipixel including a plurality of sub-multipixels. In addition, the method may include rendering a viewpoint-specific image for each detected eye position and selectively coloring at least one sub-multipixel within one or more of the multipixels such that colors associated with the rendered viewpoint-specific image are only displayed within a multipixel display zone defined for each of the one or more multipixels with respect to each detected eye position.