Head-Mounted 3D Display with Local Resolution Scaling

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing head-mounted displays struggle to display high-resolution three-dimensional images at high framerates due to limited processor performance, leading to reduced visibility and potential motion sickness.

Innovation Solution

An image display system that selectively increases the resolution of a specific part of a three-dimensional image viewed by a user, using a head-mounted display with a selection unit, detection unit, and resolution increasing unit to maintain a predetermined framerate.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the entire three-dimensional image is rendered at high resolution, then image quality is improved, but processor load increases making it difficult to maintain high framerate

Engineering Contradiction:
Improveimage resolutionVSAvoidframe rate
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent applies local quality by rendering only the selected part-to-view region at high resolution while rendering other regions at lower resolution. The selection unit identifies a specific region of interest in the three-dimensional image, and the rendering process allocates high computational resources only to this selected region, thereby maintaining high image quality where needed while reducing overall processor load to sustain high frame rates.

Inventive Principle:
Principle #3Local quality

2Manufacturing precision

If processor resources are allocated to render high-resolution images, then image quality is improved, but the system cannot maintain predetermined framerate with limited processor performance

Engineering Contradiction:
Improveimage resolutionVSAvoidframe rate stability
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The patent segments the three-dimensional image into a selected part-to-view region and other regions. The rendering system processes these segments differently, applying high-resolution rendering only to the selected region while using lower resolution for the remainder. This segmentation allows the system to meet the predetermined framerate requirement by reducing the total number of pixels requiring high-resolution processing, while still delivering high image quality in the viewer's area of interest.

Inventive Principle:
Principle #1Segmentation

3Area of stationary object

If the display area is increased to improve visibility, then viewing experience is improved, but the device size and processing requirements increase

Engineering Contradiction:
Improvedisplay areaVSAvoidprocessing requirements
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent applies local quality by concentrating high-resolution rendering resources on a selected part-to-view region rather than uniformly rendering the entire display area at high resolution. This allows the system to provide excellent visibility and image quality in the viewer's focused area while maintaining lower resolution in peripheral areas, thereby reducing overall processing requirements and device complexity while still achieving an improved viewing experience.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12506851B2Image display system
Publication Date: 2025.12.23 CANON KK
  • US12506851B2 patent drawing
  • US12506851B2 patent drawing
  • US12506851B2 patent drawing

AI summary

The present invention provides an image display system in which images can be displayed at at least a predetermined framerate even with limited processor performance. The image display system having a head-mounted display capable of displaying a three-dimensional image, the image display system includes a selection unit for selecting a viewing object desired by a viewer from the three-dimensional image, a detection unit for detecting a part to view corresponding to the viewing object selected by the selection unit, and a resolution increasing unit for increasing a resolution of the part to view that has been detected, wherein the head-mounted display displays the three-dimensional image in which the resolution of the part to view has been increased at at least a predetermined framerate.