Imaging and Lens-Aware Vertex Mesh Generation for Display Distortion

Solution Overview

Problem

Existing display technologies, such as head-mounted displays (HMDs), suffer from distortion issues when switching lenses or cameras, leading to visually induced motion sickness and a feeling of strangeness due to inconsistent mesh data usage.

Innovation Solution

An information processing apparatus determines the arrangement of a vertex group based on the characteristics of an imaging apparatus and mountable lenses, generating mesh data that adapts to these characteristics to correct distortion and ensure accurate display.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing display technologies use fixed mesh data for displaying videos on HMDs, then the display process is simple, but distortion and visual discomfort occur when switching lenses or cameras

Engineering Contradiction:

Improveadaptability to different lenses and camerasVSAvoidcomplexity of mesh data generation

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-calculating and storing correspondence relationships between vertex group arrangements and lens/camera characteristics before actual video display. The information processing apparatus determines the arrangement of vertex groups in advance based on imaging apparatus characteristics and lens characteristics, then stores this arrangement data for quick retrieval during video playback, eliminating the need for real-time calculations when switching lenses or cameras.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements parameter changes by dynamically selecting different vertex group arrangements based on the specific lens and camera being used. The system changes the arrangement parameters of vertex groups according to the imaging apparatus characteristics and lens characteristics, allowing the mesh data to adapt to different optical parameters without requiring complete remeshing, thus balancing adaptability with computational efficiency.

Inventive Principle:

Principle #35Parameter changes

2Manufacturing precision

If mesh data is generated without considering imaging apparatus and lens characteristics, then the generation process is fast, but display accuracy deteriorates due to distortion

Engineering Contradiction:

Improveaccuracy of mesh dataVSAvoidtime for mesh data generation

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-calculating and storing correspondence relationships between vertex group arrangements and lens/camera characteristics before actual video display. The information processing apparatus determines the arrangement of vertex groups in advance based on imaging apparatus characteristics and lens characteristics, then stores this arrangement data for quick retrieval during video playback, eliminating the need for real-time calculations when switching lenses or cameras.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements dynamics by making the mesh data generation process adaptive rather than static. The system dynamically determines vertex group arrangements based on the specific imaging apparatus and lens characteristics, allowing the mesh structure to flexibly adapt to different optical parameters. This dynamic approach ensures high display accuracy for each specific lens-camera combination while maintaining efficient generation through pre-established correspondence relationships.

Inventive Principle:

Principle #15Dynamics

3Reliability

If the same mesh data is used for all lenses and cameras, then the system is simple to operate, but visual discomfort and motion sickness occur due to inconsistent distortion correction

Engineering Contradiction:

Improveconsistency of display qualityVSAvoidcomplexity of determining vertex arrangement

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements parameter changes by dynamically selecting different vertex group arrangements based on the specific lens and camera being used. The system changes the arrangement parameters of vertex groups according to the imaging apparatus characteristics and lens characteristics, allowing the mesh data to adapt to different optical parameters without requiring complete remeshing, thus balancing adaptability with computational efficiency.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent applies feedback by establishing a systematic correspondence between lens/camera characteristics and optimal vertex group arrangements. The information processing apparatus determines arrangements based on imaging apparatus characteristics and lens characteristics, creating a feedback loop where the system automatically selects the appropriate mesh configuration based on the optical parameters, ensuring consistent distortion correction across different lens-camera combinations.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS12374047B2Information processing apparatus, information processing method, and non-transitory computer-readable storage medium, with determining arrangement of vertex group based on information related to imaging apparatus characteristic and information related to lens characteristic

Publication Date: 2025.07.29 CANON KK

AI summary

An information processing apparatus comprises a determination unit configured to determine arrangement of a vertex group on a basis of first information related to characteristics of an imaging apparatus and second information related to characteristics of a lens that is mountable to the imaging apparatus, and a generation unit configured to generate data of a mesh group based on a vertex group in the arrangement determined by the determination unit.