Illumination Distribution Correction for Real-Time Object Rendering

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Solution Overview

Problem

Physically-based rendering techniques for simulating object appearance in real-time are computationally expensive and often produce inaccurate results due to discrepancies between ambient light information from spherical images and actual illumination conditions.

Innovation Solution

An information processing apparatus and method that corrects illumination intensity distributions using main illumination information acquired from actual space images, adjusting the simulation results to better match real-world lighting conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If physically-based rendering is used to simulate object appearance, then the realism of simulation results is improved, but the computation cost increases

Engineering Contradiction:

Improverealism of simulation resultsVSAvoidcomputation cost

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent pre-calculates illumination intensity distributions in all normal directions and stores them in advance. During real-time simulation, these pre-computed illumination data are retrieved and applied directly, avoiding the need for complex real-time physics-based rendering calculations while maintaining visual realism.

Inventive Principle:

Principle #10Preliminary action

2Ease of operation

If spherical images are used to acquire ambient light information, then the ease of operation is improved, but the manufacturing precision of illumination simulation deteriorates

Engineering Contradiction:

Improveease of operationVSAvoidillumination simulation accuracy

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The patent introduces an illumination intensity distribution map as an intermediary between the spherical image and the rendering system. This map processes and corrects the ambient light information from spherical images, compensating for inaccuracies in main illumination representation while maintaining the ease of using spherical camera data.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12633005B2Information processing apparatus, non-transitory computer readable medium, and information processing method

Publication Date: 2026.05.19 FUJIFILM BUSINESS INNOVATION CORP

AI summary

An information processing apparatus includes a processor configured to: acquire information on main illumination from an illumination intensity distribution of an image that results from imaging an actual space; and control an expression of a thing using an illumination intensity distribution that is corrected with the information on the main illumination.