View-Dependent Object Rendering With Adaptive Voxel Resolution

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Solution Overview

Problem

Increasing the resolution of target objects in virtual space images to enhance detail leads to increased drawing and communication loads.

Innovation Solution

Adjusting the size of unit volume elements based on color distribution and distance from the viewer's viewpoint, using a non-linear contrast sensitivity function to determine appropriate resolution, thereby reducing the number of elements and data transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the resolution of the target object is increased by reducing the sizes of unit volume elements, then the detail of the target object appearance is improved, but the drawing load and communication amount increase

Engineering Contradiction:

Improveresolution of target objectVSAvoiddrawing load

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies local quality by varying the size of unit volume elements based on their spatial position and importance. Unit volume elements closer to the viewpoint or representing more important regions are made smaller (higher resolution), while those farther away are made larger (lower resolution). This creates a non-uniform resolution distribution that optimizes both detail representation and processing efficiency.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent implements dynamics by making the size of unit volume elements adaptive rather than fixed. The sizes are dynamically adjusted based on distance from the viewpoint, allowing the system to optimize resolution distribution according to the viewing conditions and reduce unnecessary processing of distant or less important regions.

Inventive Principle:

Principle #15Dynamics

2Manufacturing precision

If the resolution of the target object is increased by reducing the sizes of unit volume elements, then the detail of the target object appearance is improved, but the communication amount increases

Engineering Contradiction:

Improveresolution of target objectVSAvoidcommunication amount

Core Design Contradiction:

Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The patent reduces communication amount by applying local quality optimization - transmitting detailed information (small unit volume elements) only for regions that require high resolution, while using coarser representations (larger unit volume elements) for distant or less important regions. This significantly reduces the total data volume that needs to be communicated.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent applies partial action by selectively providing high resolution only where necessary (near the viewpoint or for important regions) rather than uniformly across the entire scene. This partial optimization achieves satisfactory overall quality while minimizing communication overhead.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentEP3848908B1Information processing device, information processing method, and program

Publication Date: 2026.02.18 SONY INTERACTIVE ENTERTAINMENT LLC

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AI summary

Provided is an information processing device that acquires appearance information associated with an appearance of a target object to be a target of drawing, and determines a parameter associated with a resolution of the target object and used in the drawing of a condition of the target object as viewed from a given viewpoint, on the basis of a color distribution on the surface of the target object and information associated with a distance from the viewpoint to the target object, the color distribution being specified from the acquired appearance information.