Luminance distribution image display device

By adopting high and low spatial frequency image processing technology in the game engine, combined with the game engine and physical lighting simulation program, the inefficient and low resolution problems of direct sunlight intensity edge brightness distribution display in the existing technology are solved, and efficient and accurate brightness distribution image display is achieved.

JP7664756B2Active Publication Date: 2025-04-18TAKENAKA CORP
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Patent Information

Application Number
JP2021082618
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-05-14
Publication Date
2025-04-18
Estimated Expiration
2041-05-14

AI Technical Summary

Technical Problem

The prior art is difficult to efficiently and accurately display the intense edge brightness distribution of direct sunlight in game engines, especially in the low resolution problems caused by discrete light source positions in multi-stage methods.

Method used

The high-space frequency image derivation unit and the low-space frequency image derivation unit are used to process the brightness distribution images of the high-space frequency and the low-space frequency regions respectively, and the two are combined through the synthesis unit, and the direct sunlight and indirect light components are processed respectively using the game engine and the physical lighting simulation program.

Benefits of technology

It realizes efficient and precise display of brightness distribution images in the game engine, especially the strong edge parts of direct sunlight, and improves the display speed and resolution.

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Abstract

To provide a luminance distribution image display device capable of displaying a luminance distribution image with higher speeds and higher precision.SOLUTION: A luminance distribution image display device 10 comprises: a high spatial frequency image derivation unit 11A which derives a luminance distribution image of a high spatial frequency area which is an area where a spatial frequency in a luminance distribution image representing an image indicating the luminance distribution of a space to be displayed is equal to or greater than a predetermined threshold; a low spatial frequency image derivation unit 11B which is configured separately from the high spatial frequency image derivation unit 11A, and derives a luminance distribution image of a low spatial frequency area where the spatial frequency in the luminance distribution image is less than the threshold; a luminance distribution image composite unit 11C which composites the luminance distribution image derived by the high spatial frequency image derivation unit 11A and the luminance distribution image derived by the low spatial frequency image derivation unit 11B; and a display control unit 11D which controls a display unit 15 to display an image obtained from being composited by the luminance distribution image composite unit 11C.SELECTED DRAWING: Figure 2
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Citation Information

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