Ray tracing method and apparatus based on attention for dynamic scenes
AssigneeSiliconArts Technology US Inc.
InventorWoo Chan Park
Life of this patent
Estimating the term…
Abstract
A visual attention-based ray tracing method includes: determining whether each sampling pixel hits a primary ray during a process of generating a first image by rending a specific scene at a first resolution; and performing selective rendering repeatedly on candidate pixels existing between the sampling pixels during a process of generating a second image by rendering the first image at a second resolution higher than the first resolution through adaptive adjustment of a threshold due to hit frequencies of neighboring pixels.
Claims13
A visual attention-based ray tracing method for a dynamic scene, the method comprising:
- identifying whether a primary ray for each sampling pixel hits a static scene or a dynamic scene constituting a specific scene during a process of generating a first image by rendering the specific scene at a first resolution;
- and
- performing selective rendering repeatedly on candidate pixels existing between the sampling pixels during a process of generating a second image by rendering the first image at a second resolution higher than the first resolution through adaptive adjustment of a threshold,
- wherein the adaptive adjustment of the threshold comprises:
- identifying a first hit frequency of neighboring sampling pixels hitting the dynamic scene and a second hit frequency of neighboring sampling pixels hitting the static scene;
- reducing the threshold when the first hit frequency is higher than the second hit frequency;
- and
- increasing the threshold when the first hit frequency is lower than the second hit frequency.
A visual attention-based ray tracing device for a dynamic scene, the device comprising:
- a first rendering unit determining the occurrence of hitting of a primary ray for each sampling pixel on a static scene or a dynamic scene during a process of generating a first image by rendering a specific scene at a first resolution;
- and
- a second rendering unit performing selective rendering repeatedly on candidate pixels existing between the sampling pixels during a process of generating a second image by rendering the first image at a second resolution higher than the first resolution through adaptive adjustment of a threshold,
- wherein the second rendering unit comprises:
- a hit frequency detection module detecting a first hit frequency of neighboring pixels for a specific candidate pixel hitting the dynamic scene and a second hit frequency of neighboring pixels hitting the static scene;
- and
- a threshold adjustment module adjusting a reference threshold by reducing the reference threshold when the first hit frequency is higher than the second hit frequency, and increasing the reference threshold when the first hit frequency is lower than the second hit frequency.
Dependencies are inferred from the claim text.