Hansong Zhang

Title: Innovations by Hansong Zhang

Introduction

Hansong Zhang is an accomplished inventor based in Mountain View, CA. He has made significant contributions to the field of computer graphics and terrain visibility. His innovative approach has led to the development of a unique method for visibility culling of terrain, which enhances graphical rendering efficiency.

Latest Patents

Hansong Zhang holds a patent for a "Method, system, and computer program product for visibility culling of terrain." This patent describes a method where a height field is perspective modulated, and an occlusion height field is generated based on an orthographic height propagation of the perspective modulated height field. The graphics data is then culled based on the generated occlusion height field. The process includes texturing and blending operations to accelerate perspective modulation, utilizing a perspective modulation disk to modulate the height field along radial slices from a viewpoint. Additionally, the generation of the occlusion height field can be hardware-accelerated, further enhancing performance.

Career Highlights

Hansong Zhang is currently associated with Vicarious Visions, Inc., where he applies his expertise in graphics and terrain rendering. His work has been instrumental in advancing the capabilities of computer graphics, particularly in the area of visibility culling.

Conclusion

Hansong Zhang's innovative contributions to computer graphics, particularly through his patented methods, demonstrate his significant impact on the field. His work continues to influence advancements in graphical rendering technologies.