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31 results on '"Yan, Jianlin"'

23. Research on the General Architecture of Intelligent Manufacturing

Author

Yan Jianlin, Wei Sha, Dong Jingchen, Zang Jiyuan, Meng Liu, Zhou Yuan, and Li Ruiqi

Subjects
business.industry, Computer science, 0502 economics and business, 05 social sciences, 0202 electrical engineering, electronic engineering, information engineering, General Earth and Planetary Sciences, 050211 marketing, 020201 artificial intelligence & image processing, 02 engineering and technology, Architecture, Software engineering, business, General Environmental Science
Published
2018

27. The Research of Real-Time Shadow Rendering Algorithm of Virtual Scenes

Author

Yan Jianlin, Liu Hui, and Jin Hanjun

Subjects
Pixel, business.industry, Computer science, Shadow volume, Perspective (graphical), ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, GeneralLiterature_MISCELLANEOUS, Projection (mathematics), Computer graphics (images), Shadow, Quadtree, Computer vision, Artificial intelligence, Aliasing (computing), business, Shadow mapping, ComputingMethodologies_COMPUTERGRAPHICS
Abstract

Shadow scenes by shadow mapping has long suffered from the problem of under-sampling artifacts due to too little shadow map resolution leading to so-called perspective and projection aliasing. On this issue, we present a new practical real-time shadow mapping algorithm. Firstly we sample the scene from the eye-point on the GPU to get the needed shadow map resolution in different parts of the scene. Then we process the resulting data on the CPU and construct a hierarchical grid structure. Finally we traverse it in quad-tree fashion, shadowing the scene with shadow map pages where needed. The results show that shadow mapping algorithm based on quad-tree is capable of shadowing large scenes by virtually increasing the resolution of the whole shadow map beyond the GPU hardware limit.

Published
2008

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