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A study on computation optimization method for three-dimension scene light field radiation simulation in visible light band
Li, Ligang; Ni, Wei; Ma, Xiaoshan; Yang, Zhen; Meng, Xin; Shen, Feifei; Li, LG (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Elect & Informat Technol Space Syst, Beijing 100190, Peoples R China.
Department空间技术部
Source PublicationHIGH-PERFORMANCE COMPUTING IN GEOSCIENCE AND REMOTE SENSING VI
2016
Language英语
ISSN0277-786X
ISBN978-1-5106-0418-6; 978-1-5106-0419-3
AbstractThe simulation of high accuracy three-dimension (3D) scene optical field radiation distribution can provide the input for camera design, optimization of key parameters and testing of various imaging models. It can benefit for reducing the strong coupling between the imaging models and scene simulation. However, the simulation computation is extremely large and the non-optimization computing method can't performed efficiently. Therefore, a study was carried out from the algorithm optimization and using high-performance platform to accelerate the operation speed. On the one hand, the visibility of scene was pre-computed which include the visibility from the light source to each facet in scene and the visibility between facets. The bounding box accelerate algorithm was adopted which can avoid a lot of time-consuming computation of occlusion in the light field radiation simulation process. On the other hand, since the 3D scene light field radiation simulation was obtained by a large number of light approximation, the algorithms can be divided blocks and processed parallelly. The GPU parallel framework was adopted to realize the simulation model of light field radiation in visible band. Finally, experiments were performed. The result shown the proposed method was more efficient and effective compared with the non-optimization method.
KeywordComputation Optimization Visible Light Band Light Field Radiation Simulation Three-dimension Scene
Conference NameConference on High-Performance Computing in Geoscience and Remote Sensing VI
Conference Date2016-09-28
Conference PlaceEdinburgh, SCOTLAND
Indexed ByEI ; CPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5796
Collection空间技术部
Corresponding AuthorLi, LG (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Elect & Informat Technol Space Syst, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Li, Ligang,Ni, Wei,Ma, Xiaoshan,et al. A study on computation optimization method for three-dimension scene light field radiation simulation in visible light band[C],2016.
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20161000703.pdf(413KB)会议论文 开放获取CC BY-NC-SAApplication Full Text
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