中国科学院重庆绿色智能技术研究院机构知识库

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	A novel all-frequency spherical harmonic lighting technique for 5G networks
	Li, Weiguang1,3; Wei, Wang2; Shi, Mingquan1
	2018-05-01
摘要	Next generation mobile network has the capacity to realize virtual reality because it can provide low latency, high data rate and low error rate. In virtual reality, instant rendering needs more computing power, but 5G terminal device computing power is relatively weak. Illumination precomputed technology, such as Spherical Harmonic Lighting, provides a mean for rendering scene with limited computing power. For the restrictions on efficiency and storage, Spherical Harmonic Lighting is preferred to capture low-frequency illumination information but missing on high-frequency illumination information. The precomputed illumination dataset will expand rapidly if more high-frequency information is preserved, which prevents its transmission on 5G network. In this paper, we have proposed a method based on wavelet decomposition, that can improve Spherical Harmonic Lighting sampling efficiency and capture more frequency illumination information with adaptive Spherical Harmonic band index. This method can preserve more frequency illumination with relatively small precomputed dataset..
关键词	Sampling Precomputed radiance transfer Real-time rendering Spherical harmonic basic function Wavelet importance sampling
DOI	10.1016/j.compeleceng.2018.03.049
发表期刊	COMPUTERS & ELECTRICAL ENGINEERING
ISSN	0045-7906
卷号	68页码:252-261
收录类别	SCI
WOS记录号	WOS:000437999300019
语种	英语