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	Boundary emphasis transfer function generation based on HSL color space
	Xiao Li; Jianhuang Wu; Shengzhou Luo; Xin Ma
	2011
会议名称	International Conference on Graphic and Image Processing, ICGIP 2011
会议地点	Cairo, EGYPT
英文摘要	Direct volume rendering has been received much attention since it need not to extract geometric primitives for visualization and its performance is generally better than surface rendering. Transfer functions, which are used for mapping scalar field to optical properties, are of vital importance in obtaining a sensible rendering result from volume data. Though traditional color transfer functions are in RGB color space, HSL color space that conveys semantic meanings is more intuitive and user-friendly. In this paper, we present a novel approach aims to emphasize and distinguish strong boundaries between different materials. We achieve it by using data value, gradient magnitude and dimension of the volumetric data to set opacity. Then, through a linear map from data value, gradient magnitude and second derivative to hue, saturation and lightness respectively, a color transfer function is obtained in HSL color space. Experimental tests on real-world datasets indicate that our method could achieve desirable rendering results with revealing important boundaries between different structures and indicating data value's distribution in the volume by using different colors. 漏 2011 Copyright Society of Photo-Optical Instrumentation Engineers
收录类别	EI
语种	英语
内容类型	会议论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/3344]
专题	深圳先进技术研究院_集成所
作者单位	2011
推荐引用方式 GB/T 7714	Xiao Li,Jianhuang Wu,Shengzhou Luo,et al. Boundary emphasis transfer function generation based on HSL color space[C]. 见:International Conference on Graphic and Image Processing, ICGIP 2011. Cairo, EGYPT.

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