Entry Wang:2004:SST from jgraphtools.bib

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BibTeX entry

@Article{Wang:2004:SST,
  author =       "Chung-Ming Wang and Nen-Chin Hwang",
  title =        "A Stratified Sampling Technique for an Ellipse",
  journal =      j-J-GRAPHICS-TOOLS,
  volume =       "9",
  number =       "1",
  pages =        "13--22",
  year =         "2004",
  CODEN =        "JGTOFD",
  ISSN =         "1086-7651",
  ISSN-L =       "1086-7651",
  bibdate =      "Sat Dec 04 10:50:51 2004",
  bibsource =    "http://www.math.utah.edu/pub/tex/bib/jgraphtools.bib",
  URL =          "http://www.acm.org/jgt/papers/WangHwang04/",
  abstract =     "We present an efficient stratified sampling technique
                 for an ellipse. Our technique provides extensions of
                 previous work for sampling a disk with low distortion;
                 it works for both polar and concentric maps between a
                 square and an ellipse. The mapping preserves adjacency
                 and fractional area, and does not require any numerical
                 computation. As in the previous work, the concentric
                 map demonstrates better performance. Our technique has
                 proven useful in realistic image synthesis using Monte
                 Carlo direct lighting and Monte Carlo path tracing. In
                 conclusion, the proposed technique is stratified,
                 efficient, and feasible for the computer graphics
                 community. Source code is available online.",
  acknowledgement = ack-nhfb,
  journal-URL =  "http://www.tandfonline.com/loi/ujgt20",
}

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