【24h】

Systematic Sampling in Image-Synthesis

机译:图像合成中的系统采样

获取原文
获取原文并翻译 | 示例

摘要

In this paper we investigate systematic sampling in the image-synthesis context. Systematic sampling has been widely used in stereology to improve the efficiency of different probes in experimental design. These designs are theoretically based on estimators of 1-dimensional and 2-dimensional integrals. For the particular case of the characteristic function, the variance of these estimators has been shown to be asymptotically N~(-3/2), which improves on the O(N~(-1)) behaviour of independent estimators using uniform sampling. Thus, when no a priori knowledge of the integrand function is available, like in several image synthesis techniques, systematic sampling efficiently reduces the computational cost.
机译:在本文中,我们研究了图像合成环境中的系统采样。系统采样已在立体学中广泛使用,以提高实验设计中不同探针的效率。这些设计理论上是基于一维和二维积分的估计量。对于特征函数的特殊情况,这些估计量的方差被证明是渐近N〜(-3/2),这改善了使用均匀采样的独立估计量的O(N〜(-1))行为。因此,当没有可用的被积函数先验知识时,如在几种图像合成技术中一样,系统采样有效地降低了计算成本。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号