The algorithm firstly detects the sphere and possible location of a face through integration projection and then realizes the precise location of the face within the sphere.
该算法利用积分投影法预测人脸可能的范围与位置，然后在限定的范围内采用模板匹配的方法定位人脸，从而实现了快速且可靠的人脸定位。
In this paper, a displacement mapping algorithm based on sphere ray-tracing is introduced.
文章提出了一种基于球形光线追踪的位移贴图算法。
Principal directions of a rotational surface were mapped to Gaussian sphere in the algorithm, and principal direction Gaussian image(PDGI) was generated.
该算法对旋转面主方向映射到高斯球面，生成主方向高斯图像（PDGI）。
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