second derivatives operator
网络释义专业释义
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二阶微商算子 - 引用次数：4
By the reason of characteristic on statistics of images, we gave a face searching and locating algorithm based on the second derivatives operator. We obtain the position of face by calculating the change of projection curve using the second operator.
该方法计算人脸在两个投影方向上的统计特征，使用二阶微商算子估计投影曲线斜率的变化，进而找出人脸的外接矩形，判断头部在图象中的位置。
参考来源 - 视频对象运动分析与人脸检测试验系统
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原声例句
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So here I've written for the hydrogen atom that deceptively simple form of the Schrodinger equation, where we don't actually write out the Hamiltonian operator, but you remember that's a series of second derivatives, so we have a differential equation that were actually dealing with.
这里我写出了,氢原子薛定谔方程的,最简单形式，这里我们实际上,没有写出哈密顿算符,但是请记住那你有，一系列的二次导数,所有我们实际上会处理一个微分方程。
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