等梯度图 isogradient map
梯度图像 gradient image
方向梯度直方图 Histogram of oriented Gradients ; HOG ; Histogram of Oriented Gradient
边缘梯度图 edge gradient map
梯度方向直方图 HOG ; Histogram of Oriented Gradient ; gradient orientation histogram
梯度直方图 PHOG ; HOG ; Histogram of gradient ; Histogram of Oriented Gradient
塔式梯度方向直方图 PHOG
大气电势梯度变化图 electrogram
为了消除噪声残留，引入了平滑系数与限制强度系数对梯度图作阈值化处理。
In order to remove the residual noise which can not be smoothed by filter, the smoothing coefficient and constrain coefficient were used to threshold the gradient image.
首先，运用同样的梯度图，然后用软轻共混模式，在50％的 不 透明性。
Start by applying the same gradient map as before using a soft light blending mode at 50 per cent opacity.
即首先从原始图像中提取人脸器官梯度图，并建立多姿态知识模型和多姿态模板；
At first, a face organ grads image is extracted from the original image, and multi-pose knowledge models and the multi-pose face templates are set up.
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