policy gradient estimation 梯度估计
density gradient estimation 密度梯度估计
performance gradient estimation 性能梯度估计
tropospheric gradient estimation 对流层梯度改正
They have some same processing steps, like camera motion compensation, image gradient estimation, image border extraction, intra-frame segmentation, inter-frame segmentation, combination of intra-frame segmentation and inter-frame segmentation results.
从实现步骤来说，都包括摄像机运动补偿，图像的梯度估计，图像的边界提取，帧内图像分割和帧间图像分割，帧内和帧间分割结果的合并这几步。
参考来源 - 基于MPEGSecondly, this paper implements several gradient estimation methods in existence, and then improves them trough building a potential function.
其次实现了现有几种梯度估算算法,并通过构造势函数对它们进行改进。
参考来源 - 基于势函数梯度估算在体绘制中的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
Then by utilizing the features of this model an online optimization algorithm that combines policy gradient estimation and stochastic approximation is derived.
然后利用这种模式的特点，在线优化算法相结合的策略梯度估计及随机逼近而得。
The trackability limitation of current gradient algorithm is discussed. A new algorithm, named variable parameter gradient estimation algorithm with local polynomial approximation is proposed.
本文分析了梯度辨识算法跟踪时变系统的缺点，提出了一种新的基于局部多项式逼近的变参数梯度估计算法。
During volume rendering, gradient will be used both on the procedure Classification and Shading. So rapidity and accuracy of gradient estimation is important to high quality rendering algorithm.
体绘制流程中，梯度在数据分类和明暗计算中都要用到，因此快速准确的梯度估算对高质量的体绘制算法至关重要。
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