Expatiates on Color histograms-based methods, a new two-Gaussian model based technique is proposed that is a betterment of twin-comparison method and can detect cuts and gradual transitions, experiment demonstrates it enable to locate boundaries exactly and quickly.
对颜色直方图方法进行了深入的探讨，在利用HSV直方图计算出帧间不连续值的基础上，提出一种基于双高斯模型的能同时检测渐变和突变的方法，此方法是对双边比较法采用固定阈值的一种有效的改进，实验证明可以准确快速地定位镜头边界。
参考来源 - 视频镜头边界检测研究·2,447,543篇论文数据，部分数据来源于NoteExpress
针对这个特点，采用更为细致的双高斯模型来模拟这种分布，并且使用EM算法来获得相应的模型参数。
For this character, to use more fine double Gauss model to simulate the distribution and to use EM principle to get the corresponding model coefficients is a good idea.
两种模型的仿真结果与工艺试验结果比较表明，双椭球形热源模型比高斯热源模型更适合双丝焊的三维有限元分析。
The comparisons between the simulated results of two models and experiments show that double ellipsoidal model is better than Gaussian model on three-dimensional analysis.
本文利用双谱分析方法，提出用非高斯ar模型对雷达目标回波信号进行参数化双谱估计。
With bispectrum analysis, an ar model parametric bispectrum estimation is presented for radar target echoes.
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