本文在介绍经典变化检测方法的基础上，提出了在直接检测方法中加入灰度自动分类的方法，并进一步对M典型变换做改进。
This paper introduces some classical approaches and some other ways such as in direct change detection adding the gray level classification, mending the m canonical transformation method.
演播室背景是经典条文图案和林肯纪念碑。 奥普拉和她的嘉宾们花了很长时间讨论局势的变化。
In front of a classical backdrop with columns and an image of the Lincoln Memorial, Oprah and her guests spent their hour gushing over the change in regime.
普拉哈拉德和加里·哈默尔曾在哈佛商业评论上关于企业核心竞争力进行了经典分析后，人们普遍认识到企业自身核心竞争优势将随产品和市场的变化而消失。
C.K Prahalad and Gary Hamel's HBR classic core Competence of the Corporation made popular the notion that knowing and mastering core business factors can be leveraged across products and markets.
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