Mostly , traditional arithmetic of image edge detection distill edge using gradient maximum or zero - crossing which base on gray discontinuousness on edge . they are affected easily by noise 传统的边缘检测算子大都是基于边缘的灰度不连续性利用梯度局部最大值或二阶导数过零点来检测边缘，容易受噪声干扰。
2.
Postmodernism does not mainly mean a historical period , but signifies a kind of mode of thinking . the mode of thinking emphasizes denial , eccentricity , fragment , uncertainty , discontinuousness , and multiplicity 后现代哲学所讲的“后现代” ( postmodern )主要不是指“时代论”意义上的一个历史时期，而是表征一种思维方式。
3.
The stress distributed unevenly around the indent and mainly concentrated on the area near - by the tip of the indent . the stress distribution was discontinuous at the interface between the ti - dlc film and the substrate . it ' s just the discontinuousness of stress distribution that protected substrate from breakage 模拟结果表明,纳米压痕试验中应力在压痕周围呈不均匀分布,应力集中分布在压头尖端所对应的膜的区域,并在膜与基体的界面上产生间断,应力间断有效的保护了基体。
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Comparing to polynomial regression and linear multi - variant regression , support vector regression can not only enhance the generalization ability but also avoid the discontinuousness in spectrum , and the spectrum distance distortion from converted voice to target voice are reduced to 33 . 29 % and 35 . 24 % respectively 与多项式回归和线性多变量回归相比，支持向量回归既提高了泛化能力又避免了频谱不连续性，使转换语音与目标语音的频谱距离失真分别减少了33 . 29 %和35 . 24 % 。
