级联阴影通过分割可视区域逐步部分变大，并使用相同的大小，在每个阴影贴图。
Cascaded shadows work by dividing viewing area into progressively larger portions and using the same size shadow map on each.
通过分析复杂背景中字符存在的特点，针对快速分割和识别的应用需求，提出了一种在色调上将阀值法和区域生长法相结合的分割方法。
This paper analyzes the characteristics of the characters under complex background to propose a segmentation method combining the threshold method and the region-growing method for the hue.
然后提出了一种新颖的棒材中心区域标记方法避免了初始过分割标记，在此基础上又提出了强、弱粘连概念。
Then a novel method for computing the center area of the bar is introduced to avoid initial over-segmentation markers and the concept of strong touching, and the weak touching is put forward.
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