stroke density

Doctors have known for years that HDL, or high-density lipoprotein, protects against heart attacks and stroke, probably by cleaning up the bad low-density lipoprotein cholesterol, known as LDL.

医生多年前已经知道高密度脂蛋白（HDL）可以通过清除不良的低密度脂蛋白胆固醇（即已知的LDL）来保护对抗心脏病发作和心肌梗塞。

Weight Polar Direction Stroke Density Feature in Character Recognition

字符识别中的加权极向笔道密度特征

Study on Electron Density of Lightning Return Stroke

闪电回击通道的电子密度研究

The Relationship Between Low Density Lipoprotein Cholesterol and Risk Factor of Stroke

低密度脂蛋白胆固醇与脑卒中危险因素的关系

In text localization module, taking full advantage of character stroke attribute, the algorithm introduces the stroke operator which has strong response to text regions; subsequently, performs strokes extraction, stroke density filtration and region decomposition to obtain candidate text boxes.

在文本定位模块中，充分利用字符的笔画属性，引入对字符区域有很强响应的笔画算子；经笔画提取，密度过滤，区域分解得到候选文本行。