Liu Zhuo and other studies have shown that halo nevus white spot at the CD4+ decrease in the number of T cells, CD8+ T increased, peripheral blood CD4/ CD8ratio decreased and associated with disease activity. 刘茁等研究显示晕痣白斑处CD4+T细胞数量减少,CD8+T增多,外周血中CD4/CD8比值下降,且与疾病活动相关。
In order to deal with the halo and diffuse reflection of the common laser transmitter, the algorithm about laser spot initialization combined the arithmetic average filtering and middle filtering algorithms were raised in this paper. 为解决普通激光发射器的光晕、漫反射等问题,提出了基于算术均值滤波与中值滤波融合的激光光斑初始化处理算法。