基于微分算子的边缘检测法在基因芯片图像识别中的应用

一种基于梯度算子和拉普拉斯算子检测医学基因芯片荧光数字图像边缘的方法．数字图像经过图像增强等预处理以后，突出了我们感兴趣的数字图像特征，根据数字图像灰度变化的趋势，用灰度变化的一阶导数(梯度算子)检测图象中的边缘区域；用灰度变化的二阶导数确定图像边缘的中心位置．最后根据某些预定的准则把满足这些准则的象素组成一条边缘．     

Medical application of diffraction enhanced imaging in mouse liver blood vessels

Neovascularization is correlative with many processes of diseases, especially for tumor growth, invasion, and metastasis. What is more, these tumor microvessels are totally different from normal vessels in morphology. Therefore, observation of the morphologic distribution of microvessels is one of the key points for many researchers in the field. Using diffraction enhanced imaging （DEI）, we observed the mirocvessles with diameter of about 40 μm in mouse liver. Moreover, the refraction image obtained from DEI shows higher image contrast and exhibits potential use for medical applications.     

基于数学形态学的圆钢端部图象处理

本介绍了一种基于数学形态的图像分割方法在圆钢端部图像处理中的应用，此方法在图像目标相互重叠的情况下有较好的分割效果。     

石墨炉AAS法测定催化剂中微量铂和钯

在石油炼制工艺中,铂和钯常用来作为催化重整催化剂,加氢催化剂,一氧化碳助燃剂的活性组元,需要灵敏的分析方法。本文提出用石墨炉原子吸收(GFAAS)法测定催化剂中微量铂和钯的分析方法。用混合酸溶解样品,双十二烷基二硫代乙二酰胺(DDO)为络合剂,氯化亚锡为还原剂,在