等五类 meaning in Chinese

gamde、d、e

Aiming at five kinds of targets from geneva lake which are rock , sand , pebble , grit and sullage , the features we extracted based on the cwt time - frequency matrix are singular values , some parameters of histogram and invariant moment
针对莱蒙湖底的岩石、沙、卵石、砂砾、淤泥等五类目标，文中所提取的特征主要有时频矩阵的奇异值、直方图的有关参数以及不变矩等三类特征。
We designed and made the attraction device to attract agricultural pests , obtained agricultural pests " images with the color camera , processed images based on wavelet analysis . on the basis of these , we emphasized on extracting effective features , put forward recognizing pests " classes with pests " colors and texture features , and succeeded in extracting five efficient features such as color features , wave image edge moments features and so on . then we selected features , inputted into neural network classifier , recognized pattern , presented detection results
本文设计制作了诱捕装置，诱集农田害虫，使用摄像头摄取害虫图像，采用小波分析进行图像处理，在此基础上重点进行了特征提取工作，提出了利用害虫颜色和纹理等特征进行种类识别的观点，并成功提取了彩色特征、小波图像边缘矩特征等五类有效特征，并经特征选择后输入神经网络分类器进行模式识别，最后给出检测结果。