feret meaning in Chinese
费雷
Examples
- 16 phillips p j , wechsler h , huang j , rauss p j . the feret database and evaluation procedure for face - recognition algorithms . image and vision computing , 1998 , 16 : 295 - 306 . 17 martinez a m , benavente r . the ar face database
在这一框架下，人脸图像中所有可能的区域都被看作某种特征，这样就可以通过某种选择机制选择出若干个这种特征，继而集成起来以获得更好的识别效果。 - In this paper , the contrast of original image is enhanced by nonlinear transformation based on the characteristics of grain image ; after comparing several methods of threshold segmentation and analyzing their performance and applicability on grain image , the adaptive threshold segmentation based on gradient image is presented ; the noise of binary image is reduced with morphological filter , the hollow in binary image is filled in and a recognition algorithm is designed to remove agglomerate particle ; on the basis of mathematical morphology two methods are adopted to segment agglomerate grains that are not agglomerated tightly ; the parameters of size and shape , perimeter , area , diameter , complexlity , longest feret diameter , shortest feret diameter etc , are extracted . this technique is applied in measurement of pearl powder ' s particle size
本文根据粒度图像的特点，采用非线性对比度增强处理改善颗粒显微图像的对比度；对多种阈值分割方法进行比较，分析了它们的性能和用于粒度图像的适用性，在此基础上提出了一种基于梯度图像的动态阈值分割方法；对获取的颗粒二值图像进行形态滤波和空洞填充，设计了识别算法去除凝聚体；对重叠不太严重的粘结颗粒采用了两种基于数学形态学的分割算法；提取了周长、面积、粒径、复杂度、最长feret径、最短feret径等大小和形状特征参数，对珍珠粉等粉体粒度进行了测量。 - At the surface of the pollen grains there are three types of aperturates , including three porates type , three colpates type and three porate - colpates type ; and four types of sculpture , namely , reticulate , striate , striate - reticulate and verrucate . the upper epidermal cells of the leaves of 12 species plants are detected with hpias - 1000 image analytic system through the treatment of binarization , and the experimental methods are proved stable . the results indicated that the waviness of the anticlinal walls ( sfc ) and the ratio of the feret ' s diameter ( slf ) of the epidermal cells of the middle lamina in the third node of leaves starting from the lowerest part of the stem have a relative constant range and could distinguish from each other . oieanolic acid , l , 5 , 8 - trihydroxy - 3 - methoxyxanthone and swertiamarin are separately detected on the tlc , and the different chromatogram of various plants can be considered as characters of identification . the contents of oleanolic acid in 12 species of plants are determinated by hplc , but among the different plants and botanical organs their contents are different , and the highest content in flowers
本文对川鄂产獐牙菜属药用植物资源进行了野外调查、标本采集和鉴定，对12种干燥药材的性状进行了描述，提供了可以鉴别的特征。通过扫描电子显微镜观察的12种本属药用植物的花粉粒均为单粒花粉，萌发孔有3孔型， 3沟型和3孔沟型三种类型；表面纹饰包括网状纹，条状?网状纹，条状纹和瘤状纹四种类型。用hpias ? 1000高清晰度彩色病理图文分析系统对叶片上表皮细胞作图像分析，并进行方法学研究，结果表明，同种植物茎上第3节叶片中段主脉和第1侧脉之间叶上表皮细胞垂周壁弯曲程度sfc值和细胞纵、横向直径的比值slf值，种间有显著差异，每种都有相对恒定范围值。 - ( 3 ) firstly detectes the waviness of the anticlinal walls ( sfc ) and the ratio of the feret ' s diameter ( slc ) of the epidermal cells in the leaves of 11 species , and studies the methodology , then give out two conclusion : a . epidermal cells in the place between middle and first side vein of the lamina on the third kont starting from ground have the most stable microscopic characters
( 3 )首次采用计算机图像分析“ hpias ? 1000高清晰度彩色病理图文分析系统”测定了獐牙菜属11种药用植物叶上表皮细胞垂周壁弯曲程度( sfc )和细胞纵横直径比( slf ) ，并进行了方法学研究，得到以下结论：茎上第3节叶片中段主脉与第一侧脉之间上表皮细胞形态最稳定。