blocking direction meaning in English
闭塞方向
Examples
- Algorithms on fingerprint preprocessing are first studied in unit 3 . point direction image is acquired by using discrete direction method . then block direction image is acquired
采用离散方向法来求取指纹的点方向图，进而用直方图法得到指纹的块方向图。 - These are the primary contents of this paper : first , we adopt the block direction filtering method , the self - adapt two - valued disposing method and moulding board mining method to accomplish the pretreatment of the original fingerprint image
采用块方向图滤波，自适应阈值二值化和模板细化等算法对原始指纹图像进行预处理，去除指纹图像中的噪声点，得到细化的指纹脊线图像。 - We made a deep research on these preprocessing techniques based on comparing kinds of methods and combining the characteristics of fingerprint image , which included the image enhancement by histogram equalization and fourier transform , binarized by using the locally adaptive threshold method , a new gradual image segmentation algorithm based on block direction estimation and morphological methods were also introduced
在比较各种预处理方法并结合指纹图像特点的基础上，研究了指纹预处理的关键技术，包括基于直方图均衡和傅里叶变换方法的指纹图像增强、局部阈值自适应二值化等，并提出了一种新的基于方向图特性和数学形态学的指纹图像分级分割算法。 - Making use of the ridge tracing results , the algorithm can obtain some attributes of the feature points . combining the attributes and the local structural information , it can identify and eliminate the false feature structures , so as to eliminate the false features . ( 3 ) in the matching section , a reference point orientation algorithm based on block direction and its sine component is given at first
前者把8邻域编码技术和查表法引入到纹线跟踪中，提高了纹线跟踪的速度；后者利用纹线跟踪的结果，提取指纹特征点的属性，并结合特征点的局部结构信息，总结出各种伪特征结构的特征，进而对其进行识别和滤除，达到滤除伪特征点的目的。