查询词典 image dissector

In another room, Pem's brother, Cliff Gardner, dropped the slide between the Image Dissector （ the camera tube that Farnsworth had invented earlier that year ） and a hot, bright carbon arc lamp.

在另一个房间里，徘玛的哥哥——克利夫·加德纳在图像分解器（发恩斯沃思前一年发明的影像管）和碳素弧光灯之间加上了一张幻灯片。

Image dissector was used to determine corresponding density that represents its expression intensity.

利用图像分析仪测定相应密度代表其表达强度。

Dissector operation is based on the principle of electronic emission, where the image incident on the photosensitive surface produces an electron beam whose cross section is roughly the same as the geometry of the tube surface.

解析器是根据电子发射的原理操作的，图像入射在感光面上产生电子束，电子束的交叉部分大致与晶体管表面的几何结构一样。

The drawing was almost identical to the device Farnsworth now called the Image Dissector.

该草图和现在法恩斯沃思称之为析像器的设备几乎一模一样！

Image pickup is accomplished by using electromagnets to deflect the entire beam past a pinhole located in the back of the dissector tube.

图像摄取是通过电磁石把整个光束转，并穿过解析器背后的一个小孔获取。

A different approach to build an imaging detector has been taken by Lick observatory in developing the image-dissector scanner.

另一种成象探测器是黑克天文台所研制的析象管扫描器。

However Farnsworth's "image dissector" camera tube could not store photoelectric charge for the duration of each picture scan: it was insensitive, and it was not the direct antecedent of the mainstream of electronic television, as Zworykin's "iconoscope" camera and "kinescope" high vacuum receiver CRT were.

然而法恩斯沃思的&形象解剖&摄像管无法储存光电收费期限每张图片扫描：这是不敏感的，它不是直接先行主流的电子电视，金的& iconoscope &相机和&显像管&高真空容器的CRT了。

Feature of principal lines spatial distribution: detect the principal lines through edge detecting technology, and then divide the image of palmprint into blocks with same dimension, compute the mean and variance as feature; Feature of palmprint direction: divide the image into sub-images; compute the max angle of projection and coordinate of each sub-image, which stand for the direction and location of the line on the palm; Feature of moment invariants: compute the moment invariants of each sub-image and the whole image as feature.

掌纹主线空间分布特征：利用边缘检测技术检测出掌纹的主线，将图像分割成相同大小互不重叠的子图，提取每一个子图的均值和方差作为特征；掌纹线方向特征：将图像分成不重叠的子图，利用Radon变换求出每一个子图的最大投影角度和坐标，也就是子图内掌纹线的方向和位置，构造特征向量；掌纹不变矩特征：提取图像整体和分割后的子图的不变矩作为特征。

First, it was to obtain two binary images from segmenting image by two thresholds. Second, erosion, opening and closing were done to the two images according to some knowledge of the shape and location of the objects in the image that we have already known. Last, the edge information from the image segmented by a high threshold was put into the image segmented by a low threshold. It is the way to segment and discern circular objects accurately from the complex image and can greatly improve the accuracy rate of discerning.

首先分别根据两个阈值进行分割得到两幅二值图像，然后根据目标是圆形以及其大致位置等先验知识分别对两幅图进行腐蚀，开启，闭合等数学形态学运算，将高阈值分割得到的图像中的边界信息叠加到低阈值分割得到的图像中，实现对复杂背景图像中圆形物体的准确分割与提取，解决了复杂背景图像中物体识别率低的问题。

In order to improve the accuracy of fingerprint directional image further, combining the advantage of the continuity of the point directional image with the advantage of the robustness of the block directional image to the noises in the fingerprint image, a novel concept on the continuously distributed directional image/field and the method to compute it in the fingerprint images are develope...

实践证明这种连续分布方向图过渡平滑、自然，既具有很好的连续性、渐变性和抗噪性，又具有极高的精确度，还兼有指纹点方向图的连续过渡性和块方向图的抗噪性优点。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。