指针式仪表的自动读数是近年来的热门研究内容,但一直存在由成像畸变导致的误差较大的问题。
Automatic reading of analog meter has been a research hotspot recently, but the reading error caused by imaging distortion always exists.
针对CCD成像时中间亮两边暗的畸变特点,用双线性插值的方法对图像进行灰度校正。
According to the imaging character of CCD, a new method to calibrate the distortion image is brought forward.
在本系统中,选用LED光源和畸变小的镜头作为视觉检测系统的照明光源和成像镜头,为精密测量提供了高质量的图像。
The LED light source and lenses with little distortion are selected as light sources and lens of imaging for inspection system, which provide high quality images during precise inspection.
为实现电子束曝光机扫描场的线性畸变校正,设计了图形发生器的成像系统,该系统包括硬件和软件两部分。
An imaging system of pattern generator was designed to correct linear distortion of scanning field of ane-beam lithography system, which was composed of both hardware and software.
本文以理想针孔成像模型为基础,对CCD摄像机的径向畸变问题进行了系统研究。
This paper is based on ideal pin-hole imaging model and researches the distortion problem of CCD camera.
利用标定物直线边缘的图像,并运用优化的方法来计算成像系统的畸变系数和主点位置。
According to image of linear edges in calibration object, the distortion coefficient and position of principal point of imaging system can be calculated by optimization method.
本文提出用数字图像相关技术高精度测量光学成像系统的畸变。
The following put forward the method that measuring distortion of optical image system by means of digital image interrelated technique accuracy.
在建模时,认为前景摄像头是理想的线性镜头,不考虑其畸变,运用针孔成像原理进行建模。
When modeling, it is proposed that local camera is ideal linear, used pinhole imaging theory to model, don't consider its distortion.
通过理论分析和实验验证,在数码相机成像中,二维图像中的非线性畸变主要来自于相机镜头中透镜的组合误差。
Nonlinear distortion of images by digital camera is made of combined errors of lens in the camera. It is confirmed through theoretic analysis and experimental proof.
本文介绍了基于楔条型阳极的紫外单光子成像系统,分析了引起图像畸变的原因。
Ultraviolet single photon imaging system with wedge and strip anode is introduced and the influence factor leading to image distortion is analyzed.
通过对图像瞄准系统中的畸变分析,提出以激光长度测量值作为长度基准的成像系统在线自标定方法。
In this paper the distortion of image collimating system is analyzed, and then an on-line self-calibration method with double-frequency laser length measuring result as length datum is presented.
空间目标的高速运动会使得一维距离像产生畸变,因此高速运动补偿是空间目标高分辨雷达成像的关键步骤。
The high velocity of space targets will lead to aberration of range profile, so the correct compensation of high velocity is the key step for high resolution radar imaging.
根据内窥镜成像特性以及基于全局收敛的线性搜索法来确定畸变图像中心和多项式系数。
A new method to correct the barral distortion of endoscope image based on the line search method of guaranteed global convergence is presented.
实验建立了荧光显微成像系统对光学元件损伤引起的荧光光斑畸变进行观测。
A fluorescence image system was built to observe aberration of fluorescence profile because of laser induced damage.
短焦距摄像机镜头一般都存在比较严重的光学畸变,使成像质量下降。
There are bad optical aberration in the camera lens of short focus.
高分辨距离像的畸变补偿是空间目标ISAR成像过程中的重要环节。
Distortion compensation of high resolution range (HRR) profiles plays an important role in ISAR imaging of space target with high speed.
该文通过对光学成像系统中非线性畸变的分析,提出了一个数字校正方法。
Based on the analysis of nonlinear distortion of optically imaging system, a simple and effective digital method for correcting nonlinear distortion is proposed.
该探测器属于光子计数成像探测器,具有增益高、图像畸变小、分辨率高等优点。
This detector is a kind of photon counting imaging detectors, which has some properties such as high gain, small distortion and high resolution.
短焦距摄像机镜头一般都存在比较严重的光学畸变,使成像质量下降。
This method is good for the camera lens of short focus, it can correct the aberration caused by radial distortion perfectly.
该系统中引入了一个转动平台带动相机运动,使相机光轴始终对准运动的光学测头中某一个光点,保证光学测头成像在畸变比较小的像面中心附近。
In this system the axis of the camera always aims at the moving optical probe to ensure the probe imaging in the center of the image plane.
同一幅图像内不同条带的成像时间不一致,将会导致条带间的几何错位,即地球自转引起的几何畸变。
Then different belts in the same image have the different imaging time, making the geometric dislocation within different belts, which is also named as deformation caused by the earth-rotation.
目的 提出一种有效解决在SPECT定位算法中提高图像边缘定位精度的新方法,以解决研制的小动物成像系统中存在的边缘图像畸变问题。
Objective To implement a combined method for the small animal CT-SPECT system to correct the distortion at the edge of the image, and to improve the positioning results.
方法:对原始图像构建出弥散张量成像去畸变流程,通过主观与客观评价法对处理的结果进行评价与分析。
Methods: The pipeline of eliminating distortion was built to optimize the DTI raw images. The results of the pipeline were evaluated and analyzed by the means of subjective and objective method.
方法:对原始图像构建出弥散张量成像去畸变流程,通过主观与客观评价法对处理的结果进行评价与分析。
Methods: The pipeline of eliminating distortion was built to optimize the DTI raw images. The results of the pipeline were evaluated and analyzed by the means of subjective and objective method.
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