This paper discusses the general model of Non-uniform sampling image, and presents the sampling principle of discrete image.
该文讨论了采样图象的一般模型,提出了离散图象的采样准则,给出了一种迭代算法。
An uniform sampling image can be transformed to a space variant sampling image by log-polar coordinate mapping which reduces the searching space and redundant pixels.
通过采用对数极坐标映射,可将空间均匀取样得到的图像变换成非均匀取样的图像,从而减小冗余像素,压缩了搜索空间。
The time interval of image sampling should be shortened to increase the measurement ranges for higher shearing distortion flows.
对于强剪切变形流动,可以通过设定较小的图像采样时间间隔以提高测量范围。
These filter banks have quincunx sampling form and good interpolating characteristic, which can be applied in image decomposition and coding.
该滤波器具有五株排列的交错采样形式和良好的内插性能,适用于图像分解压缩。
The image sampling system that has target recognition function is described. The data is transferred by the USB interface chips.
介绍了一种有目标识别功能的图像采集系统,用usb接口芯片实现了数据的传输。
At last, by generalizing our spherical parameterization algorithm and adaptive sampling scheme to the planar case, we can adopt image compression algorithms to compress geometric signals.
最后,通过把球面参数化算法和自适应采样算法扩展到平面,我们提出一种基于传统图像压缩技术的几何信号压缩算法。
The image processing is applied to determine the loacation of truck compartment in the procedure of coal sampling.
在汽车运煤的入厂抽检取样过程中,采用基于图像处理的方法实现对车厢的定位。
The evolution of pro-eutectic austenite in semi-solid high chromium cast iron was studied by self-made slope sampling plate through metallographical image analysis system.
采用自行研制的倾斜取样板进行取样,并借助金相图像分析系统研究了半固态高铬铸铁先共晶奥氏体的衍变过程。
The researches are mainly focused on the improvement of iris sampling equipment, iris localization, the quality evaluation of iris image, live detection, coding and test statistic.
本文主要讨论了对虹膜采集装置的改进、定位、图像质量评定、活体检测和编码以及测试统计。
The sampling system based on this method captures the gray scale image by linear CCD, and then processes the data and calculates the edge position by a microprocessor.
基于该方法的采集系统由线阵CCD 采集边缘的灰度图像,使用单片机来处理数据,并计算出边缘的位置。
Furthermore, matched software of the image sampling system is presented.
另外,本文编写了配套的图像采集系统应用软件。
It's difficult to find contact from the image photographed by high-speed image sampling system because of the light reflection characteristics of switching arc, contact and interrupter.
由于开关电弧的发光特性和电器触头系统及灭弧室的反光特性,使从高速图像采集系统拍摄到的图像中很难观察到电器触头。
Through analyzing weighted method of image network sampling and statistic matching method of image network parameters, network analytical correction system of saline mud log has been compiled.
本文分析了图像网络采样加权算法及图像网络参数控制的统计拟合分析方法,编制了盐水泥浆测井资料的网络分析校正系统。
Ray-casting algorithm is that ray passes volume cell of data field, sampling relative pels color to form video image.
光线投影算法将光线穿过数据场中的体元,采样得到相关象素的颜色,形成可视图。
Through ct image processing, segmentation, open operation, contour sampling and extraction, the rapid prototyping data interface modal file which is presented as CLI format, can be obtained.
通过CT图像滤波、分割、开操作等图像处理方法以及轮廓提取和采样等建模方法,得到快速成形数据接口cli文件,进而进行原型的快速成形制造。
The research results show that the end-to-end information rate reaches its peak value when sampling interval is near to the mean spatial details of the target, where the image quality is ideal.
研究结果表明,当采样间隔接近采样目标的平均空间细节时,图像采集系统端到端信息率最大,图像质量最理想。
The grey level processing in a sampling window is a very important method for image transforming.
窗口灰阶处理是一种具有重要意义的图象变换方法。
Some properties of the generalized morphological transform provide the basis for establishing a new morphological sampling scheme for both binary and gray image.
在广义形态变换性质研究的基础上所提出的广义形态采样方法,能更好地保留图像的形态信息和边缘信息。
A wavelet packet frequency-shift algorithm for remote sensing image fusion was introduced to solve the problem of serious frequency aliasing caused by dyadic-down sampling.
在基于小波包的遥感图像融合应用中,引入用于调整小波包分解频率顺序的小波包移频算法来解决由于间隔采样而导致的频带混叠现象。
For the special requirements of the image transmission in Infrared Search and Track Systems, a design and implementation process of a FPGA-based Network Video Sampling System have been proposed.
针对红外搜索跟踪系统中图像传输的特殊要求,提出了一种基于FPGA的网络视频采集系统的设计方案与实现过程。
The application of digital image processing technology to sampling, restoring, noise-suppressing and enhancing of X-ray images is described. Mathematical models of the processing are also given.
阐述了数字图象处理技术在射线图象采样、复原、降噪和增强过程中的应用,给出了处理过程的数学模型。
In the aspect of defect inspection, according to the defect character of industrial printing image, a defect inspecting method of sampling and layering based on resolution technology is introduced.
在缺陷检测方面,根据工业印刷品图像中的缺陷特性,基于多分辨率技术提出了一种隔点抽样分层检测图像质量的方法。
Instead of using point sampling, elliptical filtering USES an area (an ellipse) to perform an image lookup.
替代了点采样,椭圆形过滤使用一个椭圆形区域来执行图像检查。
CPLD is used as image sampling control unit and DSP as the system core, and pretreatment circuit is designed to be multifunctional, all these help to sample different wavelength image signals.
该平台采用CPLD作为图像数据的采集控制单元,DSP作为核心处理单元。同时对视频信号的预处理电路进行了通用化设计,能够有效保证系统对不同波段的图像信号进行采集和处理。
A rapid iris localization algorithm based on image sampling was proposed.
提出了一种基于图像抽样的快速虹膜定位算法。
The image got by rosette scanning system is not uniform and lack of sampling. It is difficult to restore the image of scanned object.
在玫瑰扫描亚成像系统中,由于采集到图像的不均匀性和欠采样性,用传统的方法很难恢复被扫描物体的图像。
Based on the simple analysis of the shortcomings of traditional vision system, a new embedded image sampling -processing system is designed.
在简单分析传统图像处理系统的缺点的基础上,设计了一种新的嵌入式图像采样处理系统。
It can realize the highspeed video signal sampling and real-time image fusion for visible and UV images.
结果表明,该实验系统原理可行,能对可见光和紫外图像进行高速采集和实时隔合。
The module is designed for both integral and fractional scaling ratios and utilizes variable filter window for calculating pixels of a scaled image to realize pixel re-sampling.
该模块利用可变大小的窗口滤波插值进行图像像素重采样,能同时适用整数和分数缩放比例的图像缩放。
A novel algorithm for reconstructing high resolution image is proposed based on 2d interpolation kernel by use of continuous image sampling and interpolation formula.
利用连续图像采样及其内插公式,提出了一种基于二维插值核重建高分辨力图像的新算法。
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