图像化

HP were determined by rapid urease test,Warthin-Starry silver stain and polyme rase chain reaction,and expression of P21,P53,C-myc and C-erbB-2 were detecte d by immunohistochemicology (Streptaovidin/Peroxidase,SP) method,and were evalua ted with positive expressive integrality,the mean optical density an d the integral optical density in computer assisted image analysis system.

方法经内镜和病理诊断的胃癌91例，用快速尿素酶试验，改良W-S银染色和PCR方法检测上述标本中Hp；以S-P免疫组织化学法检测P21、P5 3、C-mcy及C-erbB-2，并用阳性表达积分半定量和免疫组化图像分析进行比较。

When discrete characteristic of digital images is considered, finite difference approximates differential operator.

考虑数字图像离散化特征，用有限差分近似微分运算，将由PDE描述的反射图方程转化为关于未知高度的代数方程，然后使用迭代算法求解，得到新的SFS算法。

By automatically selecting the optimal diffusion constant and iterative number, the filtering process is totally automatic and does not require any operator assistance and the diffusion is suppressed or stopped at boundaries and edges and small structures are retained.

正是在这样的背景下，本研究针对计算机集成相控HIFU治疗计划中的两项关键技术：序列医学断层图像的分割及其体视化技术，进行了理论研究和算法的设计。

In the final rendering period, the color field, directional point splatting and color refining technologies were applied to obtain a smoothed image of fire from discrete locations of particles.

在粒子渲染过程中，采用了色度场、有向点扩散和颜色锐化技术，由离散的粒子空间分布得到了较为理想的连续火焰图像。

In order to bypass the difficulty of discretizing the boundary r or the Lebesgue discontinuous set Su in the Mumford-Shah model, we use an edge-detector function and a threshold value to induce a thin-belt where the image boundary lie in and displace the length of the boundary by the area of the thin-belt approximatively.

为避免在离散化Mumford-Shah模型中的边界Γ或Lebesgue不连续集S_u的困难，我们借助边界检测算子和门限值，确定图像边界所在的窄带区域，用窄带区域面积近似边界的长度。

This method can connect breaks of the ridges and can dispart conglutinated ridges, but still has several shortcomings.

用方向滤波法做指纹图像二值化可以较好地连接断裂的纹线和分离粘连的纹线，并指出了当前方向滤波方法的缺点。

The working principle of the system and signal flow of joint board, DSP board and display board were analyzed in detail.

研究了一种基於ADSP21060和FPGA的非致冷红外成像与智慧跟踪的模块化高速实时红外图像处理系统，分析了该系统中接口板、DSP板和显示板之间的系统工作原理和信号流向。

A new signed distance function initial method for image segmentation model based on level set approach is proposed.

对基于水平集的图像分割模型提出了一种新的初始化符号距离函数的方法。

Histochemical, immunochemical and in situ hybridizative methods and technique of computer image analysis were used in this study to investigate the variable trends of expression and correlation of some proteins and genes interrelated with abnormal proliferation of hepatocyte during periods of hepatocarcinogenesis induced by diethylnitrosamine, and the effect of Ganfujian Granule, which is composed of drug-food double-duty herbs, taking"jian-pi-shu-gan"(invagorating spleen and soothing liver) as therapeutic principle and manufactured by our department. The purpose of the study is to screen out an applicable and effective liver cancer preventive agent of traditional Chinese medicine, to offer academic foundation for further clinic study and to spread out its application.

本课题通过组织化学、免疫组化、原位杂交等方法及计算机图像分析等技术，检测了化学致癌物二乙基亚硝胺诱导大鼠肝癌形成过程中与肝细胞异常增殖相关的部分蛋白、基因表达的动态变化和相互关系及我科研制的以"健脾疏肝"立法的药食两用中药制剂肝复健冲剂对诱发肝癌各时期上述因素异常变化的影响，旨在筛选适用、有效的中药肝癌预防制剂，并为进一步的临床试验及推广应用提供一定的理论依据。

First scanning the known handwriting materials then number them ,In pretreatment, we convert the valid part of the image into a standard size, as images carries out duotone and go throw off chirp handling in order to achieve better effect.draw features from the known handwriting materials with the Co-occurence,especially,we divided a copy of handwriting into 25 little pieces with the size of 128*128 ,drawing features from every little piecese with four directions(0 degree, 45 degrees, 90 degrees as well as 135 degrees) and calculate the four major feature values( veins and the statistical quantity of veins contrast and the statistical quantity of veins consistency Shang the statistical quantity of statistical quantity as well as the veins correlation of gray scale ), preservation all the feature value that drawn from all known ma terials to the handwriting characteristic database,then input the unknown handwriting materials, also using the method of the Co-occurence to draw those features, recycling the minimum European Distance law match the unknown writing material feature value with the handwriting characteristic feature database, export the label of the known hand writing materials which is most similar to the unknown material with minimum European Distance, and then we can confirm who is the author of the unknown material.

首先将笔迹材料作为图象扫描输入，并对其进行编号。预处理部分可将笔迹图象的有效部分规范化到一个统一尺寸，接着对其进行二值化和去除噪声的处理，以便于更好的提取图像的特征。在此我们采用了灰度共生矩阵法提取手写笔迹材料的纹理特征，与以往有所不同的是，我们将一份手写材料分割成64块大小为80*80象素的子图象，每个小块都从四个方向（0度、45度、90度以及135度）来更全面的提取特征，并计算出四个最主要的特征值（纹理一致性的统计量、纹理反差的统计量、纹理熵的统计量以及纹理灰度相关性的统计量），将从所有已知材料提取的特征值保存到纹理特征库中，对于待检手写材料，同样采用灰度共生矩阵的方法提取其纹理特征，再利用最小欧氏距离分类法将从待检手写材料中提取的特征值与纹理特征库中的特征值进行比对，与欧氏距离比对值最小的相匹配，输出匹配成功的原材料的标号，进而识别出待检材料书写者的身份。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。