The second algorithm uses ring projection to extract feature sequences in image templates, which overpasses the local area limit in tradition methods. While blending factors are gained from energy function that contains image gradient, which conquer the blur and mackle problems in the overlap area using tradition linear weight function. Thus we can gain pleasure visual effect using these two methods in image mosaics with notable illumination difference.
基于圆投影和能量函数优化的图像拼接算法则采用圆投影提取图像匹配模板的特征序列，克服了传统图像特征提取方法中的区域局限问题；对于图像融合，论文从图像能量角度出发，构造一个包含图像梯度的能量泛函，通过最小化该函数来求取图像重叠区域的全局最优融合因子，最终实现快速、准确地拼接图像。
The OTSU algorithm （maximization of interclass variance） is considered as one of the superior threshold selection methods. But this method can not segment the path mark image successfully for our indigenous design and manufactured vision navigation intelligent vehicle under bright illumination. A new method based on regional Roberts gradient is proposed in order to solve this problem.
OTSU法被认为是图像分割中阈值自动选取的最优方法之一，针对自主开发的视觉导航区域交通智能车辆的导航路径在强光照条件下不能直接应用此方法取得准确分割效果的问题，提出了一种基于区域的罗伯特梯度算子的图像分割方法。
A statistical analysis on a reference grid image in a ununiformity illumination field is proposed. On that basis a grid signal extraction project is presented.
本文对非均匀照明场中参考格栅图像作了统计分析，在此基础上提出了一种格栅信号提取方案。
It can stay in concealment. However, it is influenced greatly by nature light illumination and atmosphere transparence so that the image got from it is not very clear.
但是受自然照度和大气透明度影响大，并且景物之间的反差小，图像平淡而且层次不够分明，特别是在浓云和阴天情况下，景物的照度和对比度下降而影响观察效果。
Local image structure is less sensitive to illumination variation than intensity, which can increase the robustness of optical flow computation in real applications.
由于模型LSCM较传统的亮度常数模型对于图像的光照变化不敏感，因此本文方法可以显著提高光流计算的鲁棒性。
This paper presents a novel solution for application in natural light illumination based on standard CMOS technology, which can elide the extraocular illuminating devices for image enhancement. A 16×16 prototype chip was fabricated in standard 0.6 μm CMOS technology.
本文提出了一种应用于自然光照条件下的CMOS工艺的人工视网膜修复方案，省去了目前此类方案中使图像增强的眼外照明设备，在0.6 μm标准CMOS工艺下制造了16×16阵列及测试单元的样片。
In this paper, the main features of endoscopic image are analyzed and homomorphic systems based on the illumination-reflectance model are briefly presented. Then, principles and realization of the model are introduced and expression of the filter function of homomorphic systems is addressed.
本文首先分析医用电子内窥镜图象的主要特点，提出基于照明反射模型的同态滤波方法，接着在简要介绍模型的原理、实现过程和特点的基础上，给出了适用的滤波函数模型和表达式；最后，将处理结果和其它图象增强方法相对比。
In pre-processing stage, the new method increases contrast grade and brightness of each gray image through linear transformation, and the pretreated images are processed according to classical PCA face recognition. In the recognition stage, the first three principal components which reflected the illumination conditions on were given a suitable weight in order to reduce their proportion.
该算法在图像的预处理阶段，利用图像灰度的线性变换，增大每幅图像的对比度和亮度；对预处理后的图像则利用经典PCA算法进行处理，并在识别阶段，通过对体现光照变化的三个主分量进行加权处理，减少它们在识别中占的比重。
The main products are high-resolution gel electrophoresis image analysis system; medical low temperature, ultra-low temperature (-40 ℃, -60 ℃, -86 ℃, -136 ℃, -152 ℃), quick-frozen cold storage freezers and other series; medical ice-lined vaccine preservation refrigerator series; medical illumination, temperature, carbon dioxide incubator series; blood bank refrigerator series; pharmaceutical refrigerator series.
主要产品有高分辨率凝胶电泳影像分析系统；医用低温、超低温（-40℃、-60℃、-86℃、-136℃、-152℃）、速冻等冷藏冷冻箱系列；医用冰衬疫苗保存箱系列；医用光照、恒温、二氧化碳培养箱系列；血液保存箱系列；药品保存箱系列等。
The energy saving requests of different work conditions are analyzed in character of service illumination energy saving, combining the content of Pico-Link network, attended mode, performance parameter, data image, transfer behavior and network transmission security.
从工作制和照明节能两方面，分析了照明系统在不同工况中的要求，结合Pico-Link网络的连接方式和网络性能参数、数据映像、数据传输机制及数据传输的安全性等相关特点，给出了Pico控制器在实现智能照明控制上的具体实现方法。
To enhance the image quality of the display, polarizers or filter films may be laminated on the surface of the display panel to reduce reflection of ambient illumination.
为了提升显示画质，通常会在显示面板表面再贴附一层圆型偏光片或者滤光片以降低环境光的反射。
Before the image segmentation, a preprocessing scheme was performed, which enhances the edges of objects in the image by stretching the difference between every pixel gray value and the local gray mean value, and eliminates the disequilibrium of illumination by nonlinear transform of the local gray mean value. Suitable CNN template was then designed to segment the images and morphological methods were finally carried out to get final results.
该方法通过拉伸图像中各个像素的灰度值与局部灰度值之间的差来增强图像中目标的边界，通过对局部灰度均值的非线性变换来消除图像中光照的不均匀，进而设计出合适的CNN模板来分割图像，最终利用形态学操作得到分割结果。
The algorithm can hold basic illumination and key characters of source image, transform texture details of target expression image; in addition, we can control the degree of expression exaggeration by the function of FAPs.
所给出的算法可以维持源图像的基本属性，保留源图像的特征，迁移表情图像的纹理细节；可以利用FAPs的函数控制表情夸张程度。
Non-uniform illumination may cause wrong segmentation in the threshold segmentation of image. To overcome the above problem, a novel irradiant compensation algorithm for image segmentation is presented.
针对受到光照不均匀影响的图片在直接进行阈值分割造成的错分割问题，提出了在分割前对图像进行光照补偿的预处理，从而降低光照不均匀对阈值分割造成的不利影响。
This new controlled illumination method is as efficient as the general areal shot record technology, moreover, it is more powerful to image the complicated target zone.
这种新的控制照明方法与快速的一般组合炮偏移效率相同，但对复杂目标区域的成像能力显著增强。
The experiments show that the clear pupil image can be obtained by self adapting adjustment in the condition of different illumination and different positions of the user.
实验表明，在不同光照条件及用户不同使用位置的情况下，通过自适应调节，可获得清晰的瞳孔图像。
The suitable incident light illumination can be specified by this method, which ensures enough signal to noise ratio in tested image intensifier and does not cause image intensifer to saturate.
作者简介拜晓锋(1982-)，男，陕西大荔人，西安工业大学光学工程专业在读硕士研究生，西安应用光学研究所助理工程师，主要从事微光像增强器测试技术及系统的研究工作。
And according to the application requirements of the the new lighting, a high numerical immersion objective is designed, and the design of the objective is introduced in detail, and the analysis and estimate of the image quality is also generally given, the result of design shows the NA of this objective is about 1.55, fulfills the requirements of the new illumination system well.
并根据该新照明方案的要求，详细介绍了适用于新的照明系统的浸油显微物镜的设计过程，并对该浸油物镜的设计结果进行全面的像质分析和像质评价，设计结果显示该浸油物镜的数值孔径可达1.55，很好的满足了新照明系统的需要。
To improve the precision of vision-based structural road lane marker identification and tracking of intelligent vehicle navigation, and eliminate the disadvantages such as vehicle flow, shade and uneven illumination, a method using image segmentation based on Maximum Correlation Criterion and lane marker tracking algorithm based on Regions of Interest was proposed.
为提高基于视觉导航的智能车辆对结构化道路车道标识线的识别和跟踪精度，同时消除车流、阴影和光照不均匀等不利因素的影响，提出一种基于最大相关准则的图像分割算法及基于感兴趣区域的车道标识线跟踪算法：首先，对图像进行滤波和光线补偿等前期处理，采用最大相关准则的图像分割算法对道路图像进行阈值分割；然后，根据车道的结构特征及先验知识提取车道标识线的特征点，并运用最小二乘法对特征点拟合，得到车道模型的参数；最后，通过建立感兴趣区域的方法实现对车道标识线的准确跟踪。
So feature of this method is that it supplies a good algorithm to synthesis image in arbitrary illumination environment.
针对高分辨率真实感虚拟环境及场景浏览时变焦观察的需要，研究了图像分辨率增强算法。