本文提出一种新方法——灰度差法进行三维重建。
This paper gives a new method-Grey scale difference methods to do 3d reconstruction.
象素的灰度差分均值在不同方向上突然下降或上升；
The mean difference of pixels suddenly decreased and increased in different directions;
该方法从恒星之间的相对位置入手，避开通过灰度差分消减恒星的过程。
This method starts from relative position of stars and avoids from removing stars by gray difference.
在深入研究图像像素灰度差分的基础上，提出了一种新颖有效的自适应信息隐藏算法。
Based on the detailed study of image pixel-value differencing, a novel and efficient adaptive information hiding algorithm was proposed.
提出了一种新的基于双目视觉和灰度差分的粒径测量方法，并开发了相应的查询系统。
A new particle size measurement technique based on the binocular vision and the particle image gray difference was suggested and a corresponding inquiry system was developed.
首先在序列的两幅图像中检测兴趣点，并运用灰度差分不变量进行两点集之间的匹配。
Firstly, we detect the points of interest in a pair of images in image sequence, and then match the point set using the gray value differential invariants.
在获得了兴趣点之后，利用兴趣点处的局部灰度差分不变量进行序列图像的点特征匹配。
Once the interest points were detected, the image matching process in an image sequence is performed using local gray-value differential invariants.
用强度图像提取景物边界的主要缺点是当景物间灰度差较小以及噪声存在时，很难得到精确的边界。
It is very difficult to obtain the accurate borderline of object When distilling the borderline of object with less gray level from its intensity image with disturbance.
本文首次研究了在不同方向的图像灰度差的绝对值之和与图像运动模糊方向的关系。在此基础上，提出了几种运动模糊图像清晰度评价函数，并研究了它们的优缺点和适用范围。
The relationships in various directions between the function, the sum of absolute value of gray difference of image, and the motion blur direction are studied for the first time in this paper.
首先，针对红外图像低信噪比的特点，采用局部灰度均值特征及局部标准差特征用于目标建模。
Firstly, the local gray mean feature and local standard deviation feature were utilized to realize target modeling based on the low SNR characteristic of ir images.
对图像中的低频噪声，基于对图像中目标与背景灰度值特点的分析，提出了改进的差分去噪声模板。
An improving noise eliminated difference template based on the analysis of object and background gray value also has been developed to eliminate the low frequency noise in image.
改进的二值文本图像水印算法：由于二值图像信息隐藏免疫力差，绝大多数基于灰度或彩色图像的水印算法不再适用。
A digital watermarking algorithm in binary text image: Because of the weak information hiding immunity of binary text image, many watermarking methods based on gray or color images are useless.
提出了应用灰度变换差分替代方式进行图像隐藏的方法。
We present a new method, which combines the method of gray transform and gray difference replacement to hide secret image.
由于B超图像的分辨率差、灰度级别少等特点，用传统的边缘检测方法难以得到满意的效果。
Because of the low resolution and few gray-level for B-ultrasonic images, we can hardly obtain satisfied result by the traditional edge detection methods.
通过与传统的基于灰度背景差分方法的结果进行对比发现，本文采用的方法可以比较精确的实现对单个和多个目标以及简单遮挡情况下的跟踪。
Compared with the results based on traditional gray background difference, the method in this thesis has realized precise tracking of single object and multi-object with simple occlusion.
方法以差分盒计算方法计算肝脏CT图像表面灰度的分维数值。
Method The value of fractional dimension for liver CT image is calculated by differential box counting.
然后，结合图像帧间的差分信息以及灰度分布的先验概率等因素将图像从空间域映射至统计域。
Then, every frame is mapped from spatial domain to statistical domain incorporating the factors such as the difference image from the consecutive frames and the prior distribution of a pixel density.
标签MPEG -4视频对象分割灰度连续区域帧差图。
MPEG 4 video object segmentation grey consecutive region difference image.
局部差分变换具有灰度线性不变性，可消除光照变化对纹理分析的影响。
Local difference transform is invariant against any monotonic transformation of the gray scale.
在目标检测过程中，分别利用单目视觉下基于灰度的连续帧间差分法和对称差分法实现了目标检测。
In the process of object detection, the inter-frame difference object detection method and symmetrical inter-frame difference object detection method based on gray were used respectively.
给出了一种基于图像各彩色分量灰度统计特征期望值和全局标准差作为阈值的彩色图像灰度化方法。
An approach for color image gray processing based on threshold of gray scale statistic mean value and global standard deviation of each color component is presented.
相邻帧配准差分去除恒星方法，在处理16位灰度图像时，由于高亮度恒星的插值误差大于目标灰度与背景之差，导致差分不能有效去除恒星干扰。
Registration and difference can't exclude stars when processing the 16-bit gray images because interpolation error of high light star is larger than the difference of target and background.
利用灰度共生纹理特征向量和灰度共生-差分维数联合特征向量结合BP神经网络和朴素贝叶斯网络都能对地物进行有效识别，识别率在70%以上。
Ground objects can be effectively recognized by gray co-occurrence vector and gray co - dimension feature vector with BP neural network and Bayesian network, recognition rate of 70%.
应用灰度共生-差分维数联合特征向量的识别结果要优于灰度共生纹理特征向量。
Application of gray co-dimension feature vector is better than the gray co-occurrence vector.
利用差分法配合灰度拉伸对颗粒运动图像进行了处理 ，直方图分析表明 ，像素在灰度上的分布特性与颗粒运动的剧烈程度具有相关性。
By using image difference and gray stretch technique, image histogram analysis method was used to investigate the movement of particles in image sequence.
该方法取运动角点为特征量，通过选择灰度相关函数为特征匹配函数，实现了车辆在一定帧差内移动距离的测量。
Motion corner points are chosen to form a feature vector, and the image intensity is used as a feature matching function to measure inter-frame movement of the vehicle.
罗丹明染料的混合试验可以直观地检测微型混合器的混合效果，同时采用计算图像灰度值标准差的方法定量分析了微型混合器的性能与结构参数、流量的关系。
Computational fluid dynamics method is applied to investigate flow field of this static micro-mixer, and gives the mixing principles of this micro-mixer. Rhodamine dye mixing experiments, as a flow…
罗丹明染料的混合试验可以直观地检测微型混合器的混合效果，同时采用计算图像灰度值标准差的方法定量分析了微型混合器的性能与结构参数、流量的关系。
Computational fluid dynamics method is applied to investigate flow field of this static micro-mixer, and gives the mixing principles of this micro-mixer. Rhodamine dye mixing experiments, as a flow…
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