Description: 基于相位叠加的特征点检测方法：
计算一幅图像相位叠加的代码，相位叠加是阐述与对比不变性措施的特点意义。同时它适当得查出所有相位点的特点，不仅测量0到180度的相位角。这个作用也返回特征类型图片。然而注意，它的作用现在只是这里为参考原因。-Based on the feature points superimposed phase detection method: calculation of an image overlay code phase, phase is superimposed on the invariant measure and contrast the characteristics of significance. At the same time, it was appropriate to identify all the characteristics of phase-point, not only measurement of 0-180 degrees phase angle. The role of the return characteristics of the type of picture. However, note that its role here is just for reference reasons. Platform: |
Size: 6144 |
Author:asdasdasd |
Hits:
Description: 定性与定量地描述冠状动脉血管，很大程度依赖于造影图像中的血管结构识别结果，对此，提出了一种多特征模糊识别算法判别血管结构．实现过程中，首先通过图像预处理获得血管初始特征，然后利用一圆周探测器沿血管路径扫描并获取多种局部测度；在定义各种局部测度的多特征模糊子集及其隶属度函数之后，通过构造模糊识别算子准确地判别血管的端、段、分支和交叉结构．该方法在仿真血管模型和多套实际冠状动脉造影图像上获得了较好的效果，对实际图像的结构识别平均正确率达到92 。-Qualitative and quantitative description of coronary artery, a large extent depends on the contrast images of the vascular structure of the recognition result, this paper presents a fuzzy multi-feature recognition algorithms distinguish vascular structures. Implementation process, the first vessel through the initial characteristics of image preprocessing was, and then use a circular detector scanning along the vascular path and to obtain a variety of local measures in defining the characteristics of the various local measure of the multi-fuzzy sets and membership function after by constructing a fuzzy recognition accurately determine vessel operator s side, section, branch and cross-structure. The method in simulation models and multi-vessel coronary angiography image sets were real good results, the structure of the actual image recognition accuracy of 92 on average. Platform: |
Size: 352256 |
Author:郭事业 |
Hits:
Description: IMAGE AREA Automatically measure the local contrast s performance and IMAGE SNR measures Signal to Noise Ratio in an image Platform: |
Size: 1024 |
Author:Adi Nugroho |
Hits:
Description: 计算三相对称的代码。这可以被用来作为一个行和BLOB探测器。相位对称是照明和图像的对比度，对称不变测度。-Calculate the three-phase symmetrical code. This can be used as a line and BLOB detector. Phase symmetrical lighting and contrast of the image, the symmetric invariant measure. Platform: |
Size: 7168 |
Author:王峰 |
Hits:
Description: 医学图像配准，医学图像2D_3D配准，基于vc++开发。-Abstract. We present a method that performs the rigid 2D/3D image registration
efficiently on the GPU. As one main contribution of this paper, we propose an
efficient method for generating realistic DRRs that are visually similar to X-ray
images. Therefore, we model some of the electronic post-processes of current X-
ray C-arm-systems. As another main contribution, the GPU is used to compute
eight intensity-based similarity measures between the DRR and the X-ray image
in parallel. A combination of these eight similarity measures is used as a new
similarity measure for the optimization. We evaluated the performance and the
precision of our 2D/3D image registration algorithm using two phantom models.
Compared to a CPU+GPU algorithm, which calculates the similarity measures
on the CPU, our GPU algorithm is between three and six times faster. In contrast
to single similarity measures, our new similarity measure achieved precise and
robust registration results for both phantom m Platform: |
Size: 329728 |
Author:刘坤 |
Hits:
Description: Zhang等人
利用相位一致性信息的特性，提出了
特征相似性方法(FSIMG) ，选取了相位一致性信息和梯度信息
作为它的两个特征，得到了较好的结果。
-A novel feature similarity
(FSIM) index for full reference IQA is proposed based on the fact that
human visual system (HVS) understands an image mainly according to
its low-level features. Specifically, the phase congruency (PC), which is a
dimensionless measure of the significance of a local structure, is used as the
primary feature in FSIM. Considering that PC is contrast invariant while
the contrast information does affect HVS’ perception of image quality, the
image gradient magnitude (GM) is employed as the secondary feature in
FSIM. PC and GM play complementary roles in characterizing the image
local quality. After obtaining the local quality map, we use PC again as a
weighting function to derive a single quality score. Extensive experiments
performed on six benchmark IQA s demonstrate that FSIM can
achieve much higher consistency with the subjective uations than
state-of-the-art IQA metrics. Platform: |
Size: 6144 |
Author:zhangwang |
Hits:
Description: 压缩包内含一个调试好的使用opencv的Qt控制台工程，功能为用三种方式读写图像像素，改变图像对比度，并测量比较三种方式的运行速度。-Compression package includes a debugger opencv good use of Qt console works in three ways to read and write capabilities for image pixel, change image contrast, and measure the operating speed of three ways. Platform: |
Size: 1105920 |
Author:thinkpadx4 |
Hits:
Description: SSIM是一种对比图像相似度度量的算法，算出的SSIM指标在-1，1区间，等于1时两张图片一模一样。-SSIM is a contrast image similarity measure algorithm calculates the SSIM index in 1,1 interval is equal to 1 two pictures exactly the same. Platform: |
Size: 3072 |
Author:姜超 |
Hits:
Search - image contrast measure