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[Special Effects] ImageRegistration DL : 0: 基于边缘特征的图像配准算法源码基于边缘特征的图像配准算法是将不同时间、不同的传感器（成像设备）或不同条件下（天候、照度、摄像位置和角度等）获取的同一场景的两幅或多幅图像根据其边缘特征进行匹配、叠加的处理，最终生成一幅全景图像的方法。该方法具有抗噪性强，匹配速度快，误匹配率低，适用于多种类型的图像等优点，主要可以运用于以下领域：（1）军事研究领域，如飞行器辅助导航系绞、武器投射系统的末制导以及寻地等应用研究；（2）医学图像分析，如数字剪影血管造影DSA血管造影术、肿瘤检测、白内障检测、CT、MRI、 PET、 SPECT图像结构信息融合；（3）模式识别，如特征识别、波形分析、签名证实、目标物运动跟踪、序列图像分析等；（4）计算机视觉，可用于目标定位、自动质量控制等；（5）遥感数据分析，多电磁波段图像信息融合，如多谱段的等场景分类、定位和识别定义好的或已知特征的场景、自然资源监控、核生长监控、市区增长检测等。本算法实现使用VC++6.0为开发环境，目前只支持灰度图像，感兴趣的朋友可以进一步扩展。-Image registration is a fundamental problem in image processing, which is a process to match two or more images of the same scene taken at different times, from different viewpoints, or by different sensors. Image registration is an important technique for a great variety of applications such as medical image analysis, computer vision, remote image data analysis, image information fusion, and the recovery of the 3–D characteristics of a scene.
Date : 2025-12-29 Size : 138kb User : YYK
[Special Effects] dsa DL : 0: 用VC实现数字减影算法，通过模板匹配，再对两幅图像相减，即用盈片中减去蒙片，从而实现突出血管区域的目的。【源码加文档说明】-Using VC to achieve digital subtraction algorithm, template matching, and then the subtraction of two images, that the film with surplus minus mask, in order to achieve the purpose of highlighting vascular region. 【Source】 plus documented
Date : 2025-12-29 Size : 1.76mb User : olysess
[Special Effects] gm DL : 1: 经典的频谱共享的EI检索算法，运用动态频谱租用来提高频谱利用率。-Dynamic Spectrum Leasing (DSL) is a new paradigm for efficient spectrum sharing in cognitive radio networks that was recently proposed in [1]–[3]. Unlike in a hierarchical dynamic spectrum access (DSA) network, DSL allows active participation of both the primary and the secondary users in the spectrum sharing process. In this paper we further generalize the DSL game introduced in [2] by allowing for linear multiuser detectors, in particular the matched filter (MF) and linear minimum mean squared error (LMMSE) receivers, at the secondary base stations. We establish the conditions so that the DSL game has desired equilibrium properties. Performance of the proposed system at the equilibrium is compared through simulations
Date : 2025-12-29 Size : 179kb User : 刘小洋
[Special Effects] Digitalsubtraction DL : 0: 数字减影血管造影( DSA) 通过向血管中注入造影剂, 使血管的整体影像的对比度有了明显的增强, 然后通过造影前后图像的相减运算, 可以去除非血管器官的影像, 得到血管更清晰的图像, 目前广泛应用于心血管疾病的诊断。由于患者的呼吸运动, 使得不同时间采集的图像相减后会产生运动伪影。为了消除运动伪影, 从医生临床上对于心脏的运动以胸腔的横膈膜为参考目标得到启发, 首先得到很多幅注入造影剂之前的图像( 掩膜图像) 和一幅注入造影剂之后的图像( 造影图像) , 然后指定其中的一幅掩膜图像作为参考图像, 其它的掩膜图像和那一幅造影图像分别对参考图像求位移。基于上面求出的位移, 可以将候选图像集中到位移小于某一阈值的很少的几幅图像上, 然后在这几幅图像上应用改造过的搜索算法, 最终找到了运动伪影最小的那幅掩膜图像。该算法引入了绝对位移和相对位移相结合的方法使减影图像中运动伪影得到明显消除。-In dig ital subtr action ang io gr aphy ( DSA) , the co nt rast of the v essels is gr eatly improv ed w ith the injectio n of contrast medium. In addit ion, mo re clear vessels can be visualized by eliminating the imag es o f non􀀁 vessel or gans, and those imag es ar e called subtr action imag e o r DSA. Therefo re, DSA is o f w ide use for diag no sis o f car dio vascular disease. Subtr action of imag es o bt ained befo re and after injection of contrast medium may cr eat e mo tion art ifacts due to the aspiratio n o f pat ient s. In this reg ard, being motiv ated by the docto rs􀀂 ex per ience that t he displacement of dia􀀁 phragm can be used as the reference to measur e the hear t beat, we present a method to eliminate the mot ion ar tifacts. In o ur method, fir stly , a set of DSA imag es are taken befo re injection o f contr ast medium, w hich are called mask images! and one imag e taken after injection o f contrast is called targ et image! . Seco
Date : 2025-12-29 Size : 651kb User : xingxing
[Special Effects] DSA DL : 0: MATLAB语言实现数字减影血管造影技术，打开蒙片和盈片，提取图像边缘，选择控制点，进行匹配之后减影，输出减影后的图片。(MATLAB language digital subtraction angiography, open the mask and surplus, edge extraction, control point selection, matching after subtraction, output subtraction images.)
Date : 2025-12-29 Size : 2kb User : 小玲子