专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20060066307A1 Method and system for image artifact reduction using nearest-neighbor phase correction for echo planar imaging 有权
标题翻译：用于回波平面成像的最近相位校正的图像伪像减少的方法和系统
公开(公告)号：US20060066307A1
公开(公告)日：2006-03-30
申请号：US11083269
申请日：2005-03-17
申请人： Richard Hinks , Bryan Mock , Bruce Collick , Frederick Frigo , Tejaswini Shubhachint
发明人： Richard Hinks , Bryan Mock , Bruce Collick , Frederick Frigo , Tejaswini Shubhachint
IPC分类号： G01V3/00
CPC分类号： G01R33/56554
摘要： A nearest neighbor phase correction technique is implemented to reduce image artifacts due to phase errors in data acquired in an EPI scan. Image quality for EPI applications, such as DWI, DTI, and fMRI, is improved.
摘要翻译：实施最近邻相位校正技术以减少由于在EPI扫描中获取的数据中的相位误差导致的图像伪影。改进了EPI应用的图像质量，如DWI，DTI和fMRI。

2. 发明授权

US07102352B2 Method and system for image artifact reduction using nearest-neighbor phase correction for echo planar imaging 有权
公开(公告)号：US07102352B2
公开(公告)日：2006-09-05
申请号：US11083269
申请日：2005-03-17
申请人： Richard Scott Hinks , Bryan James Mock , Bruce David Collick , Frederick Joseph Frigo , Tejaswini Shubhachint
发明人： Richard Scott Hinks , Bryan James Mock , Bruce David Collick , Frederick Joseph Frigo , Tejaswini Shubhachint
IPC分类号： G01V3/00
CPC分类号： G01R33/56554
摘要： A nearest neighbor phase correction technique is implemented to reduce image artifacts due to phase errors in data acquired in an EPI scan. Image quality for EPI applications, such as DWI, DTI, and fMRI, is improved.

3. 发明授权

US06703835B2 System and method for unwrapping phase difference images 失效
标题翻译：用于展开相位差图像的系统和方法
公开(公告)号：US06703835B2
公开(公告)日：2004-03-09
申请号：US10119724
申请日：2002-04-11
申请人： Sarah K. Patch , Tejaswini Shubhachint , Graeme C. McKinnon , Sandhya Parameswaran , Joseph K. Maier
发明人： Sarah K. Patch , Tejaswini Shubhachint , Graeme C. McKinnon , Sandhya Parameswaran , Joseph K. Maier
IPC分类号： G01N300
CPC分类号： G01R33/565 , G01R33/3875 , G01R33/56527 , G01R33/56563
摘要： A method for processing digital images includes acquiring a phase difference image which includes one or more phase wraps, creating a modulated phase difference image from the phase difference image, comparing the modulated phase difference image to the phase difference image to locate areas in the phase difference image to be unwrapped, and unwrapping the phase difference image based on the areas located in the comparing step. The unwrapping step is performed by replacing wrapped pixels in the phase difference image with pixels in the modulated phase difference image plus an integer multiple of &pgr;. The integer multiplier is computed by comparing overlapping pixels in the image segments. This has a smoothing effect causing the wrapped pixels in the phase difference image to become unwrapped. As a result of this pixel replacement process, an image of improved quality and information content is produced compared with conventional methods.
摘要翻译：一种处理数字图像的方法包括获取包括一个或多个相位包的相位差图像，从相位差图像创建调制相位差图像，将调制相位差图像与相位差图像进行比较，以定位相位差中的区域图像被展开，并且基于位于比较步骤中的区域展开相位差图像。通过将相位差图像中的包围像素替换为调制相位差图像中的像素加上pi的整数倍来执行展开步骤。通过比较图像片段中的重叠像素来计算整数乘数。这具有使相位差图像中的被包裹的像素变得展开的平滑效果。作为该像素替换处理的结果，与常规方法相比，产生了改善的质量和信息内容的图像。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式