Invention Grant
US08077952B2 Precomputed automatic pixel shift for review of digital subtracted angiography
有权
预先计算的自动像素位移用于数字减影血管造影检查
- Patent Title: Precomputed automatic pixel shift for review of digital subtracted angiography
- Patent Title (中): 预先计算的自动像素位移用于数字减影血管造影检查
-
Application No.: US11779491Application Date: 2007-07-18
-
Publication No.: US08077952B2Publication Date: 2011-12-13
- Inventor: John Baumgart
- Applicant: John Baumgart
- Applicant Address: US PA Malvern
- Assignee: Siemens Medical Solutions USA, Inc.
- Current Assignee: Siemens Medical Solutions USA, Inc.
- Current Assignee Address: US PA Malvern
- Agent Alexander J Burke
- Main IPC: G06K9/00
- IPC: G06K9/00

Abstract:
Disclosed are method and apparatus for motion correction of Digital Subtracted Angiography (DSA) images. Prior to display of DSA image frames, a pixel shift vector is calculated for each fill frame. For a fill frame in which a pixel shift vector cannot be directly calculated, an approximate pixel shift vector is interpolated between, or extrapolated from, other pixel shift vectors. A mask frame is shifted by a pixel shift vector. The resulting shifted mask frame is subtracted from the corresponding fill frame to generate a motion-corrected subtracted frame, which is then displayed on a video display. Motion correction is performed prior to diagnostic review.
Public/Granted literature
- US20080037844A1 Precomputed Automatic Pixel Shift for Review of Digital Subtracted Angiography Public/Granted day:2008-02-14
Information query