Fourier-Mellin domain based two-dimensional/three-dimensional image registration method

A technology of 3D image and 3D registration, applied in image data processing, 3D modeling, instruments, etc., can solve the problems of high complexity and low robustness

Active Publication Date: 2012-07-25
北京格镭信息科技有限公司
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Problems solved by technology

So it has high complexity and low robustness

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  • Fourier-Mellin domain based two-dimensional/three-dimensional image registration method
  • Fourier-Mellin domain based two-dimensional/three-dimensional image registration method

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[0078] The invention relates to a two-dimensional and three-dimensional image registration method based on Fourier Merlin domain. Two-dimensional projection images for preoperative planning can be acquired by X-ray equipment. An example of such a device is Siemens Mobilet. Three-dimensional data for surgical navigation can be collected by the tablet C-arm. An example of such a device is Siemens Artis Zeego.

[0079] like figure 1As shown, the acquired 3D images and 2D projection images are first transmitted to the DICOM server, and then the data are transferred from the DICOM server to the registration PC before the registration algorithm runs. The 3D image obtained by registering the PC is recorded as V, and its size is Width x Height x Depth, where Width is the length of the 3D image, Height is the height of the 3D image, and Depth is the width of the 3D image. The projected image is denoted as I 1 (x, y) with size PxP.

[0080] like figure 2 As shown, the projection...

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Abstract

The invention discloses a Fourier-Mellin domain based two-dimensional/three-dimensional image registration method, which belongs to the field of medical image registration. The method can be applied to bone trauma surgery navigation systems, and used for associating a preoperative planning with intraoperative three-dimensional images so as to achieve the purpose of guiding an operation. The method is implemented through the following steps: by using the scale of images in a Fourier-Mellin domain, rotating and translating the coupling degree among invariably-separated to-be-optimized parameters; according to an estimated out-of-plane rotation parameter, calculating an in-plane rotation parameter; estimating the distance between an X ray and a three-dimensional image; estimating the distance between the three-dimensional image and a receiver; and calculating an in-plane translational sequence so as to carry out registration. The two-dimensional/three-dimensional image method disclosed by the invention lays a foundation for the reconstruction of preoperative data in intraoperative three-dimensional images.

Description

technical field [0001] The invention belongs to the field of medical image registration, in particular to two-dimensional and three-dimensional image registration. Background technique [0002] Computer-aided navigation surgery is a new interdisciplinary research field that integrates many disciplines such as medicine and computer technology. Its purpose is to use computer and tracking equipment to simulate various processes involved in surgery, including surgical planning, surgical navigation, etc., to guide doctors to achieve high-precision surgical operations. [0003] In recent years, computer-aided surgical planning has gradually replaced traditional radiographic-based surgical planning. There are many popular surgical planning software on the market, such as Siemens' PreOPlan, Stryker's CasePlan, iCRco's Orthocrat and so on. These software can identify the size of pixels in the 2D projected image with the help of built-in calibration function. Human-computer interac...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06T19/00
Inventor 贾克斌魏嵬贾晓未
Owner 北京格镭信息科技有限公司
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