Interpolation method of ct image slice data

A technology of CT images and tomographic data, applied in the field of medical image diagnosis, can solve the problems of excessive smoothness between layers, missing lesion areas in the middle, large changes, etc., achieve smooth transition, facilitate analysis and positioning, and improve diagnostic accuracy Effect

Active Publication Date: 2016-06-01
SHANGHAI JIAOTONG UNIV
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Problems solved by technology

At present, when applying computer technology to analyze and process CT images, in order to compress the amount of data, the CT images will be compressed. Large, centrally missing segments may miss important lesion areas
Moreover, when performing image segmentation and other processing, there will be a large difference in target data between the two layers, which will affect the smoothness of the transition between layers, which is not conducive to analysis and positioning

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  • Interpolation method of ct image slice data

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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0020] see figure 1 , a method for interpolation of CT image tomographic data, assuming that the CT image has N layers of CT pictures altogether, the N layers of CT pictures are interpolated, comprising the following steps:

[0021] Step 1: Calculate the average value image between every two adjacent layers of the N-layer CT picture, and obtain N-1 average value images.

[0022] Let the source CT image of the first layer be I 1 , the source CT picture of the second layer is I 2 , ... the source...

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Abstract

The invention provides an interpolation method for CT image layer data. Assuming that a CT image totally has N layers of CT pictures, interpolation operation is conducted on the N layers of CT pictures. The interpolation method for the CT image layer data comprises the following steps that an average picture between every two adjacent layers of pictures of the N layers of CT pictures is calculated, and N-1 average pictures are obtained; Gaussian smoothing processing is conducted on the N-1 average pictures, and high-frequency noise is filtered; interpolation rebuilding coefficients are established, and an interpolation rebuilding image is obtained. According to the interpolation method for the CT image layer data, and the artifact phenomenon caused by interpolation failure due to the fact that interlayer data are not aligned can be avoided. The interpolation method for the CT image layer data enables transition between every two layers of the CT images to be smoother, analyzing and positioning can be conducted more conveniently, and diagnosing accuracy can be effectively improved.

Description

technical field [0001] The present invention relates to the technical field of medical image diagnosis, in particular to an interpolation method of CT image slice data. Background technique [0002] CT images are an important basis for diagnosing patients' diseases. Since CT examinations usually examine the whole body of a patient, the amount of image data obtained is large. In the past, for the completed CT images, the doctor directly observed the disease with the naked eye. When the doctor made the diagnosis, due to the large amount of image data and the limited ability of the human eye to recognize the image, it was inevitable that there would be misdiagnosis. , Missed diagnosis and other situations have left a great hidden danger to the accuracy of patient treatment. [0003] In recent years, the technology of analyzing CT images combined with computer technology to assist doctors in disease diagnosis has gradually developed. At present, when applying computer technolo...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T3/40A61B6/03
Inventor 胡洁吴春平黄海清戚进谷朝臣马进李钦彭勋何飞
Owner SHANGHAI JIAOTONG UNIV
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