CUDA-based DICOM medical image dynamic nonlinear window modulation method

A medical imaging, non-linear technology, applied in the field of medical image processing, can solve the problems of not conforming to the visual characteristics of the human eye, easy to submerge details, etc., to shorten the use time, ensure real-time performance, and enhance the effect of images

Inactive Publication Date: 2014-07-09
LANZHOU JIAOTONG UNIV
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Problems solved by technology

The use of linear window adjustment does not conform to the visual characteristics of the human eye, and it is easy to drown out details

Method used

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  • CUDA-based DICOM medical image dynamic nonlinear window modulation method
  • CUDA-based DICOM medical image dynamic nonlinear window modulation method
  • CUDA-based DICOM medical image dynamic nonlinear window modulation method

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Embodiment Construction

[0037] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0038] A CUDA-based dynamic non-linear window adjustment method for DICOM medical images. Step one includes reading the pixel value information of the DICOM image and the label information of the DICOM image in the DICOM format image;

[0039] Step 2: Set the window width and window level of the image window, and use the nonlinear function for window adjustment;

[0040] Step 3: Calculate the mapping equation in the nonlinear window adjustment based on CUDA using a parallel algorithm, and calculate the pixel data of the DIB image;

[0041] Step 4: Fill the bitmap structure body according to the pixel data group composed of the calculated pixel data of the DIB image and the label i...

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Abstract

The invention discloses a CUDA-based DICOM medical image dynamic nonlinear window modulation method. The method comprises the steps of (1) reading DICOM image pixel value information and DICOM image tag information in DICOM-format images; (2) setting the window width and the window level of an image window, and using a nonlinear function for window modulation; (3) on the basis of a CUDA, adopting a parallel algorithm to calculate a mapping equation in nonlinear window modulation, and obtaining pixel data of a DIB image through calculation; (4) according to a pixel data set composed of the pixel data, obtained through calculation, of the DIB image, filling a bit image structural body with the tag information read in the step (1), and displaying the constructed bit image; (5) according to the displayed bit image, judging whether the window width and the window level of window modulation need to be reset or not is judged, and if the window width and the window level of window modulation need to be reset, executing the step (2) again. The image can be more delicately displayed through nonlinear window modulation, the image enhancement effect is achieved, the time for generating the DIB image is effectively shortened through CUDA-based parallel calculation, and the real-time performance is ensured.

Description

Technical field [0001] The invention relates to the field of medical image processing, in particular to a CUDA-based DICOM medical image dynamic non-linear window adjustment method. Background technique [0002] In order to unify the differences in the storage formats and transmission methods of medical images generated by different medical devices, the joint committee developed by the American College of Radiology (ACR) and the National Electrical Manufacturers Association (NEMA) The Digital Imaging and Communications in Medicine (DICOM) standard has developed into an international standard for the transmission of images and related information between devices in medical imaging informatics, which simplifies the exchange of medical image information and is used in actual medical treatment. It is widely used. Medical images conforming to DICOM standards are used in CT, MRI, PET, ultrasound, and radiotherapy planning systems in hospitals. [0003] After the medical image is genera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/20
Inventor 王阳萍党建武邓冲杜晓刚赵庶旭杨景玉王松陈永郭治成闵永智杨艳春蒋偑钊王冰王文润
Owner LANZHOU JIAOTONG UNIV
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