Prostate image registration system and method based on automatic segmentation and pelvis alignment

An automatic segmentation and image registration technology, applied in the field of image processing, can solve problems such as difficult clinical applications and inaccurate registration results, and achieve the effect of overcoming manual interaction, achieving accurate registration, and improving efficiency

Active Publication Date: 2019-10-22
XIDIAN UNIV
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Problems solved by technology

Because this method only performs registration for the prostate organ, ignoring other information of the pelvic ima

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  • Prostate image registration system and method based on automatic segmentation and pelvis alignment
  • Prostate image registration system and method based on automatic segmentation and pelvis alignment
  • Prostate image registration system and method based on automatic segmentation and pelvis alignment

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Embodiment Construction

[0041] The embodiments and effects of the present invention will be further described below in conjunction with the accompanying drawings.

[0042] refer to figure 1 , the system module of the present invention includes image preprocessing module 1; Multimodal image training module 2; Multimodal image segmentation module 3; Multimodal image registration module 4; Image display module 5; Wherein:

[0043] The image preprocessing module 1 is used to pair the prostate CT image with the prostate MRI image according to the time of image generation to obtain the prostate multimodal image paired data set, and divide it into prostate multimodal image training samples according to the ratio of 6:4 set and test sample set, and then use the method of sliding window matching to generate the prostate multimodal image sequence label;

[0044] The multimodal image training module 2 is used to utilize the prostate multimodal image sample training set obtained by the input image preprocessing...

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Abstract

The invention discloses a prostate image registration system and method based on automatic segmentation and pelvis alignment, and mainly solves the problems of large modal difference and low registration precision when prostate multi-modal medical image registration is realized in the prior art. The implementation scheme includes: performing joint segmentation on the prostate CT image sequence andthe prostate MRI image sequence by using a trained prostate multi-modal image segmentation network U-net to obtain a prostate CT image segmentation result image set C and a prostate MRI image segmentation result image set M; and performing two-stage registration on the two image sets C and M to obtain a final registration image set L; and finally, fusing and displaying the final registration image set L and the prostate CT image segmentation result image set C. According to the invention, the prostate multi-modal image difference is reduced, the problem of small-deformation image registrationis solved, the multi-modal image registration efficiency and registration precision are improved, and the method can be used for observing the shape and position change of a prostate tumor anatomicalpart.

Description

technical field [0001] The invention belongs to the technical field of image processing, and further relates to an image registration system and method, which can be used to observe the shape and position changes of anatomical parts of prostate tumors, realize tracking of lesion parts and adjust radiotherapy plans. Background technique [0002] Image registration refers to aligning two images into a common coordinate system so that changes between the two can be monitored. Registration based on feature points is one of the most commonly used image registration methods. Feature points need to be able to be distinguished from adjacent image points. If this condition is not met, it is impossible to uniquely match it with a corresponding point in another image. Therefore, a feature neighborhood should be sufficiently different from the neighborhood obtained after a small shift. The feature points that are easy to identify and extract in the image include intersection points b...

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Application Information

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IPC IPC(8): G06T7/33G06T7/11
CPCG06T7/33G06T7/11G06T2207/30081G06T2207/10088
Inventor 缑水平田茹陈姝喆刘豪锋毛莎莎焦昶哲陈佳伟焦李成
Owner XIDIAN UNIV
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