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An automatic positioning method of multi-sequence images

An automatic positioning and multi-sequence technology, applied in the field of image processing, can solve time-consuming and labor-intensive problems, achieve the effect of fast synchronous positioning and reduce manual workload

Active Publication Date: 2010-10-13
LANWON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for automatic positioning of multi-sequence images, which overcomes the time-consuming and labor-intensive defect in the prior art of using manual positioning of multi-sequence images

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  • An automatic positioning method of multi-sequence images

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Embodiment Construction

[0048] Below according to accompanying drawing and embodiment the present invention will be described in further detail:

[0049] Suppose there are two image sequences, and there are N in the first image sequence 1 An image, the plane where the image is located in the three-dimensional coordinate system is Q 1 , Q 2 ,...,Q N1 ; A total of N in the second image sequence 2 An image, the plane where the image is located in the three-dimensional coordinate system is R 1 , R 2 ,...,R N2 . Since the images in each sequence are imaged along the same direction, each image sequence has a unique normal, and the normal of the first image sequence is n q (A q , B q , C q ), the normal of the second image sequence is n r (A r , B r , C r ). figure 1 and figure 2 are the schematic diagrams of the two image sequences in the spatial Cartesian coordinate system, image 3 is a schematic diagram of two image sequences in a unified world coordinate system.

[0050] Let the plan...

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Abstract

The invention discloses an automatic positioning method of multi-sequence images with the following steps of: A1), establishing plane equation of every image in each image sequence in a uniform reference frame; A2, choosing one target point on a certain image in a certain image sequence and confirming the coordinates of the target point; A3, calculating the distance values from the coordinate to all the images in the other image sequences; A4, sequencing the distance values in the same image sequence; A5,. confirming the corresponding target image of the minimum in each sequence; A6, calculating the normal equations from the coordinates to each target image; A7, calculating the plane equation intersection point of each normal equation and each corresponding image and obtaining a intersection point sequence to be the point required by the automatic position.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for automatic positioning of multi-sequence images. Background technique [0002] Such as figure 1 and figure 2 As shown, in medicine, CT (computed tomography, computerized tomography) machine and MR (Magnetic resonance imaging, magnetic resonance) machine are used to scan the patient at equal intervals (or unequal intervals) along a certain direction to form A series of images in this direction is called an image sequence. If the patient is reimaged in another direction, another image sequence is formed. Then, if a certain part of the patient is imaged along multiple different directions, multiple image sequences will be formed. [0003] For multiple image sequences, once a doctor finds a lesion in a certain image of one of the image sequences, he must find images corresponding to the location of the lesion in other image sequences, so as to accurately det...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00A61B19/00A61B90/00
Inventor 陈闽峰程延俊
Owner LANWON TECH