TW201304737A - Method for auxiliary perspective of multi-position - Google Patents

Abstract

A method for auxiliary perspective of multi-position comprising: a position setting step that sets position members to the corresponding feature points of the body surface; a scanning step that scans the body and position members with a scanning system to build up plans of body and organs; a model rebuilding step that rebuilds stereographs from the plans of body and organ with a model rebuilding system; a feature point locating step that tracks the location of position members on the body and the stereographs; and a imaging step that overlaps the body and stereographs according to the corresponding position members with an imaging system.

Description

Auxiliary perspective method for multi-point positioning

The present invention relates to a scanning imaging method, and more particularly to an auxiliary fluoroscopy method for multi-point positioning of medical observations.

In addition to the medical experience and execution success rate, the challenge of internal medicine surgery is to accurately display the affected part of the body that cannot be directly judged by the appearance. In order to enable doctors to have a clearer understanding of the patient's condition, sophisticated medical testing equipment must be used to make the affected part of the patient's body more clearly and accurately present in front of the doctor, helping the doctor to make the most accurate judgment so that the affected part of the patient can be obtained. The most appropriate treatment.

Most of the conventional medical detection systems have steps of scanning, reconstructing or imaging, and the medical detection system performs a whole body or partial scan on the patient, and the scan can use the high penetration force of X-ray to penetrate the affected part. For example, and using an image reconstruction system, the affected part of the patient is presented in a plane or three-dimensional manner, so that the function of the device in the patient is clearly imaged. In addition to 3D stereo imaging, the current detection instruments have also added 4D detection technology, which is to add the original 3D stereo image to a time parameter, and convert the still stereo image into a dynamic stereo image through high-speed computer calculation. Doctors and patients better understand the dynamic changes in the test site.

Although the dynamic stereoscopic image can provide a clearer and more vivid imaging, the patient's body does not always maintain the same movement as the scanning. As the breathing progresses and the body moves, the affected part of the patient will be different. The undulations and deviations cause the dynamic stereoscopic image to still accurately represent the movement of the affected part of the patient, which makes the doctor's position judgment on the affected part of the patient inaccurate and affects the medical quality.

The main object of the present invention is to provide an auxiliary fluoroscopy method for multi-point positioning, which can more accurately image the portion to be tested in the body to be tested.

In order to achieve the foregoing object, the technical means used in the present invention include: an auxiliary perspective method for multi-point positioning, comprising: a positioning member setting step, which is performed on a plurality of feature points of an external surface to be tested; a scanning step of scanning the object to be tested and the number of positioning members by a scanning system to establish a number plane image of the object to be tested and the internal organs; and a model reconstruction step, the model is reconstructed by a model reconstruction system The planar image of the internal organ is reconstructed into a stereoscopic image of the object to be tested and the internal organ; a feature point positioning step is to track the position of the object and the number of the stereoscopic image by a positioning system; and an imaging step, The image of the plurality of stereoscopic images corresponding to the position of the plurality of positioning members is superimposed on the object to be tested by an imaging system.

The method for assisting the multi-point positioning of the present invention, wherein the feature point has a relative undulation with the organ to be observed in the body to be tested.

The method for assisting the multi-point positioning of the present invention, wherein the scanning step and the feature point positioning step have the same set position of the feature point.

The above and other objects, features, and advantages of the present invention will become more apparent from the claims. Body refers to an animal for medical testing.

The "test site to be tested" as used in the present invention refers to a portion of the body to be tested for medical examination, and the site is located in the body of the object to be tested.

The "feature point" in the present invention refers to a mark on the surface of a body to be tested, and the mark has a relative undulating action with the portion to be tested.

Referring to Figures 1 and 2, the present invention combines a sample to be tested 1 with a plurality of positioning members 2, and performs detection by a detecting device 3. The auxiliary perspective method for multi-point positioning includes a positioning member setting step S1. The scanning step S2, a model reconstruction step S3, a feature point positioning step S4, and an imaging step S5.

Referring to the first and second figures, the positioning member is disposed in step S1, and the number of feature points on the surface of the object to be tested 1 is opposite to the number of positioning members 2. In this embodiment, the object to be tested 1 is a human body. The number and position of the feature points are not limited herein. It is preferable to select the surface of the object 1 to be tested in a linked relationship with the site to be tested. In this embodiment, the portion to be tested is the chest and abdominal organs of the human body. The feature point may be set on the chest and the abdomen of the human body surface. The positioning member 2 can be any component that can provide a positioning prompt to mark the position of the number of feature points, and is preferably an infrared reflective ball as the number of feature points is undulating, and as in this embodiment, The infrared reflecting ball is disposed on the feature points of the chest and the abdomen to mark the position of the number of feature points and the undulating action of displaying the feature points by using infrared reflected light.

In the scanning step S2, the object to be tested 1 and the positioning member 2 are simultaneously scanned by a scanning system 31 to obtain a digital plane image. After the plurality of feature points on the surface of the object 1 to be tested are provided with the positioning member 2, the object to be tested 1 and the plurality of positioning members 2 can be scanned at different angles through the scanning system 31 to obtain a view such as a top view or a side view. A plurality of planar images in different directions to provide a clearer appearance of the portion to be tested, and a more accurate relative position of the object 1 and the plurality of positioning members 2. The scanning system 31 can be any conventional scanning device, such as a scanning system 31 with high penetration ray, such as a computed tomography (CT). After the digital system image is obtained through the scanning system 31, the object 1 is to be tested. The shape and relative position of the portion to be tested and the number of positioning members 2 can be clearly presented in the number plane image to facilitate subsequent stereo image reconstruction operations.

The model reconstruction step S3 reconstructs the planar image of the scanning step S2 into a stereoscopic image by a model reconstruction system 32. The model reconstruction system can be any conventional 3D model reconstruction system, such as a 3D reconstruction system configured in a 3D tomography instrument. When the object to be tested 1 and the number of positioning members 2 are scanned by the scanning system 31, a number of plane images are generated for the model reconstruction system 32 to serve as a reference image for reconstructing the model to be tested, and then the system is reconstructed by using the model. The 3D stereoscopic image is reconstructed in a 3D manner, so that the portion to be tested of the object to be tested 1 can be presented in a stereoscopic manner, and the relative position of the positioning member 2 and the portion to be tested in the object to be tested 1 can be clearly indicated. position.

The feature point locating step S4 tracks the position of the locator 2 of the object 1 and the number of stereo images by a positioning system 33. The positioning system 33 can be a processing system with tracking and data comparison, and has a number of sensors to enhance the tracking function. In this embodiment, the sensor is preferably an infrared camera to track the positioning member 2 Infrared reflective ball. After the planar image of the object 1 is reconstructed into a stereoscopic image, the positioning system 33 defines the different distribution states of the plurality of positioning members 2 according to the position and distribution state of the positioning member 2 of the stereoscopic image. The locating member 2 of the object to be tested 1 is tracked by the positioning system 33 to determine the distribution state of the locating member 2 of the object 1 to be tested, and the distribution from the locating member 2 The state captures the corresponding stereoscopic image of the part to be tested. The number of the feature points of the object to be tested 1 and the number of the positioning members 2 are preferably the same as those set in the scanning step S2, so as to facilitate positioning of the same part to be tested of the object 1 to be tested, and adding the to-be-tested The correctness of the fluctuation of the part to be tested in the body 1.

The imaging step S5 is performed by an imaging system 34 to superimpose the stereo image of the part to be tested with the position of the positioning member 2 and the object 1 to be tested. The imaging system 34 is not limited herein, and preferably has a function of superimposing a stereoscopic image of the part to be tested on the object 1 to be tested, such as the Augmented Reality (AR) kit in this embodiment. In order to accurately image the stereoscopic image of the to-be-measured portion in the relative position of the object to be tested 1, the positioning device 2 needs to track the number of the positioning members 2 of the object 1 to be tested, and according to the distribution of the number of positioning members 2 The state determines a corresponding stereo image of the part to be tested, and transmits the stereo image to the imaging system 34, and the stereo image of the part to be tested is superimposed on the object 1 through the imaging system 34. More specifically, after the positioning and tracking of the positioning member 2 of the object 1 to be tested, according to the position distribution between the number of positioning members 2, the positioning member is found out from a plurality of stereoscopic images of the part to be tested. 2 having the same or similarly distributed stereoscopic image of the part to be tested, and transmitting the stereo image of the part to be tested to an imaging system 34, through which the stereo image of the part to be tested is superimposed and to be tested In the opposite part of the body 1, the positioning system 33 immediately tracks the position change of the positioning member 2 of the object 1 to be tested, and according to the number of positioning members 2, according to the body movement and the undulation of the body 1 to be tested. And a stereoscopic image distributed relative to the plurality of positioning members 2, and the stereoscopic image of the portion to be tested is immediately transmitted to the imaging system 34, and the imaging system 34 performs an instantaneous overlapping of the portions to be tested. And providing a more accurate and immediate medical observation of the stereoscopic state of the site.

The auxiliary perspective method for multi-point positioning of the present invention can provide a more accurate instant stereoscopic perspective image according to the movement and undulation of the object to be tested, and has the effect of making stereoscopic imaging more precise.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

[this invention]

1. . . Subject to be tested

2. . . Positioning member

3. . . Perspective imaging system

31. . . Scanning system

32. . . Model reconstruction system

33. . . GPS

34. . . Imaging system

S1. . . Locator setting steps

S2. . . Scanning step

S3. . . Model reconstruction step

S4. . . Feature point positioning step

S5. . . Imaging step

Figure 1 is a flow chart showing the steps of a preferred embodiment of the present invention.

Figure 2 is a block diagram showing the structure of a preferred embodiment of the present invention.

S1. . . Locator setting steps

S2. . . Scanning step

S3. . . Model reconstruction step

S4. . . Feature point positioning step

S5. . . Imaging step

Claims (3)

The auxiliary perspective method for multi-point positioning comprises: a positioning component setting step, which is to set a number of positioning points relative to a plurality of feature points of an external surface to be tested; and a scanning step to scan the object to be tested with a scanning system The positioning member scans to establish a number plane image of the object to be tested and the internal organs; a model reconstruction step reconstructs the plane image of the object to be tested and the internal organs into a body to be tested and an internal organ by a model reconstruction system a plurality of stereoscopic images; a feature point locating step, wherein a positioning system tracks the position of the locating member of the object to be tested and the number of the stereoscopic images; and an imaging step of aligning the plurality of stereo images with the position of the locating member by an imaging system The body is superposed. The auxiliary fluoroscopy method of multi-point positioning according to claim 1 of the patent application scope, wherein the feature point has a relative undulation with an organ to be observed in the body to be tested. The auxiliary perspective method for multi-point positioning according to the first aspect of the patent application, wherein the scanning step and the feature point positioning step have the same set position of the feature point.