# US 10,945,693 B2 · Three-dimensional imaging method and system

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- Number: US 10,945,693 B2
- Document ID: US10945693B2
- Status: Granted
- Kind: B2
- Application number: 16/309,107
- Filed: 2017-06-09
- Published: 2019-10-10
- Granted: 2021-03-16
- Earliest claimed: 2016-06-15
- Assignees: Telefield Medical Imaging Limited
- Applicants: Telefield Medical Imaging Limited
- Inventors: Yongping Zheng
- Web page: https://patentgrep.com/patent/US10945693B2

## CPC

- A61B 6/5205: {involving processing of raw data to produce diagnostic data}
- A61B 5/0033: {Features or image-related aspects of imaging apparatus, e.g. for MRI, optical tomography or impedance tomography apparatus; Arrangements of imaging apparatus in a room}
- A61B 6/00: Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment (instruments measuring radiation intensity for application in the field of nuclear medicine, e.g. in vivo counting, G01T1/161)
- A61B 6/03: Computed tomography [CT]
- A61B 6/466: {adapted to display 3D data}
- A61B 6/5247: {combining images from an ionising-radiation diagnostic technique and a non-ionising radiation diagnostic technique, e.g. X-ray and ultrasound}
- A61B 8/5238: {for combining image data of patient, e.g. merging several images from different acquisition modes into one image}
- G06T 15/00: Three-dimensional [3D] image rendering
- A61B 5/0035: {adapted for acquisition of images from more than one imaging mode, e.g. combining MRI and optical tomography}
- A61B 6/022: {Stereoscopic imaging}
- A61B 6/463: {characterised by displaying multiple images or images and diagnostic data on one display}
- A61B 6/505: {for diagnosis of bone}
- G16H 30/40: for processing medical images, e.g. editing
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA

## Abstract

Target-oriented three-dimensional imaging method and system are provided. The method comprises: determining, on a scanning object, a portion comprising a scanning target, forming an existing initial three-dimensional structure of the scanning target; scanning the portion comprising the scanning target to form a series of two-dimensional images with spatial location and orientation information; adjusting the initial three-dimensional structure of the scanning target or the local portion of the scanning target; when the initial three-dimensional structure is scanned over, then performing adjustments according to an image obtained and displaying on a display device. The method and system only require some initial three-dimensional information of an imaging target to be able to use two-dimensional imaging to continuously scan a location of a scanning target, adjust an original shape of the target to obtain an actual size, position, and detail of the target, and form a complete three-dimensional image of the target.

## Claims

### Claim 1

A three-dimensional imaging method comprising following steps:
S1) determining, on a scanning object, a portion comprising a scanning target using a three-dimensional scanning;
S2) forming, on a basis of determined portion of the scanning object, an existing initial three-dimensional structure of the scanning target;
S3) scanning the portion comprising the scanning target within a given scan range from various angles to form a series of two-dimensional cross-sectional images with different spatial location and orientation information;
S4) referring to image information related to the scanning target or a local portion of the scanning target within the two-dimensional cross-sectional images, adjusting the initial three-dimensional structure of the scanning target or the local portion of the scanning target;
S5) repeating steps S3) and S4) until the whole initial three-dimensional structure of the scanning target is scanned over, and performing adjustments according to an image obtained;
S6) displaying a final three-dimensional structure image of the scanning target after adjustments on a display device.

### Claim 2 (depends on 1)

The three-dimensional imaging method according to claim 1, wherein, further comprises a step of continuously displaying the initial three-dimensional structure of the scanning target and the adjusted three-dimensional structure during the two-dimensional scanning imaging process.

### Claim 3 (depends on 1)

The three-dimensional imaging method according to claim 1, wherein, the initial three-dimensional structure of the scanning target refers to a known representative three-dimensional anatomical structure of a certain portion of a human body, and the representative three-dimensional anatomical structure is pre-stored in a database.

### Claim 4 (depends on 1)

The three-dimensional imaging method according to claim 1, wherein, the initial three-dimensional structure of the scanning target refers to a representative three-dimensional anatomical structure corresponding to human bodies of different ages and genders, and the representative three-dimensional anatomical structure of different ages and genders is pre-stored in a database.

### Claim 5 (depends on 1)

The three-dimensional imaging method according to claim 1, wherein, the initial three-dimensional structure of the scanning target is obtained by other means implemented on the scanning target, and the other means include performing a CT or MRI scan on the scanning target of human body and storing it in a database in advance.

### Claim 6 (depends on 1)

The three-dimensional imaging method according to claim 1, wherein, the adjustment of the initial three-dimensional structure of the scanning target or the local portion of the scanning target comprises a spatial location, an orientation, a size, and a relative proportion.

### Claim 7 (depends on 1)

The three-dimensional imaging method according to claim 1, wherein, the adjustment of the initial three-dimensional structure of the scanning target or the local portion of the scanning target is a deformable or non-deformable adjustment.

### Claim 8 (depends on 1)

The three-dimensional imaging method according to claim 1, wherein, the image information for controlling the adjustment in the step S4) comprises a characteristic point, a characteristic line, a characteristic face, a characteristic body of the scanning target or the local portion of the scanning target, or a combination thereof.

### Claim 9 (depends on 1)

The three-dimensional imaging method according to claim 1, wherein, the final three-dimensional structure image of the scanning target in the step S6) further comprises a characteristic label used by the adjustment.

### Claim 10

A three-dimensional imaging system comprising:
an imaging device for acquiring two-dimensional cross-sectional images of a scanning target on a determined portion by scanning the determined portion within a given scan range from various angles;
a space locating device for acquiring spatial location and orientation of each two-dimensional cross-sectional image from the imaging device;
a database for providing an initial three-dimensional structure of the scanning target;
a feature extraction unit for extracting characteristic information in the two-dimensional cross-sectional images or three-dimensional images formed by the two-dimensional cross-sectional images;
an adjustment unit for adjusting the initial three-dimensional structure of the scanning target using the characteristic information;
a display device for displaying the two-dimensional cross-sectional images and a three-dimensional structure of the scanning target.