Classification display method of ultrasound data and ultrasound imaging system

Patent metadata

Field	Value
Publication number	US-12402859-B2
Application number	US-202217973067-A
Country	US
Kind code	B2
Filing date	Oct 25, 2022
Priority date	Oct 29, 2021
Publication date	Sep 2, 2025
Grant date	Sep 2, 2025

Abstract

Disclosed are a method for displaying ultrasonic data and an ultrasound imaging system. The method may include: acquiring ultrasonic video data to be displayed; obtaining at least one representative frame from the ultrasonic video data; classifying the representative frame to obtain a category of the representative frame, and determining a category of the ultrasonic video data according to the category of the representative frame; and displaying in categories the ultrasonic video data according to the category of the ultrasonic video data.

First claim

What is claimed is:

1. A method for displaying ultrasonic data, comprising:
acquiring multiple ultrasonic video data to be displayed;
obtaining a representative frame from each ultrasonic video data;
determining a category of each representative frame;
determining a category of each ultrasonic video data according to the category of the representative frame obtained from said ultrasonic video data; and
displaying in categories the multiple ultrasonic video data according to the respective category determined for each ultrasonic video data.

2. The method according to claim 1 , wherein obtaining the representative frame from each ultrasonic video data comprises:
calculating a difference index between adjacent frames according to grayscale distribution information of at least part of frames in the ultrasonic video data; and
selecting one frame as the representative frame according to the difference index between the adjacent frames.

3. The method according to claim 2 , wherein,
calculating the difference index between the adjacent frames according to the grayscale distribution information of at least part of the frames in the ultrasonic video data comprises:
acquiring a grayscale distribution histogram of at least part of the frames in the ultrasonic video data; and
calculating a height or an area of a difference part of the gray distribution histogram between adjacent frames as the difference index between the adjacent frames; and

selecting one frame as the representative frame according to the difference index between the adjacent frames comprises:
selecting a plurality of consecutive frames with the difference index lower than a first preset threshold, and selecting one frame with a smallest variance of the grayscale distribution histogram from the plurality of the consecutive frames as the representative frame.

4. The method according to claim 1 , wherein obtaining the representative frame from each ultrasonic video data comprises:
grouping at least part of frames in the ultrasonic video data according to image similarity among the at least part of frames to obtain a plurality of groups of frames;
determining a center vector of image features of frames in a group of frames with a largest number of frames among the plurality of groups of the frames; and
selecting one frame with a closest distance to the center vector of the image features from the group of frames with the largest number of frames as the representative frame.

5. The method according to claim 4 , wherein grouping at least part of frames in the ultrasonic video data according to the image similarity among the at least part of frames comprises:
grouping a first frame into a first group, and starting from a second frame:
calculating a distance between a current frame and the grouped group, when the distance between the current frame and the grouped group is greater than or equal to a second preset threshold, grouping the current frame into a new group, and when the distance between the current frame and the grouped group is less than the second preset threshold, grouping the current frame into the grouped group with a smallest distance from the current frame.

6. The method according to claim 1 , wherein obtaining the representative frame from each ultrasonic video data comprises:
calculating optical flows for at least part of frames in the ultrasonic video data, and obtaining motion vectors of the at least part of frames according to the optical flows;
determining two local maxima in the motion vectors; and
selecting the frame with a smallest motion vector between the two local maxima as the representative frame when a difference between the two local maxima exceeds a third preset threshold.

7. The method according to claim 1 , wherein obtaining the representative frame from each ultrasonic video data comprises:
calculating an image similarity between a current frame and a previous representative frame, and determining the current frame as a new representative frame when the image similarity between the current frame and the previous representative frame is greater than a fourth preset threshold.

8. The method according to claim 1 , wherein obtaining the representative frame from each ultrasonic video data comprises:
selecting a first or a last frame of the ultrasonic video data as the representative frame.

9. The method according to claim 1 , wherein determining the category of each representative frame comprises:
determining the category of the representative frame according to a scanning part of the representative frame.

10. The method according to claim 1 , wherein determining the category of each representative frame comprises:
determining the category of the representative frame according to an imaging mode of the representative frame.

11. The method according to claim 1 , wherein determining the category of each representative frame comprises:
obtaining image features of the representative frame; and
determining the category of the representative frame according to the image features of the representative frame with a preset algorithm.

12. The method according to claim 1 , further comprising:
acquiring associated data of each ultrasonic video data, the associated data comprising at least one of: user annotation data, user measurement data, and data representing a type of ultrasonic probe used to acquire the ultrasonic video data; and
determining the category of each ultrasonic video data according to the associated data.

13. The method according to claim 1 , wherein displaying in categories the multiple ultrasonic video data according to the respective category determined for each ultrasonic video data comprises:
displaying ultrasonic video data with a same category in a same display area; or
displaying ultrasonic video data with a same category in a same folder.

14. The method according to claim 1 , further comprising:
arranging ultrasonic video data with a same category in order of examination time.

15. The method according to claim 1 , wherein the category of each ultrasonic video data comprises a category of each ultrasonic video data determined by a first classification rule and a category of each ultrasonic video data determined by a second classification rule; and
displaying in categories the multiple ultrasonic video data according to the respective category determined for each ultrasonic video data comprises: selectively displaying in categories the multiple ultrasonic video data according to the category determined by the first classification rule or according to the category determined by the second classification rule in accordance with a received user instruction.

16. The method according to claim 15 , wherein selectively displaying in categories the multiple ultrasonic video data according to the category determined by the first classification rule or according to the category determined by the second classification rule in accordance with the received user instruction comprises:
when displaying in categories the multiple ultrasonic video data according to the category determined by the first classification rule, switching to displaying in categories the multiple ultrasonic video data according to the category determined by the second classification rule when receiving a user instruction instructing to switch a mode of displaying in categories.

17. The method according to claim 9 , wherein displaying in categories the multiple ultrasonic video data according to the respective category determined for each ultrasonic video data comprises:
d

Assignees

• Shenzhen Mindray Biomedical Electronics Co Ltd

Inventors

• Liu Shuo
• Lang Lang
• Zhu Jianguang
• Chen Zhijie

Classifications

• G06V10/765

  using rules for classification or partitioning the feature space · CPC title

• G06T2207/30048

  Heart; Cardiac · CPC title

• G06T2207/30056

  Liver; Hepatic · CPC title

• G06T2207/30061

  Lung · CPC title

• G06T7/0016

  involving temporal comparison · CPC title