Estimation method of cardiac flow field motion in ultrasound images based on cuckoo optimization strategy
An ultrasound image and optimization strategy technology, applied in the field of motion vector estimation of ultrasound images, can solve the problems of long calculation time, insufficient accuracy, low efficiency, etc., and achieve the effect of small estimation error and reduced calculation time.
Active Publication Date: 2020-06-19
SICHUAN PROVINCIAL PEOPLES HOSPITAL
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0008] In view of the above-mentioned deficiencies in the prior art, the method for estimating the cardiac flow field motion of the ultrasonic image based on the cuckoo optimization strategy provided by the present invention solves the problems of long calculation time, low efficiency, and insufficient accuracy in the existing methods
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0037] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.
[0038] Such as figure 1 As shown, the realization of the cardiac flow field motion estimation method based on the cuckoo optimization strategy in ultrasound images includes the following steps:
[0039] S1. Determine the template region block in the first frame of ultrasound image;
[0040] Among them, it is first necessary to determine the shape and size of the template area block. Since the blood flow field in the ultras...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an ultrasonic-image heart flow field motion estimation method based on the cuckoo optimizing strategy. The ultrasonic-image heart flow field motion estimation method includes the following steps that S1, a template area block and a search area block in a first ultrasonic image are determined; S2, a target area block is determined in a second ultrasonic image with the cuckoosearch algorithm and a threshold value of the number of search times; S3, through the cross-correlation similarity coefficient formula, the cross-correlation similarity coefficient of the template area block and the target area block is computed; S4, whether the number of search times of the search area block is larger than a set threshold value or not is judged, if the number of search times ofthe search area block is larger than the set threshold value, the step S5 is carried out, and if the number of search times of the search area block is smaller than or equal to the set threshold value, the step S2 is returned; S5, a target area block with the highest cross-correlation similarity coefficient is selected as a matching area block; S6, the template area block and the matching area block are combined, and an ultrasonic-image heart flow field motion vector is generated. According to the ultrasonic-image heart flow field motion estimation method, computing time is shortened, an errorof blood flow field motion estimation is small, and ultrasonic-image heart flow field motion estimation meeting the actual diagnosis requirement is provided.
Description
technical field [0001] The invention belongs to the technical field of motion vector estimation methods for ultrasonic images, and in particular relates to a method for estimating cardiac flow field motion in ultrasonic images based on a cuckoo optimization strategy. Background technique [0002] Cardiovascular disease is one of the most serious diseases that endanger human life and health, and its incidence is increasing year by year. According to the report of WHO, the death cases caused by cardiovascular diseases account for 1 / 3 of all death cases on average, and more than 17 million people die from heart disease and related diseases every year in the world. [0003] The blood flow field in the ventricle is complex and changeable. In order to detect abnormal blood flow field caused by heart disease, it is very important to grasp the change process and distribution of cardiac blood flow. Various heart diseases often show abnormal changes in the blood flow field in the car...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/06
CPCA61B8/06A61B8/52
Inventor 阿都建华尹立雪张红梅陆景谢盛华
Owner SICHUAN PROVINCIAL PEOPLES HOSPITAL