-
11.发明授权公开(公告)号：US12148161B2
公开(公告)日：2024-11-19
申请号：US18172285
申请日：2023-02-21
Applicant: Acer Incorporated
Inventor： Hung-Sheng Hsu , Chien-Hung Li , Yi-Jin Huang
Abstract: An image processing apparatus for evaluating cardiac images and a ventricular status identification method are provided. In the method, a region of interest (ROI) is determined from multiple target images, a variation in grayscale values of multiple pixels in the ROIs of each target image is determined, and one or more representative images are obtained according to the variation in the grayscale values. The target image is related to the pixels within an endocardial contour of a left ventricle. A boundary of the ROI is approximately located at two sides of a bottom of the endocardial contour. The ROI corresponds to a mitral valve. The variation in the grayscale values is related to a motion of the mitral valve. The representative image is for evaluating a status of the left ventricle.
-
Patent Agency Ranking
公开(公告)号：US11844655B2
公开(公告)日：2023-12-19
申请号：US17233563
申请日：2021-04-19
Applicant: Acer Incorporated
Inventor： Yi-Jin Huang , Chien-Hung Li , Hung-Sheng Hsu
CPC classification number: A61B8/5223 , A61B8/065 , G06T7/0012 , G06T7/62 , G06T2207/10132 , G06T2207/30048
Abstract: A method for estimating a ventricular volume is provided and includes: obtaining a left ventricular mask image corresponding to a heart ultrasound image, where the left ventricular mask image is a binary image; finding 3 reference point pixels in the left ventricular mask image, where each of the reference point pixels has a first value, each of the reference point pixels is surrounded by N surrounding pixels, and the surrounding pixels of each of the reference point pixels include N1 first surrounding pixels with the first value and N2 second surrounding pixels with a second value; estimating a left ventricular volume corresponding to the heart ultrasound image based on the reference point pixels.
-
公开(公告)号：US11744542B2
公开(公告)日：2023-09-05
申请号：US17233566
申请日：2021-04-19
Applicant: Acer Incorporated
Inventor： Hung-Sheng Hsu , Chien-Hung Li , Yi-Jin Huang
CPC classification number: A61B8/0883 , A61B8/466 , G06T7/0012 , G06T2207/10132 , G06T2207/20081 , G06T2207/20084 , G06T2207/30048
Abstract: A method for evaluating a movement state of a heart is provided and includes: obtaining a plurality of consecutive heart ultrasound images corresponding to a heart and accordingly estimating a plurality of left ventricular volumes corresponding to the heart ultrasound images; finding a plurality of specific extremums in the left ventricular volumes and accordingly estimating a plurality of time differences among the specific extremums; estimating a statistical characteristic value of the time differences based on the time differences; and determining that an abnormal movement state of the heart occurs in response to determining that at least one of the time differences deviates from the statistical characteristic value up to a predetermined threshold.
-
14.发明授权公开(公告)号：US11610312B2
公开(公告)日：2023-03-21
申请号：US17233558
申请日：2021-04-19
Applicant: Acer Incorporated
Inventor： Hung-Sheng Hsu , Chien-Hung Li , Yi-Jin Huang
Abstract: An image processing apparatus for evaluating cardiac images and a ventricular status identification method are provided. In the method, a region of interest (ROI) is determined from multiple target images, a variation in grayscale values of multiple pixels in the ROIs of each target image is determined, and one or more representative images are obtained according to the variation in the grayscale values. The target image is related to the pixels within an endocardial contour of a left ventricle. A boundary of the ROI is approximately located at two sides of a bottom of the endocardial contour. The ROI corresponds to a mitral valve. The variation in the grayscale values is related to a motion of the mitral valve. The representative image is for evaluating a status of the left ventricle.
-
公开(公告)号：US20220296210A1
公开(公告)日：2022-09-22
申请号：US17233566
申请日：2021-04-19
Applicant: Acer Incorporated
Inventor： Hung-Sheng Hsu , Chien-Hung Li , Yi-Jin Huang
Abstract: A method for evaluating a movement state of a heart is provided and includes: obtaining a plurality of consecutive heart ultrasound images corresponding to a heart and accordingly estimating a plurality of left ventricular volumes corresponding to the heart ultrasound images; finding a plurality of specific extremums in the left ventricular volumes and accordingly estimating a plurality of time differences among the specific extremums; estimating a statistical characteristic value of the time differences based on the time differences; and determining that an abnormal movement state of the heart occurs in response to determining that at least one of the time differences deviates from the statistical characteristic value up to a predetermined threshold.
-
公开(公告)号：US20210216816A1
公开(公告)日：2021-07-15
申请号：US16813741
申请日：2020-03-10
Applicant: Acer Incorporated
Inventor： Yi-Jin Huang , Chien-Hung Li , Yin-Hsong Hsu
Abstract: A method and a system for establishing a light source information prediction model are provided. A plurality of training images are captured for a target object. A white object is attached on the target object. True light source information of the training images is obtained according to a color of the white object in each of the training images. A neural network model is trained according to the training images and the true light source information, and a plurality of pieces of predicted light source information is generated according to the neural network model during the training. A learning rate for training the neural network model is adaptively adjusted based on the predicted light source information.
-
-
-
-
-
Search Results
16
records
(took 0.013 seconds)
