An example method includes analyzing morphology and/or amplitude of each of a plurality of electrophysiological signals across a surface of a patient's body to identify candidate segments of each signal satisfying predetermined conduction pattern criteria. The method also includes determining a conduction timing parameter for each candidate segment in each of the electrophysiological signals.

A motion compensation system for tracking and compensating for patient motion during a medical imaging scan comprises an optical marker comprising an optically visible pattern and a mounting portion; a first optical detector positioned to digitally image the optically visible pattern along a first line of sight; a second optical detector positioned to digitally image the optically visible pattern along a second line of sight; a tracking engine configured to determine a pose of the object in six degrees of freedom by analyzing images from the first and second optical detectors; and a controller interface configured to generate tracking information based on the pose and to electronically transmit the tracking information to a scanner controller to enable compensation within a medical imaging scanner for object motion.

A method and system are provided for subdividing a region of interest. The method and system utilize an intravascular mapping tool configured to be inserted into at least one of the endocardial or epicardial space. The mapping tool is maneuvered to select locations proximate to surfaces of the heart, while collecting map points at the select locations to form a point cloud data set during at least one cardiac cycle. The method and system further include selecting a region of interest from the point cloud data set, and forming a triangulation area that include a set of map points from the point cloud data set corresponding to the region of interest. Further, the method and system use a triangulation technique algorithm to generate at least one triangle within the triangulation area formed from at least a portion of the set of map points.

A method of image-based quantification for allergen skin reaction includes imaging an area of skin that has been subject to a skin-prick test to produce one or more images of the area. The method includes identifying regions of wheal and/or flare in the one or more images of the area and quantifying weal and/or flare indicators based on the regions identified. The method also includes outputting results of the quantified wheal and/or flare indicators indicative of quantified allergen skin reaction.

An analysis method and a diagnostic device, enabling one to determine whether a longitudinal melanonychia is caused by a malignant melanoma or a benign nevus by correcting color variation in a dermoscopic image through standardization of color balance without depending on an imaging device or an operator; and a computer program for allowing a computer to function as the diagnostic device. Proposed is a structure including: an image reading step of reading a color image of a longitudinal melanonychia or an affected skin site of a subject as a digital color image; an image processing step involving an image size conversion step of converting the whole size of the digital color image into a preset size through pixel size conversion, and a region of interest (ROI)-extraction step of extracting an ROI required for the diagnosis from the digital color image; a chromatic adaptation transformation step of controlling the color balance of the digital color image data through chromatic adaptation transformation; and a discrimination index (DI) calculation step of determining a DI value using the image after the chromatic adaptation transformation.

Computer-assisted methods for assisting in anomaly identification relating to a dysmorphology analysis comprise retrieving and/or generating a sequence of progressively changing images that depict morphing of at least a subject's first physical feature, between at least a first state representing an identification of a first anomaly relating to a dysmorphology and a second state representing lack of the identification of the first anomaly. The number of images in the sequence is selected to provide a substantially continuous transition between the first and second states. The retrieved and/or generated images are displayed on a display of a processing device, and a user interface on the processing device is provided for a user to make an image selection, which can then be used to determine identification or lack of identification of the anomaly.

A blood volume pulse signal detection apparatus 300 includes a ROI decision unit 325 that determines a ROI in input movie data including image of human face, a sub-ROI decision unit 340 that determines a sub-ROI based on the ROI, a filter design unit 330 that designs a bandpass filter by performing the analysis at frequency domain and/or time domain using an average blood volume pulse signals at ROI according to the physiological characteristics of heart rate, and a noise reduction unit 350 that enhances a blood volume pulse signal at each sub-ROI using the bandpass filter.

An image registration method using a dental object, comprises a generation step of generating a plurality of reference points spaced apart from each other in an oral scan image of a registration target and a computed tomography (CT) image of a registration target, respectively; and a step of registering the oral scan image of the registration target and the CT image of the registration target by using the reference point of the oral scan image (a first reference point) and the reference point of the CT image (a second reference point), wherein the first and second reference points comprise a reference point for one frontmost tooth in the front teeth area and a reference point for two teeth on both rearmost sides of the back teeth area, and wherein the first reference point is derived from an object which is a simplified shape of the teeth.

An approach for determining a heart rate of a subject is performed by at least one processor and includes obtaining video data of the subject; detecting a face of the subject in the video data; selecting at least one region of interest (ROI) included in the face; acquiring photoplethysmography (PPG) signals based on the at least one ROI; and determining the heart rate of the subject based on the PPG signals

An inventive medical system includes a skin-mountable medical device, the skin-mountable medical device including an activatable tactile indicator. The medical system further includes a user interface configured to receive location information, the location information indicating a body location where the skin-mountable medical device shall be mounted. The medical system is configured to determine an active control pattern in dependence of the location information and to control activation of the tactile indicator in accordance with the active control pattern. Also disclosed are a remote control for use in combination with a skin-mountable medical device as well as methods for providing tactile indications to a user of a medical system.